Physics Principles and Problems Chapter 2 Review Answers

PHYSICS Principles and Problems Chapter 2: Representing Motion

CHAPTER 2 Representing Motion Big IDEA You can apply deportation and velocity to draw an object'southward motion.

Chapter two Table Of Contents Section two. one Picturing Motion Department two. 2 Where and When? Section 2. 3 Position-Fourth dimension Graphs Department 2. 4 How Fast? Click a hyperlink to view the corresponding slides. Exit

Picturing Motion 2. SECTION 1 MAIN IDEA You can utilise motion diagrams to show an object'southward position changes over fourth dimension. Essential Questions • How do motility diagrams stand for motion? • How can you use a particle model to represent a moving object?

Picturing Motion 2. Section 1 Review Vocabulary • Model a representation of an idea, outcome, structure or object to aid people better understand it. New Vocabulary • Motility diagram • Particle model

ii. Section 1 Picturing Move All Kinds of Motion • Perceiving motion is instinctive—your eyes pay more than attention to moving objects than to stationary ones. Movement is all effectually you lot. • Movement travels in many directions, such as the direct-line path of a bowling ball in a lane's gutter, the curved path of a tether ball, the spiral of a falling kite, and the swirls of h2o circumvoluted a drain.

2. SECTION ane Picturing Motion All Kinds of Motion (cont. ) • When an object is in motion, its position changes. Its position can change forth the path of a straight line, a circumvolve, an arc, or a back-and-forth vibration.

2. Section 1 Picturing Motion All Kinds of Motion (cont. ) • Straight-line motility follows a path directly betwixt two points without turning left or correct. –Ex. Forward and astern, up and downward, or north and south. • A description of motion relates to place and fourth dimension. You must be able to answer the questions of where and when an object is positioned to draw its motion.

two. SECTION i Picturing Motion Diagrams Click image to view moving-picture show.

two. SECTION i Section Check Explain how applying the particle model produces a simplified version of a motion diagram?

2. Section 1 Section Check Reply: Keeping rails of the motion of the runner is easier if we disregard the movements of the arms and the legs, and instead concentrate on a unmarried point at the center of the body. In issue, nosotros tin can disregard the fact that the runner has some size and imagine that the runner is a very small object located precisely at that central point. A particle model is a simplified version of a motion diagram in which the object in motion is replaced past a series of single points.

2. Department 1 Department Check Which statement describes best the motion diagram of an object in move? A. a graph of the time data on a horizontal axis and the position on a vertical centrality B. a series of images showing the positions of a moving object at equal time intervals C. a diagram in which the object in move is replaced by a serial of single points D. a diagram that tells usa the location of the zero betoken of the object in motion and the direction in which the object is moving

ii. SECTION 1 Section Check Answer Reason: A series of images showing the positions of a moving object at equal fourth dimension intervals is called a motion diagram.

2. SECTION i Department Check What is the purpose of drawing a motion diagram or a particle model? A. to summate the speed of the object in motion B. to calculate the distance covered by the object in a particular time C. to check whether an object is in motion D. to summate the instantaneous velocity of the object in motion

two. SECTION 1 Section Check Answer Reason: In a motion diagram or a particle model, we chronicle the motion of the object with the background, which indicates that relative to the background, just the object is in motion.

Where and When? 2. SECTION 2 Main Thought A coordinate system is helpful when you lot are describing movement. Essential Questions • What is a coordinate organization? • How does the chosen coordinate arrangement affect the sign of objects' positions? • How are time intervals measured? • What is deportation? • How are motion diagrams helpful in answering questions about an object's position or displacement?

Where and When? ii. SECTION two Review Vocabulary • Dimension extension in a given direction; i dimension is along a straight line; three dimensions are tiptop, width and length. New Vocabulary • Coordinate system • Vector • Origin • Scalar • Position • Time interval • Altitude • Displacement • Magnitude • Resultant

two. Section 2 Where and When? Coordinate Systems • A coordinate system tells you the location of the zero indicate of the variable you are studying and the direction in which the values of the variable increase. • The origin is the signal at which both variables take the value zero.

2. Section ii Where and When? Coordinate Systems (cont. ) • In the instance of the runner, the origin, represented by the aught end of the measuring tape, could be placed five m to the left of the tree.

two. Department 2 Where and When? Coordinate Systems (cont. ) • The motion is in a straight line, thus, your measuring tape should lie along that straight line. The straight line is an axis of the coordinate system.

