Energy & Force Review

Mila ate a banana as an afternoon snack and then decided to go for a run. She plugged some headphones into her phone so she could listen to music while she ran. A fitness magazine she read said that the food you eat is like a battery because it has energy. What kind of energy do bananas and batteries have?

• kinetic energy

• chemical energy

• elastic energy

• gravitational potential energy

Tags

NGSS.MS-LS1-6

NGSS.MS-PS3-5

What kind of energy does Mila have while she runs?

• gravitation potential energy

• kinetic energy

• electrical energy

• nuclear energy

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which best describes how energy transfers from one object to another while Mila runs?

• energy from the banana she ate transfers to Mila's muscles

• energy from Mila's muscles transfers to Mila's phone

• energy from the banana transfers to the music

• energy from the magazine transfers to Mila's brain

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NGSS.MS-PS3-4

NGSS.MS-PS3-5

Halfway through Mila's run, the music stopped playing.

She had a portable battery pack with her, so she plugged her phone into the battery pack, and the music started playing again. Then, Mila finished her run.

At what point during her run did Mila’s phone run out of energy?

• when the music stopped playing

• when she plugged her phone into the battery pack

• when the music started playing again

• when she finished her run

Mila had a portable battery pack with her, so she plugged her phone into the battery pack, and the music started playing again. Then, Mila finished her run.

Which best describes the energy transformation that caused the music to start playing again?

• chemical energy -> electric energy -> sound energy

• chemical energy -> kinetic energy

• chemical energy -> sound energy

• chemical energy -> electrical energy

After Mila plugged her phone into the battery pack, what happened to the amount of energy in the battery pack?

• increased

• decreased

• stayed the same

Tags

NGSS.MS-PS3-5

Energy of motion is which type of energy?

• Potential
• Kinetic
• Sound
• Gravitational

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NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Potential Energy due to an object's position above the Earth or height

• Gravitational 
• Magnetic 
• Electrical 
• Chemical 

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NGSS.MS-PS2-4

NGSS.MS-PS3-2

At which point(s) on the roller coaster is the kinetic energy at its maximum?

• A
• B
• C
• D

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NGSS.MS-PS3-1

NGSS.MS-PS3-4

What is the percentage of Potential Energy at point A? 

• 25%
• 50%
• 75%
• 100%

Tags

NGSS.MS-PS3-2