Which scenario best illustrates the conversion of kinetic energy to gravitational potential energy?

• A ball rolling down a hill

• A stationary ball at the top of a hill

• A ball rolling uphill

• A ball resting on the ground

Tags

NGSS.MS-PS3-5

What is the correct formula to calculate mechanical energy?

• Potential energy + Kinetic energy
• Potential energy - Kinetic energy
• Potential energy × Kinetic energy
• Potential energy ÷ Kinetic energy

Where does a roller coaster have the least potential energy?

• At the highest point of its path

• Just after taking off

• When it is halfway up the first hill

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NGSS.MS-PS3-2

Which object possesses the greatest kinetic energy?

• A 1 kg ball moving at 10 m/s

• A 2 kg ball moving at 5 m/s

• A 10 kg ball moving at 1 m/s

• A 0.5 kg ball moving at 20 m/s

Tags

NGSS.MS-PS3-1

At what point in a pendulum's swing is kinetic energy at its maximum?

• At the lowest point of the swing

• At the highest point of the swing

• In the middle of the swing

• Kinetic energy is constant throughout

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

What factor will most greatly enhance the kinetic energy of a moving object?

• Reducing the mass by half

• Increasing the speed by two times

• Increasing the mass by two times

• Reducing the speed by half

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which scenario is an example of energy transfer?

• A heater warming a room

• A ball sitting still on the ground

• A roller coaster sitting on the top of a hill

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

How does energy differ from work?

• Energy is the ability to do work
• Work is the ability to create energy
• Energy and work are the same
• Energy is always greater than work

A 50 kg woman and a 30 kg man are in their own cars that have a mass of 25 kg. Their cars are both moving at 3 m/s. Which person has more kinetic energy?

• The 50 kg woman

• The 30kg man

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

A truck doubles its mass by loading rocks but maintains its speed. How does its kinetic energy change?

• It doubles
• It halves
• It remains the same
• It quadruples

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5