Test- Forces/Motion (Part I)
Forces and Motion Quiz
1. Which of the following is a true statement?
A. The earth is not considered a frame of reference since it is moving.
B. A frame of reference is usually in motion.
C. A frame of reference is usually not in motion.
D. Motion and speed are the same thing.
2. Speed and velocity differ because of which of the following?
A. Velocity depends on distance and time.
B. Speed depends on distance and time.
C. Velocity depends on direction.
D. Speed depends on direction.
3. What is your average speed if you take 0.5 h to jog 4,000m?
A. 8.0 m/h B. 80.0 m/h C. 8,000 m/h D. 800 m/h
4. Audrie is riding her bicycle. She is traveling at a constant 100 m/s!!!! She turns a curve in the road. Which of the following is a true statement?
A. Audrie’s velocity increased when she turned the curve.
B. Audrie’s speed changed when she turned the curve.
C. Audrie’s acceleration stayed the same.
D. Audrie’s acceleration changed.
5. Acceleration depends on which of the following?
A. change in velocity; time
B. distance; direction
C. speed; direction
D. none of the above
6. Which of the following is not a true statement?
A. If you slow down on your bicycle, you accelerate
B. If you ride your bicycle at a constant speed, you cannot accelerate.
C. Changing the speed and changing the direction of your bicycle are both examples of acceleration.
D. Acceleration is equal to distance divided by time.
7. Forces are measured in ______ .
A. Joules B. Newtons C. Pounds D. Grams
8. If an object has applied forces of 10 and 5 in the same direction, then what is its net force?
A. 5 B. 15 C. 25 D. 8
9. If this test paper is not in motion on your desktop, then which of the following is true?
A. The forces acting on the paper are unbalanced.
B. The applied forces must be equal.
C. The net force must equal o.
D. The forces are net forces.
10. Gravity is exerting a downward force on you. Your chair is exerting an upward force on you. Which of the following statements is true?
A. The force gravity exerts on you is greater than the force the chair exerts on you.
B. The force the chair exerts on you is greater than the force of gravity.
C. The applied forces must be equal to each other, even though they are in opposite directions.
D. The net forces must equal 0.
11. Turning the pages of a book, kicking a soccer ball, and a book falling off of the edge of a table are all examples of
A. balanced forces B. unbalanced forces C. gravity D. Newtons
12. If a bus is moving east at 15 m/s and you walk eastward at 5m/s, then you are moving with a velocity of
A. 5 m/s B. 15 m/s C. 10 m/s D. 20 m/s
13. You are riding your bike at 9 km/h. Ten minutes later your speed is 6 km/h. Which of the following statements is true?
A. Your direction changed.
B. Your velocity did not change.
C. Acceleration did not occur.
D. Acceleration occurred.
14. Which of the following is NOT an example of acceleration?
A. a person jogging at 3 m/s along a winding path
B. a car stopping at a stop sign
C. a cheetah running 27 m/s east
D. a plane taking off
15. _____ does not include direction; _____ does.
A. Speed; velocity
B. Velocity; speed
C. Acceleration; speed
D. Velocity; acceleration
16. An asteroid traveling 200 feet per second slows to 50 feet per second in 5 seconds. Calculate the acceleration of the asteroid.
17. A car going 50mph accelerates to pass a truck. Five seconds later the car is going 80mph. Calculate the acceleration of the car.
18. Carson was in big trouble at home for not cleaning his room and he was trying to escape the chat his mother was ready to have with him. He ran up the hallway that is 50m long in 30 seconds!!! What was Carson’s speed?
19. What is the average acceleration of a subway train that speeds up from 9.6 m/s to 12 m/s in 0.8s on a straight section of track?
20. Find the average speed of Adam, who swims 105 m in 70s.
21. A force of 20 N to the left and 30 N to the right was acting on a ball. In what direction and with what force will the ball roll (if at all)?
22. Two applied forces were acting on a toy car. One applied force is 5N to the right. The other applied force is 5N to the left. What is the net force on the car?
23. Laura accelerates her skateboard along a straight path from 0 m/s to 4.0 m/s in 2.5s. Find her average acceleration.
24. Find the average acceleration of a northbound subway train that slows down from 12 m/s to 9.6 m/s in 0.8 s.
25. Beth is traveling east on a dirt road when she spots a pothole ahead. She slows her car from 14 m/s to 5 m/s in 6 s. What is the car’s acceleration?
26. A dragster accelerated from stop to 60 m/s in 8 seconds. What was its total acceleration?
27. A plane took 150 minutes to fly from Boston to Chicago. The distance from Boston to Chicago is 183 miles. What is the speed of the plane?