2. SECTION ii Where and When? Coordinate Systems (cont. ) • Yous can betoken how far away an object is from the origin at a particular fourth dimension on the simplified motion diagram by cartoon an arrow from the origin to the signal representing the object, equally shown in the figure.

two. Department two Where and When? Coordinate Systems (cont. ) • The ii arrows locate the runner'due south position at two different times. • Because the movement in the effigy below is in one management, the pointer lengths represent distance.

2. Section 2 Where and When? Coordinate Systems (cont. ) • The length of how far an object is from the origin indicates its distance from the origin.

2. SECTION 2 Where and When? Coordinate Systems (cont. ) • A position 9 1000 to the left of the tree, 5 m left of the origin, would be a negative position, as shown in the figure below.

2. SECTION two Where and When? Vectors and Scalars • Quantities that have both size, too called magnitude, and management, are called vectors, and tin can be represented by arrows. – Vector quantities will be represented by boldface messages. • Quantities that are only numbers without whatsoever direction, such as distance, time, or temperature, are chosen scalars. – Scalars quantities will exist represented by regular letters.

two. Section ii Where and When? Vectors and Scalars (cont. ) • The difference betwixt the initial and the final times is called the time interval.

2. Section 2 Where and When? Vectors and Scalars (cont. ) • The common symbol for a fourth dimension interval is ∆t, where the Greek letter delta, ∆, is used to represent a change in a quantity.

2. Section 2 Where and When? Vectors and Scalars (cont. ) • The fourth dimension interval is divers mathematically every bit follows: • Although i and f are used to represent the initial and final times, they tin be initial and final times of whatever time interval yous cull. • The time interval is a scalar because it has no direction.

2. Department 2 Where and When? Vectors and Scalars (cont. ) • The effigy below shows the position of the runner at both the tree and the lamppost. • These arrows have magnitude and direction. • Position is a vector with the arrow's tail at the origin and the arrow's tip at the place.

2. Section 2 Where and When? Vectors and Scalars (cont. ) • The symbol x is used to represent position vectors mathematically. • Eleven represents the position at the tree, xf represents the position at the lamppost and ∆x, represents the modify in position, displacement, from the tree to the lamppost.

2. SECTION 2 Where and When? Vectors and Scalars (cont. ) • Deportation is divers mathematically as: ∆10 = xf - xi • Remember that the initial and last positions are the first and end of any interval you cull, then a plus and minus sign might be used to indicate direction.

two. Section ii Where and When? Vectors and Scalars (cont. ) • A vector that represents the sum o f 2 other vectors is chosen a resultant. • The figure to the correct shows how to add and subtract vectors in one dimension.

2. SECTION 2 Where and When? Vectors and Scalars (cont. ) • To completely depict an object's displacement, you lot must indicate the distance information technology traveled and the management it moved. Thus, displacement, a vector, is not identical to distance, a scalar; it is distance and direction. • While the vectors fatigued to stand for each position change, the length and direction of the deportation vector does not. • The displacement vector is always drawn with its flat cease, or tail, at the earlier position, and its bespeak, or tip, at the afterwards position.

two. SECTION 2 Section Cheque Differentiate between scalar and vector quantities.

2. SECTION 2 Section Check Answer Reason: Quantities that have both magnitude and management are called vectors, and tin be represented past arrows. Quantities that are just numbers without any direction, such as fourth dimension, are called scalars.

Section Check two. Department 2 What is displacement? A. the vector fatigued from the initial position to the final position of the motion in a coordinate organisation B. the distance between the initial position and the last position of the motility in a coordinate system C. the amount by which the object is displaced from the initial position D. the amount past which the object moved from the initial position

two. Section ii Section Check Answer Reason: Options B, C, and D are all defining the distance of the motion and not the displacement. Deportation is a vector drawn from the starting position to the concluding position.

2. Department two Department Check Refer to the bordering figure and calculate the fourth dimension taken by the automobile to travel from i signal to another signal? A. xx min C. 25 min B. 45 min D. five min

2. SECTION 2 Section Check Respond Reason: Time interval t = tf – ti Here tf = 01: 45 and ti = 01: twenty Therefore, t = 25 min

Position-Time Graphs ii. SECTION 3 Master Thought You tin use position-time graphs to make up one's mind an object's position at a sure time. Essential Questions • What information exercise position-time graphs provide? • How tin can you apply a position-time graph to translate an object's position or displacement? • What are the purposes of equivalent representations of an object's motion?

