7P113

According to the Law of Conservation of energy, the amount of energy before and after a reaction must be the same. Which statement below is true?

• The total amount of energy is conserved

• The total amount of energy is less after a reaction

• The total amount of energy is more after a reaction

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

The rock in the picture is pushed over the edge and it begins to fall. Which type of energy conversion is taking place?

• mechanical to heat

• sound to mechanical

• potential to kinetic

• kinetic to potential

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

A ball is projected into the air. Where is potential energy the greatest?

• 
• 
• 
• 

Tags

NGSS.MS-PS3-2

Which point on the roller coaster's path represents the maximum potential energy?

• 
• 
• 
• 

Tags

NGSS.MS-PS3-2

List the steps of the scientific method

d

e

f

c

b

a

Form a hypothesis

Analyze results

Draw conclusions

Conduct experiment

Communicate results

Ask a question

Which letter represents amplitude? (a)  

• A

• B

• C

• D

• E

Tags

NGSS.MS-PS4-1

As a roller coaster goes downhill

• kinetic energy is converted into potential energy.

• potential energy is converted into kinetic energy.

• electrical energy is converted into potential energy.

• potential energy is converted into electrical energy.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Muscles convert chemical energy into

• light energy.

• nuclear energy.

• mechanical energy.

• electromagnetic energy.

A drawn bow possesses mechanical energy in the form of _______________. After the arrow is released, the energy is transformed into _________________.

• potential energy; mechanical energy

• elastic potential energy; kinetic energy

• gravitational potential energy; kinetic energy

• elastic kinetic energy; mechanical kinetic energy

Tags

NGSS.MS-PS3-5

The law of conservation of energy states that energy can neither be created nor destroyed - only converted from one form of energy to another.

• True

• False

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5