Physics Quiz: Distance, Speed, Velocity, and Acceleration

Which of the following best defines speed?

• The rate of change of position
• The distance traveled per unit of time
• The vector quantity that includes direction
• The change in velocity over time

If a car travels 100 meters in 5 seconds, what is its average speed?

• 20 m/s
• 25 m/s
• 50 m/s
• 15 m/s

What distinguishes velocity from speed?

• Velocity is a scalar quantity
• Velocity includes direction
• Velocity is always greater than speed
• Velocity is measured in kilometers

An object is moving in a circular path at a constant speed. What can be said about its velocity?

• It is constant
• It is changing
• It is zero
• It is equal to the speed

If a cyclist accelerates from rest to a speed of 10 m/s in 5 seconds, what is the cyclist's acceleration?

• 2 m/s²
• 5 m/s²
• 10 m/s²
• 0.5 m/s²