Exploring Kinetic Energy: Mass and Velocity Calculations

What is kinetic energy?

• Energy from nuclear reactions

• Energy of motion

• Energy stored in an object

• Energy from chemical reactions

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Which of the following objects has kinetic energy?

• A compressed spring

• A book on a shelf

• A moving car

• A stationary rock

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What two factors does an object's kinetic energy depend on?

• Mass and temperature

• Mass and height

• Mass and velocity

• Velocity and height

What is the formula for calculating kinetic energy?

• Mass times velocity

• Half the mass times velocity squared

• Mass times velocity squared

• Half the mass times velocity

If an object has a mass of 100 kg and a velocity of 50 km/h, what is its kinetic energy?

• 125,000 joules

• 250,000 joules

• 500,000 joules

• 1,000,000 joules

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How does doubling the mass of an object affect its kinetic energy, assuming velocity is constant?

• Kinetic energy is halved

• Kinetic energy is doubled

• Kinetic energy remains the same

• Kinetic energy is quadrupled

If the mass of an object is 200 kg and the velocity is 100 km/h, what is its kinetic energy?

• 125,000 joules

• 250,000 joules

• 500,000 joules

• 1,000,000 joules

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NGSS.HS-PS3-1

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How does increasing the speed of an object affect its kinetic energy, assuming mass is constant?

• Kinetic energy increases linearly

• Kinetic energy decreases

• Kinetic energy increases by the square of the speed factor

• Kinetic energy remains the same

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If the speed of an object is doubled, how does its kinetic energy change?

• It doubles

• It remains the same

• It triples

• It quadruples

What is the relationship between kinetic energy and speed?

• Directly proportional but not linear

• Not related

• Inversely proportional

• Directly proportional and linear

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