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- 1. Multiple ChoiceAn object can be moving for 10 seconds and still have zero displacement.TrueFalse
- 2. Multiple ChoiceAn airplane accelerates down a runway at 3.20 m/s/s
for 8 s until it finally lifts off the ground.
Determine the velocity at take-off.0.4 m/s25.6 m/s2.5 m/s - 3. Multiple Choice
At 60 seconds, how far had this object traveled?0 m10 m20 m40 m - 4. Multiple ChoiceDescribe the motionSlow to fast; Negative directionFast to slow; Negative directionFast to slow; Positive directionSlow to fast; Positive direction
- 5. Multiple Choice
This is the x-tgraph of the motion of a particle. Of the four points P, Q, R,and S, the velocity vx is greatest (most positive) at
P
Q
R
S
- 6. Multiple Choice
This is the x-tgraph of the motion of a particle. Of the four points P, Q, R,and S, the speed is greatest at
P
Q
R
S
- 7. Multiple Choice
This is the x-tgraph of the motion of a particle. Of the four points P, Q, R,and S, the acceleration ax is greatest (most positive) at
P
Q
R
S
- 8. Multiple Choice
You toss a ball straight upward, in the positive direction. The ball falls freely under the influence of gravity.
At the highest point in the ball’s motion,
its velocity is zero and its acceleration is zero.
its velocity is zero and its acceleration is positive (upward).
its velocity is zero and its acceleration is negative (downward).
its velocity is positive (upward) and its acceleration is zero.
its velocity is positive (upward) and its acceleration is zero.
- 9. Multiple Choice
This is a motion diagram of an object moving along the x-direction with constant acceleration. The dots 1, 2, 3, … show the position of the object at equal time intervals ∆t. Which of the following vx-tgraphs best matches the motion shown in the motion diagram?
- 10. Multiple Choice
An object moves along the x-axis with constant acceleration. The initial position x is positive, the initial velocity is negative, and the acceleration is positive.
Which of the following vx-t graphs best describes this motion?
- 11. Multiple ChoiceWhich graph represents zero acceleration (constant velocity)?ABCD
- 12. Multiple ChoiceIn the absence of air resistance, objects fall at constantspeedvelocityaccelerationall of the above
- 13. Multiple ChoiceA car is traveling at 21.0 m/s. It slows to a stop at a constant rate over 5.00 s. How far does the car travel during those 5.00 seconds before it stops?4.20 m52.5 m105 m158 m
- 14. Multiple Choice
A golf ball starts with a speed of 2 m/s and slows at a constant rate of 0.5 m/s2, what is its velocity after 2 s?
0 m/s
0.5 m/s
1 m/s
3 m/s
- 15. Multiple Choice
A ball is thrown downward from the top of a roof with a speed of 25 m/s. After 2 s, its velocity will be:
(Choose upward as positive)
19.6 m/s
-5.4 m/s
-44.6 m/s
44.6 m/s
- 16. Multiple Choice
A hacky sack is thrown up into the air with an initial velocity 3 m/s. What is the hang time of the hacky sack if it returns to the same point from which it was thrown?
0.3 seconds
0.61 seconds
1.2 seconds
3.26 seconds
- 17. Multiple Choice
Which of the following is an example of a velocity?
35 meters East
22 m/s
40 mph West
12 m/s2
- 18. Multiple Choice
A hacky sack is thrown up into the air with an initial velocity 3 m/s. What maximum height does the hacky sack reach?
0.15 m
0.46 m
0.92
1.8 m
- 19. Multiple Choice
What is the acceleration of the object at t=5 seconds?
0 m/s2
4 m/s2
0.8 m/s2
1.25 m/s2
- 20. Multiple Choice
A bowling ball is dropped in a vacuum chamber. As it falls, the acceleration of the bowling ball
decreases
increases
remains the same
- Answer choicesTagsAnswer choicesTags