Quiz on 10a Speed, Velocity, Acceleration
- 1. Which of the following does not change acceleration?
A) constant velocity
B) slow down
C) change direction
D) speed up
- 2. Deceleration is a form of acceleration.
A) True
B) False
- 3. Tonya slows down as she bicycles up a hill. Is she accelerating?
A) No
B) Yes
- 4. A sailboat sails down the James River due South at exactly 15 mph for 1 hour. Is the sailboat accelerating?
A) No
B) Yes
- 5. A small child spins around and around on a merry-go-round. Is the child accelerating?
A) Yes
B) No
- 6. Acceleration is the change in velocity per unit -
A) time
B) velocity
C) speed
D) distance
- 7. Speed is the measure of the distance traveled per unit -
A) speed
B) time
C) velocity
D) distance
- 8. The formula for speed is -
A) speed = distance divided by time
B) speed = velocity divided by time
C) speed = acceleration divided by velocity
D) speed = time divided by distance
- 9. Which of the following is speed and direction of motion?
A) velocity
B) acceleration
C) motion
D) speed
- 10. A bus travels 200 kilometers north in 2.5 hours. What is the speed of the bus?
A) 0.0125 km/hr
B) 80 km/hr
C) 90 km/hr
D) 120 km/hr
- 11. A distance-time graph for acceleration is always --
A) pointed downward
B) a straight line
C) a curve
D) positive
- 12. It is possible for velocity to have a positive or negative value, depending on the direction of the change in position.
A) True
B) False
- 13. If the distance travelled is 100 meters, and the time is 50 seconds, then the speed is --
A) 100 m/s
B) 2 m/s
C) 200 m/s
D) 25 m/s
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