Law of Conservation of Energy (Grade 9)

Energy transformations does not happen in a projectile motion.

• true

• false

Tags

NGSS.MS-PS3-5

Energy can change from one form to another, but the total amount of energy never changes.

• true

• false

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NGSS.MS-PS3-5

NGSS.MS-PS3-4

Stored energy due to position is called (a)   .

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NGSS.MS-PS3-2

_________is the result of the combined position and motion of an object.

• potential energy

• kinetic energy

• gravitational energy

• mechanical energy

Tags

NGSS.MS-PS3-1

________ is the energy possessed by an object because of its motion.

• mechanical energy

• gravitational energy

• potential energy

• kinetic energy

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NGSS.MS-PS3-5

NGSS.MS-PS3-1

The Law of Conservation of Energy states that:

• Energy can be created, destroyed, but not transformed.

• Energy can't be created, destroyed, or transformed.

• Energy cannot be created or destroyed; it can only be transformed.

• Energy can be created and destroyed.

Tags

NGSS.MS-PS3-5

When you stretch a rubber band, you are storing __________ energy. 

• kinetic 
• potential
• none of the above
• all of the above 

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NGSS.MS-PS3-2

The sum of potential energy and kinetic energy equals ________.

• work

• transformation

• total energy

• mechanical energy

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NGSS.MS-PS3-4

What is kinetic energy?

• The energy an object has due to its motion.

• The energy an object has due its chemical composition.

• The energy an object has due to its atomic structure.

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NGSS.MS-PS3-5

NGSS.MS-PS3-1

When does an object have NO kinetic energy?

• When it's at rest.

• When it's moving very slowly.

• When it has no electrical charge.