Module 2, Lesson 3 Acceleration

Multiple Choice

Which term describes the speed and direction of a moving object?

• Acceleration

• Velocity

• Momentum

• Force

Multiple Select

Which of the following statements are true about acceleration?

• Acceleration is the rate of change of velocity.

• Acceleration and velocity are always in the same direction.

• Acceleration can occur when an object changes direction.

• Acceleration only happens when an object speeds up.

Open Ended

Explain how acceleration and velocity are related when an object is speeding up versus slowing down.

Fill in the Blanks

A speed-time graph can describe the

of an object traveling in a straight line.

Open Ended

Describe how to find an object's change in velocity.

Multiple Choice

What is the SI unit of acceleration?

• m/s

• m/s²

• km/h

• N

Multiple Choice

A roller coasters accelerates from an initial speed of 6.0 m/s to a final speed of 70 m/s over 4 seconds. What's the acceleration?

• 24 m/s²

• 18 m/s²

• 16 m/s²

• 16 m/s

Multiple Select

Select all the conditions in which a car is accelerating.

• The car slows from 80 km/h to 35 km/h.

• The car turns a corner.

• A car moves at 80 km/h on a flat, straight highway.

• The car speeds up from 35 km/h to 80 km/h.

Open Ended

How do you know an object is accelerating?

Multiple Choice

A car accelerates from a standstill to 70 m/s in 10 seconds.  What is the acceleration?

• 0.7m/s²
• 7m/s²
• 14m/s²
• none of the above

Multiple Choice

A dog runs with an initial speed of 7.5 m/s on a waxed floor.  It slides to a stop in 15 seconds.  What is the acceleration?

• -7.5 m/s
• -7.5 m/s²
• -0.5 m/s²
• 7.5 mi//hr

Open Ended

What is one question you still have about acceleration or how it affects motion?