Motion Quiz : Help me i have 80 more questions i have to finish by tonight!!!!
1. The term motion means to continuously change position relative to a reference point.
a. True
b. False
2. The speed of a runner is clocked 60 seconds after the beginning of a race. At this point in time the runner is moving at 6 miles per hour at 60 seconds into the race is the runners ____.
a. Instantaneous speed
b. average velocity
c. acceleration
3. When motion IS changing directions, acceleration is the rate at which _____ changes, but when motion is NOT changing direction, acceleration may be expressed as the rate at which ______ changes.
a. Speed, Time
b. Velocity, Speed
c. Elapsed Time, Average Speed
4. A runner runs 10 miles in 1 hour, her average speed per minute is 1 mile.
a. True
b. False
5. Two objects can have the same speed but different velocities.
a. True
b. False
6. If a runner runs at 6 miles per hour, she can cover one half of a mile in 5 minutes.
a. True
b. False
7. Use the 1st graph shown to answer the question:
What is the average velocity of the object represented by the graph.
a. 1 km/hr
b. 5 km/hr
c. 30 km/6 hr
8. use the 2nd graph shown to answer the question:
Study the graph. Which of the following statements is true about this graph?
a. An object is accelerating
b. An object is traveling at a constant velocity
c. An object is in free fall
9. Use this graph to answer the question:
What is the maximum velocity depicted on the graph?
a. 10cm/s
b. 13cm/s
c. 20cm/s
10. Imagine a rock is dropped from the top of a tall building. After 2 seconds of falling, the rocks instantaneous speed is approximately 20m/s.
a. True
b. False