Speed, Velocity, and Acceleration Notes Quiz

Match each term with its definition

• a value with size and direction

• vector

• how quick an object moves

• speed

• a value with size but no direction

• velocity

• includes speed and direction

• scalar

• straight-line distance between 2 points

• displacement

If you traveled 80 kilometers in 2 hours, what is your average speed?

• 30 km/h

• 40 km/h

• 50 km/h

• 60 km/h

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How is velocity different from speed?

• Velocity is a scalar quantity while speed is a vector quantity.

• Velocity is a vector quantity while speed is a scalar quantity.

• Velocity and speed are both scalar quantities.

• Velocity and speed are both vector quantities.

What are the SI units for velocity?

• Meters per second

• Kilometers per hour

• Miles per hour

• Feet per second

Does the speedometer in your car give your speed or velocity?

• Speed

• Velocity

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The SI unit of acceleration is:

• Meter per second

• Meter per second squared

• Newton

• Joule

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In what situation are a car’s velocity and acceleration in opposite directions?

• When the car is speeding up.

• When the car is moving at a constant speed.

• When the car is slowing down.

• When the car is stationary.

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Why do we feel motion when we are in a car but not when we are sitting on a chair in a room?

Because the (a)   is moving and our body senses (b)   .

• car
• acceleration
• room

• velocity

Which of the following would cause a change in velocity?

• speeding up

• slowing down

• changing direction

• constant speed

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In the image, each dot represents the position of an object every second as it moves from left to right.

Which object(s) are traveling at constant velocity?

• A

• B

• C

• D