2. Section 3 Position-Time Graphs Review Vocabulary • Intersection a point where lines meet and cross. New Vocabulary • Position-time graph • Instantaneous position

2. Department three Position-Fourth dimension Graphs Finding Positions Click image to view pic.

two. Section 3 Position-Fourth dimension Graphs Finding Positions (cont. ) • Graphs of an object'due south position and time incorporate useful information about an object's position at various times. It can exist helpful in determining the displacement of an object during various time intervals.

ii. SECTION iii Position-Fourth dimension Graphs Finding Positions (cont. ) • The data in the table can exist presented by plotting the time data on a horizontal centrality and the position data on a vertical axis, which is chosen a position-time graph.

ii. Section three Position-Time Graphs Finding Positions (cont. ) • To draw the graph, plot the object'due south recorded positions. Then, draw a line that best fits the recorded points. This line represents the most likely positions of the runner at the times betwixt the recorded data points. • The symbol x represents the instantaneous position of the object—the position at a detail instant.

2. Section iii Position-Time Graphs Finding Positions (cont. ) • Words, pictorial representations, motion diagrams, data tables, and position-time graphs are all representations that are equivalent. They all comprise the aforementioned information almost an object'due south move. • Depending on what you lot want to find out nigh an object's movement, some of the representations will be more than useful than others.

2. SECTION 3 Position-Time Graphs Multiple Objects on a Position-Time Graph In the graph, when and where does runner B laissez passer runner A?

two. Department iii Position-Time Graphs Multiple Objects on a Position-Time Graph (cont. ) Step one: Analyze the Problem Restate the questions. Question 1: At what time do A and B take the same position? Question 2: What is the position of runner A and runner B at this time?

2. Section 3 Position-Fourth dimension Graphs Multiple Objects on a Position-Time Graph (cont. ) Step ii: Solve for the Unknown

ii. SECTION 3 Position-Fourth dimension Graphs Multiple Objects on a Position-Time Graph (cont. ) Question 1 In the figure, examine the graph to find the intersection of the line representing the motion of A with the line representing the motion of B. These lines intersect at 45 southward.

2. Section iii Position-Time Graphs Multiple Objects on a Position-Time Graph (cont. ) Question two In the figure, examine the graph to find the intersection of the line representing the motion of A with the line representing the motility of B. The position of both runners is about 190 one thousand from the origin.

2. Department 3 Position-Time Graphs Multiple Objects on a Position-Time Graph (cont. ) B passes A well-nigh 190 m beyond the origin, 45. 0 south later on A has passed the origin.

2. Section 3 Position-Fourth dimension Graphs Considering the Motility of Multiple Objects The steps covered were: Footstep 1: Analyze the Problem Restate the questions. Step 2: Solve for the Unknown

two. SECTION three Section Check A position-time graph of an athlete winning the 100 -one thousand run is shown. Estimate the fourth dimension taken by the athlete to attain 65 m. A. 6. 0 due south B. 6. 5 s C. 5. 5 s D. 7. 0 s

2. SECTION 3 Department Check Answer Reason: Draw a horizontal line from the position of 65 m to the line of best fit. Draw a vertical line to touch the time axis from the bespeak of intersection of the horizontal line and line of best fit. Notation the time where the vertical line crosses the time axis. This is the estimated time taken by the athlete to accomplish 65 grand.

2. Section 3 Section Cheque A position-time graph of an athlete winning the 100 -m run is shown. What was the instantaneous position of the athlete at 2. 5 southward? A. fifteen k B. xx m C. 25 m D. thirty 1000

2. Section 3 Section Check Respond Reason: Draw a vertical line from the position of 2. 5 thou to the line of best fit. Depict a horizontal line to touch the position axis from the point of intersection of the vertical line and line of best fit. Annotation the position where the horizontal line crosses the position axis. This is the instantaneous position of the athlete at 2. 5 s.

2. Department 3 Section Check From the post-obit position-fourth dimension graph of two brothers running a 100 -m dash, at what time do both brothers accept the same position? The smaller brother started the race from the xx -yard mark.

2. SECTION three Department Bank check Respond Reason: The two brothers run into at 6 southward. In the figure, nosotros find the intersection of lines representing the motility of one brother with the line representing the motion of other brother. These lines intersect at 6 due south and at threescore chiliad.

How Fast? two. SECTION 4 MAIN Thought An object'southward velocity is the rate of change in its position. Essential Questions • What is velocity? • What is the difference between speed and velocity? • How can you decide an object's boilerplate velocity from a position-time graph? • How can you lot represent motion with pictorial, physical, and mathematical models?

