Exploring Speed, Velocity, and Acceleration Concepts

What is required to determine if motion has occurred?

• A stopwatch

• A reference point

• A measuring tape

• A speedometer

How can an object be at rest and in motion at the same time?

• By moving in a circle

• By being carried by another moving object

• By being stationary

• By changing its shape

Which of the following is a unit of speed?

• Meters per second

• Kilometers per hour

• Miles per hour

• All of the above

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What distinguishes velocity from speed?

• Velocity is measured in different units

• Velocity is only used for cars

• Velocity is always faster

• Velocity includes a direction

If a bird flies south at 20 meters per second, what is this an example of?

• Distance

• Velocity

• Acceleration

• Speed

What is the formula for acceleration?

• Distance times time

• Initial velocity plus final velocity, divided by time

• Final velocity minus initial velocity, divided by time

• Distance divided by time

Which of the following is NOT needed to calculate speed?

• None of the above

• Time

• Distance

• Direction

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What is the unit for acceleration?

• Meters per second squared

• Kilometers per hour

• Meters per second

• Miles per hour

In a distance vs. time graph, what does a straight line indicate?

• Acceleration

• Constant speed

• Deceleration

• Changing speed

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If the slope of a distance vs. time graph is decreasing, what does it indicate about the speed?

• Speed is increasing

• Speed is constant

• Speed is decreasing

• Speed is zero

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