Understanding Velocity and Acceleration

What is the definition of velocity?

• The rate of change of distance with respect to time.

• The rate of change of speed with respect to time.

• The rate of change of displacement with respect to time.

• The rate of change of acceleration with respect to time.

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DOK Level 1: Recall

What is the definition of acceleration?

• The rate of change of velocity with respect to time.

• The rate of change of distance with respect to time.

• The rate of change of speed with respect to time.

• The rate of change of displacement with respect to time.

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DOK Level 1: Recall

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

• 10 m/s

• 20 m/s

• 15 m/s

• 25 m/s

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DOK Level 1: Recall

A car accelerates from rest to 20 m/s in 4 seconds. What is its acceleration?

• 4 m/s²

• 5 m/s²

• 6 m/s²

• 7 m/s²

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DOK Level 1: Recall

Which of the following graphs represents constant velocity?

• A straight line with a positive slope.

• A curved line.

• A horizontal line.

• A straight line with a negative slope.

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DOK Level 1: Recall

Which of the following graphs represents constant acceleration?

• A straight line with a positive slope.

• A curved line.

• A horizontal line.

• A straight line with a negative slope.

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DOK Level 1: Recall

If a cyclist increases their speed from 5 m/s to 15 m/s in 5 seconds, what is their acceleration?

• 1 m/s²

• 2 m/s²

• 3 m/s²

• 4 m/s²

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DOK Level 1: Recall

A train moves with a constant velocity of 30 m/s for 10 seconds. How far does it travel?

• 200 meters

• 300 meters

• 400 meters

• 500 meters

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DOK Level 1: Recall

What is the unit of velocity?

• m/s²

• m/s

• m

• s

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DOK Level 1: Recall

The three vehicles shown below are all traveling at a speed of 15 m/s, but only the pickup truck has a changing velocity. The pickup truck has a changing velocity because the pickup truck —

• can accelerate faster than the other two vehicles
• can accelerate faster than the other two vehicles
• is traveling on a curve in the road
• needs a large amount of force to move