How Fast? ii. Section 4 Review Vocabulary • Absolute value magnitude of a number, regardless of sign. New Vocabulary • Average velocity • Average speed • Instantaneous velocity

2. Section 4 How Fast? Velocity and Speed • Suppose you recorded 2 joggers in one motion diagram, as shown in the figure beneath. The position of the jogger wearing carmine changes more than the of the jogger wearing blueish • For a fixed fourth dimension, the magnitude of the displacement (∆x), is greater for the jogger in red. • If each jogger travels 100 thousand, the fourth dimension interval (∆t) would be smaller for the jogger in red.

2. Section 4 How Fast? Velocity and Speed (cont. ) • Recall from Chapter ane that to notice the slope, you start cull ii points on the line. • Next, you subtract the vertical coordinate (ten in this example) of the first indicate from the vertical coordinate of the second point to obtain the rise of the line. • Later on that, you lot subtract the horizontal coordinate (t in this case) of the kickoff betoken from the horizontal coordinate of the 2nd bespeak to obtain the run. • Finally, you lot divide the rise by the run to obtain the slope.

2. Department 4 How Fast? Velocity and Speed (cont. ) • The slopes of the 2 lines are found every bit follows: • A greater slope, shows that the red jogger traveled faster.

two. Department iv How Fast? Velocity and Speed (cont. ) • The unit of the gradient is meters per second. In other words, the slope tells how many meters the runner moved in 1 s. • The slope is the change in position, divided by the time interval during which that alter took place, or (xf - xi) / (tf - ti), or Δx/Δt. • When Δx gets larger, the slope gets larger; when Δt gets larger, the slope gets smaller.

2. SECTION iv How Fast? Velocity and Speed (cont. ) • The slope of a position-time graph for an object is the object'south average velocity and is represented by the ratio of the change of position to the time interval during which the alter occurred. Average Velocity ≡ Δx _______ Δt (xf - xi) = ____ (tf - ti) • The symbol ≡ ways that the left-mitt side of the equation is defined by the right-mitt side.

2. SECTION 4 How Fast? Velocity and Speed (cont. ) • It is a common misconception to say that the slope of a positiontime graph gives the speed of the object. • The gradient of the positiontime graph on the right is – 5. 0 m/south. It indicates the average velocity of the object and not its speed.

two. SECTION iv How Fast? Velocity and Speed (cont. ) • The object moves in the negative direction at a rate of v. 0 thou/s.

ii. SECTION four How Fast? Velocity and Speed (cont. ) • The slope's accented value is the object's boilerplate speed, 5. 0 grand/south, which is the distance traveled divided by the time taken to travel that distance.

2. SECTION 4 How Fast? Velocity and Speed (cont. ) • If an object moves in the negative direction, then its displacement is negative. The object's velocity will always have the aforementioned sign as the object's deportation.

2. SECTION iv How Fast? Velocity and Speed (cont. ) The graph describes the motility of a pupil riding his skateboard along a smooth, pedestrian-free sidewalk. What is his average velocity? What is his average speed?

two. SECTION four How Fast? Velocity and Speed (cont. ) Step one: Analyze and Sketch the Problem Place the coordinate system of the graph.

2. SECTION 4 How Fast? Velocity and Speed (cont. ) Step 2: Solve for the Unknown

ii. SECTION 4 How Fast? Velocity and Speed (cont. ) Identify the unknown variables. Unknown:

two. Department 4 How Fast? Velocity and Speed (cont. ) Find the average velocity using two points on the line. Utilize magnitudes with signs indicating directions. Δx = _____ Δt (xf - xi) = ______ (tf - ti)

2. SECTION four How Fast? Velocity and Speed (cont. ) Substitute x 2 = 12. 0 m, x 1 = 6. 0 m, t 2 = 8. 0 s, t 1 = 4. 0 due south:

two. Department iv How Fast? Velocity and Speed (cont. ) Stride three: Evaluate the Reply

two. SECTION 4 How Fast? Velocity and Speed (cont. ) Are the units correct? m/south are the units for both velocity and speed. Do the signs make sense? The positive sign for the velocity agrees with the coordinate system. No direction is associated with speed.

two. SECTION four How Fast? Velocity and Speed (cont. ) The steps covered were: Step 1: Clarify and Sketch the Problem Place the coordinate system of the graph.

ii. Section iv How Fast? Velocity and Speed (cont. ) The steps covered were: Stride two: Solve for the Unknown Find the average velocity using two points on the line. The boilerplate speed is the absolute value of the average velocity. Step 3: Evaluate the Respond

ii. SECTION four How Fast? Velocity and Speed (cont. ) • A move diagram shows the position of a moving object at the start and terminate of a time interval. During that time interval, the speed of the object could accept remained the same, increased, or decreased. All that can be determined from the motion diagram is the average velocity. • The speed and direction of an object at a item instant is called the instantaneous velocity. • The term velocity refers to instantaneous velocity and is represented by the symbol five.

