2.2 Speed and Velocity Review

Which of the following is true about distance?

• It is a vector quantity

• It can be negative

• It measures the total path length traveled

• It measures straight-line distance

In the example of walking around a square 400 m track right back to where you started, what is the displacement?

• 400 meters

• 200 meters

• 0 meters

• 100 meters

What is the distance traveled by the object from point A to point B if each box is 1.0 meter?

• 2 meters

• 24 meters

• 12 meters

• 6 meters

What is the formula for calculating speed?

• Speed = Distance × Time

• Speed = Distance ÷ Time

• Speed = Time ÷ Distance

• Speed = Distance + Time

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Which of the following is a characteristic of velocity but not speed?

• Measured in meters per second

• Scalar quantity

• Includes direction

• Measured in kilometers per hour

If a car travels 100 meters in 20 seconds, what is its speed?

• 2 m/s

• 5 m/s

• 10 m/s

• 20 m/s

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Why is velocity considered a vector quantity?

• It only has magnitude

• It includes both magnitude and direction

• It is always positive

• It is measured in kilometers per hour

Which statement is true regarding speed and velocity?

• Speed and velocity are the same

• High speed always means large displacement

• Direction matters for velocity, not for speed

• Distance traveled is always less than displacement

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Two runners are running around a track in different directions. The runners can have the same ​ (a)   but they will not have the same ​ (b)   .

• speed
• velocity

Answer explanation

Velocity is speed in a specific direction. The two runners are running at the same speed, but different velocities because they are running in different directions.

A vehicle travels 2345 m in 315 s. What is its speed?

• 7.44 m/s

• 0.13 m/s

• 738,675 m/s

• 7.44m

Tags

NGSS.MS-PS3-1