Kinetic

If all objects are moving as the exact same speed, which would have the greatest kinetic energy?

• tennis ball

• football

• notebook

• box of 20 textbooks

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NGSS.MS-PS3-1

Increasing an object's mass will increase its kinetic energy.

• true

• false

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NGSS.MS-PS3-1

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energy of motion

• kinetic energy

• potential energy

• movement

• work

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the quantity or strength of an object's motion; mass x velocity

• speed

• force

• energy

• momentum

A 65,000 kg train travels to New York at 24 m/s. What is the train's Kinetic Energy?

• 2708.9 m/s

• 65,000 kg

• 24 m/s

• 18,720,000 J

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What is the unit for KE?

• Joules (J)

• Kilograms (kg)

• Meters (m)

• Meters per Second (m/s)

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NGSS.MS-PS3-1

What is the formula for Kinetic Energy?

• S = d / t

• KE = 1/2 * m * v2

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A 1 kg bird flies south at 4 m/s. What is its KE?

• 2 m/s

• 8 J

• 2 J

• 4 J

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NGSS.MS-PS3-1

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A 1,000 kg sports car drives straight at a speed of 200 m/s. How much KE does it have?

• 40,000,000 J

• 20,000,000 J

• 2,000 J

• 1,000 J

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NGSS.MS-PS3-1

Which of the following statements best explains the relationship between the kinetic energy of the ball and its speed?

• The kinetic energy of the ball increases over time as the ball travels at a constant speed.

• The kinetic energy of the ball increases as its speed increases.

• The kinetic energy of the ball decreases as its speed increases.

• The kinetic energy of the ball remains the same as its speed increases.

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