2. Department 4 How Fast? Velocity and Speed (cont. ) • Although the average velocity is in the same direction every bit deportation, the two quantities are not measured in the same units. • Even so, they are proportional—when displacement is greater during a given time interval, so is the average velocity. • A motion diagram is not a precise graph of average velocity, only you can indicate the direction and magnitude of the average velocity on it.

2. SECTION 4 How Fast? Equation of Motion • Using the position-time graph used before with a gradient of -v. 0 m/southward, recall that you tin represent whatsoever directly line with the equation, y = mx + b. • y is the quantity plotted on the vertical axis, m is the line'due south slope, 10 is the quantity plotted on the horizontal axis and b is the line'south y-intercept.

2. SECTION 4 How Fast? Equation of Move (cont. ) • Based on the information shown in the table, the equation y = mx + b becomes x = t + xi, or, by inserting the values of the constants, x = (– 5. 0 chiliad/southward)t + xx. 0 yard. • Yous cannot fix two items with different units equal to each other in an equation. Comparison of Direct Lines with Position-Time Graphs General Variable Specific Move Variable y ten yard Value in Graph -5. 0 1000/due south x t b xi xx. 0 m

ii. Department 4 How Fast? Equation of Motion (cont. ) • An object's position is equal to the average velocity multiplied past time plus the initial position. • This equation gives yous another way to represent the motion of an object.

2. SECTION four Section Cheque Which of the following statements defines the velocity of the object's motion? A. the ratio of the altitude covered past an object to the corresponding time interval B. the charge per unit at which distance is covered C. the altitude moved by a moving trunk in unit time D. the ratio of the deportation of an object to the respective fourth dimension interval

2. SECTION iv Section Bank check Reply Reason: Options A, B, and C define the speed of the object's motion. The velocity of a moving object is defined as the ratio of the deportation ( 10) to the fourth dimension interval ( t).

ii. SECTION 4 Section Check Which of the statements given below is correct? A. Boilerplate velocity cannot have a negative value. B. Average velocity is a scalar quantity. C. Average velocity is a vector quantity. D. Average velocity is the absolute value of the slope of a position-time graph.

ii. SECTION 4 Section Check Answer Reason: Average velocity is a vector quantity, whereas all other statements are truthful for scalar quantities.

2. SECTION 4 Section Check The position-time graph of a car moving on a street is given hither. What is the boilerplate velocity of the car? A. 2. 5 m/southward B. five 1000/s C. 2 g/s D. 10 chiliad/south

2. SECTION 4 Department Check Answer Reason: The average velocity of an object is the slope of a position-time graph.

Representing Motion Affiliate 2 Resources Physics Online Report Guide Chapter Assessment Questions Standardized Test Do

Picturing Motion 2. SECTION 1 Report Guide • A motility diagram shows the position of an object at successive equal time intervals. • In the particle model motion diagram, an object's position at successive times is represented by a serial of dots. The spacing between dots indicates whether the object is moving faster or slower.

Where and When? 2. Section 2 Study Guide • A coordinate system gives the location of the zero bespeak of the variable you are studying and the direction in which the values of the variable increase. • A vector fatigued from the origin of a coordinate system to an object indicates the object'due south position in that coordinate system. The directions called as positive and negative on the coordinate organization.

Where and When? 2. Section 2 Study Guide • A fourth dimension interval is the divergence between two times. • Change in position is displacement, which has both magnitude and management.

Where and When? two. SECTION two Study Guide • On a motion diagram, the displacement vector's length represents how far the object was displaced. The vector points in the direction of the displacement, from 11 to xf.

Position-Fourth dimension Graphs 2. Section 3 Study Guide • Position-time graphs provide information about the motion of objects. They also might betoken where and when two objects meet. • The line on a position-time graph describes an object's position at each time. • Motion can be described using words, motion diagrams, data tables or graphs.

