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4. This refers to the speed of an object at a specific moment in time,
A. Average Speed
B. Constant Speed
C. Instantaneous Speed
D. Zero Speed
5. If a person runs 100 meters in 10 seconds, what is his average speed?
A. 2 m/s
B. 5 m/s
C. 10 m/s
D. 20 m/s
6. A car traveling in a circle has changing velocity because it is
A. not traveling at a constant speed B. not traveling in a constant direction C. traveling too slowly to measure its velocity
D. traveling in a constant direction at a constant speed 7. This refers to the rate of change in velocity of an object.
A. Acceleration
B. Motion
C. Speed
D. Velocity​