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Part 1 Semester Review (Motion 101)

Part 1 Semester Review (Motion 101)

Assessment

Presentation

Physics

9th - 12th Grade

Medium

NGSS
HS-PS2-1, HS-PS2-4

Standards-aligned

Created by

Katherine Johnson

Used 41+ times

FREE Resource

5 Slides • 16 Questions

1

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2

Multiple Choice

Question image

The graph describes the motion of a car that was initially heading north along a straight north-south road. Each of the five labeled intervals on the graph – A,B,C,D and E – lasts for the same amount of time. North is the positive direction. Over which interval(s) is the velocity of the object greater than zero?

1

interval A, only

2

interval B, only

3

interval D, only

4

intervals A, B, and C

5

intervals A, B, C, and D

3

Multiple Choice

Question image

The graph describes the motion of a car that was initially heading north along a straight north-south road. Each of the five labeled intervals on the graph – A,B,C,D and E – lasts for the same amount of time. North is the positive direction. Over which interval does the object have the greatest average speed?

1

interval A,

2

interval B

3

interval C

4

intervals D

5

intervals E

4

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5

Multiple Choice

Question image

At what time after 0 seconds will the object first return to its starting point?

1

3 sec

2

6 sec

3

9 sec

4

12 sec

5

Sometime after 12 sec

6

Multiple Choice

Question image

At what time shown on the graph does the object first begin to reduce its speed?

1

0 sec

2

3 sec

3

6 sec

4

9 sec

5

12 sec

7

Multiple Choice

Question image

At what time after 0 seconds does the object first begin to travel southward?

1

0 sec

2

3 sec

3

6 sec

4

9 sec

5

12 sec

8

Multiple Choice

Question image

A box slides horizontally to the right. The graph shows the box's velocity as a function of time. Which of the following statements correctly describes the motion of the box?

1

The box is moving at a constant velocity from t=0 seconds to t=8 seconds.

2

The box ends up back at its starting point between t=5 seconds and t=6 seconds.

3

The box begins decreasing its speed between t=5 seconds and t=6 seconds.

4

The box begins changes directions between t=5 seconds and t=6 seconds.

9

Multiple Choice

Question image

The graph above shows the velocity versus time for an object moving in a straight line. At what time after t = 0 does the object again pass through its initial position at zero seconds?

1

Between 0 and 1 s

2

1 s

3

Between 1 and 2 s

4

2 s

5

Between 2 and 3 s

10

Multiple Choice

Which pair of graphs below shows the distance traveled versus time and the speed versus time for an object uniformly accelerated from rest starting at time t = 0?

1
2
3
4
5

11

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12

Multiple Choice

A small cart is rolling freely on a ramp with a constant acceleration of 0.5 m/s2 west. Initially, the cart has a velocity of 2.0 m/s East. If the cart never leaves the ramp, which of the following best describes the motion of the cart after 5 seconds?

1

The cart is traveling East and it is slowing down.

2

The cart is traveling East and is speeding up.

3

The cart is traveling West and is slowing down.

4

The cart is traveling West and is speeding up.

13

Multiple Choice

A car is moving at a constant velocity of 20 m/s when the driver hits the brakes because she sees an animal run across the street in front of the car. If the car experiences an acceleration of -2.5 m/s2 and the driver brakes for 2 seconds before taking her foot off the brake pedal, how fast will the car be moving after braking?

1

15 m/s

2

17.5 m/s

3

22.5 m/s

4

25 m/s

14

Multiple Choice

A coin is dropped from the top of a tall building. Assuming air resistance is negligible, how fast would the coin be moving after 6 seconds of falling?

1

0 m/s

2

30 m/s

3

60 m/s

4

120 m/s

15

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16

Multiple Choice

Question image

Identical spheres are released from a device at time t = 0 from the same height H, as shown above. Sphere A has no initial velocity and falls straight down. Sphere B is given an initial horizontal velocity of magnitude v0 and travels a horizontal distance D before it reaches the ground. The spheres reach the ground at the same time tf, even though sphere B has more distance to cover before landing. Air resistance is negligible. Which statement below best explains why both spheres hit the ground at the same time?

1

Since air resistance is negligible, the only force acting on the spheres is gravity, which means the spheres will fall with a constant rate of acceleration.

2

Sphere A and Sphere B are released at the same time from the same height, thus they will hit at the same time.

3

The horizontal component of velocity has no effect on the vertical component of velocity.

4

All the statements above are correct.

17

Multiple Choice

Question image

A ball is thrown off an 8 m cliff with a horizontal speed of 5 m/s and falls a distance of d away from the cliff and takes a time of t to fall. If the initial horizontal speed is doubled, what would happen to the distance the ball traveled from the cliff?

1

d

2

d/2

3

2d

4

4d

18

Multiple Choice

Question image

A ball is thrown off an 8 m cliff with a horizontal speed of 5 m/s and falls a distance of d away from the cliff and takes a time of t to fall. If the initial horizontal speed is doubled, what would happen to the time the ball takes to fall from the cliff?

1

t

2

t/2

3

2t

4

4t

19

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20

Multiple Choice

A projectile is launched over level ground so that its initial velocity has components (vx = 20 m/s, vy = 30 m/s). Ignore the effects of air resistance. How much time elapses before the projectile strikes the ground? (Note use g = 10 m/s2)

1

2 sec

2

3 sec

3

4 sec

4

6 sec

21

Multiple Choice

A projectile is launched over level ground so that its initial velocity has components (vx = 20 m/s, vy = 30 m/s). Ignore the effects of air resistance. What is the projectile's speed at the instant it reaches its maximum height above the ground?

1

0 m/s

2

30 m/s

3

20 m/s

4

50 m/s

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