How Fast? ii. SECTION 4 Study Guide • An object's velocity tells how fast information technology is moving and in what direction it is moving. • Speed is the magnitude of velocity. • Slope on a position-time graph described the boilerplate velocity of the object.

How Fast? 2. Section 4 Study Guide • You can correspond motility with pictures and physical models. A uncomplicated equation relates an object'southward initial position (xi), its constant average velocity, its position (ten) and the time (t) since the object was at its initial position.

Affiliate two Representing Motion Affiliate Cess What should be true about the motion of an object in lodge for you lot to treat that object as if information technology were a particle? A. The object should be no smaller than your fist. B. The object should be small compared to its motion. C. The object should be no larger than yous tin can lift. D. The object should not be moving faster than the speed of sound.

CHAPTER 2 Representing Movement Chapter Assessment Reason: y'all can care for even planets and stars as particles as long as those objects are small-scale compared to the motion you are studying.

CHAPTER 2 Representing Move Chapter Assessment Which is the distance and direction from 1 point to another? A. Displacement B. Magnitude of distance C. Position D. Velocity

CHAPTER two Representing Motion Affiliate Assessment Reason: Velocity is speed and direction.

CHAPTER two Representing Motion Chapter Cess On a position-time graph, how would you indicate that object A has a greater velocity than object B? A. Make the slope for object A less than the slope for object B. B. Make the slope for object A greater than the gradient for object B. C. Make the y-intercept for object A less then the y-intercept for object B. D. Make the y-intercept for object A greater than the yintercept for object B.

Chapter two Representing Motility Chapter Assessment Answer: The slope of a line on a position-time graph indicates the object'due south velocity.

Chapter 2 Representing Motion Chapter Assessment A automobile is moving at a constant speed of 25 g/south. How far does this car motility in 0. two southward, the approximate reaction fourth dimension for an average person? A. 5 thou B. 10 m C. 25 1000 D. 50 one thousand

CHAPTER 2 Representing Motion Chapter Cess Reason: (25 m/s)(0. 2 s) = five thou

Affiliate 2 Representing Motion Chapter Assessment Which is a measurement of velocity? A. xx k B. 33 km/s C. 300 km west D. 7800 m/due south north

CHAPTER 2 Representing Move Chapter Assessment Reason: Velocity measures both speed and management.

Representing Motion Chapter ii Standardized Test Practice Which argument about velocity vectors is true? A. All velocity vectors are positive. B. Velocity vectors accept magnitude only no direction. C. Velocity vectors and displacement vectors are the same matter. D. A velocity vector'southward length should exist proportional to the object's speed.

CHAPTER 2 Representing Motion Standardized Test Practice What is the average speed of a sprinter who completes a 55 -m dash in 6. ii s? A. 6. two m/s B. 7. i chiliad/s C. 8. ix m/due south D. 11 m/s

Affiliate two Representing Motion Standardized Exam Practice Car A is moving faster than Car B on the highway. Which argument describes the particle model movement diagrams for Car A and Car B? A. The does for Car A are farther apart than the dots for Car B. B. The dots for Machine A are closer together than the dots for Car B. C. The slope of the motility diagram is greater for Car A than for Motorcar B. D. The slope of the motion diagram is less for Car A than for Car B.

Chapter ii Representing Movement Standardized Exam Exercise An athlete runs 4 complete laps effectually a 200 -one thousand rail. What is the athlete's displacement? A. 0 grand B. 200 thousand C. 400 yard D. 800 m

Chapter two Representing Move Standardized Examination Practice Which correctly describes a human relationship between an object's particle model motility diagram and that object's graph of position v. time? A. If the dots on the move diagram are closer together, then the slope of the graph is greater. B. If the dots on the motion diagram are farther autonomously, then the slope of the graph is greater. C. If the dots on the motion diagram are closer together, then the y-intercept of the graph is less. D. If the dots on the move diagram are farther autonomously, so the yintercept of the graph is less.

CHAPTER 2 Representing Motion Standardized Test Exercise Exam-Taking Tip Stock up on Supplies Bring all your test-taking tools: number two pencils, black and blue pens, erasers, correction fluid, a sharpener, a ruler, a calculator, and a protractor.

CHAPTER 2 Representing Motion Chapter Resources Coordinate Systems

CHAPTER 2 Representing Movement Chapter Resource Coordinate Systems Showing Position

CHAPTER ii Representing Motion Affiliate Resources Move Diagram Showing Negative Position

CHAPTER 2 Representing Motility Chapter Resources Position-Time Graph for the Runner

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