Checkpoint: Energy

What does energy transfer mean? (Choose 2)

• When energy moves from one object to another by contact
• When energy is created or destroyed
• When energy changes to different types

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NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-5

What type of energy is being represented in the picture below?

• kinetic energy
• potential energy
• sound energy

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NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

A chemical bond is what holds atoms ___________ in molecules.

• together
• apart
• differently

A coconut is falling from a palm tree. When does the coconut have the most gravitational energy?

• When the coconut is at Position 1
• When the coconut is at Position 2
• When the coconut is at Position 3
• The coconut has the same amount of gravitational energy at all the positions.

Tags

NGSS.MS-PS3-2

You place the tips of a vibrating tuning fork into a dish of water. What does this show?

• Sound cannot travel through liquids.
• Sound is produced at different pitches.
• Sound travels as waves in vibrating matter.

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NGSS.MS-PS4-2

What happens when chemical bonds are broken?

• Atoms become stronger.
• Atoms are created.
• Energy is released.
• Atoms are destroyed.

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NGSS.MS-PS1-5

Potential energy can be transferred, but cannot be transformed.

• True
• False

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NGSS.MS-PS3-2

Why does a dropped ball not return to its original height?

• Energy is destroyed
• Energy is transferred to other objects
• It's magic

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NGSS.MS-PS2-4

NGSS.MS-PS3-5

It is what makes things happen, why things stop, and why things keep going (work)!

• Force
• Chemical reaction
• Energy

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

Identify the energies present in a battery by selecting the correct energy transformations.

• Electrical Energy transformed to Chemical Energy
• Electrical Energy transformed to Sound Energy
• Chemical Energy transformed to Electrical Energy
• Chemical Reaction transformed to a new substance