Law of Conservation of Energy

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-PS3-2

NGSS.MS-PS3-5

Energy cannot be destroyed.

• True 
• False

Tags

NGSS.MS-PS3-5

Energy can be created.

• True
• False

When something is dropped, what type of energy transfer takes place?

• Kinetic -> Potential
• Gravitational Potential -> Kinetic -> Sound
• Electrical -> Chemical
• Heat -> Nuclear

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5

Imagine dropping a basketball. When would it have the most gravitational potential energy?

• When it is closest to the ground
• When it is at the highest point
• When it is halfway down
• It has the same amount of gravitational PE at all points

Tags

NGSS.MS-PS3-2

During photosynthesis, what type of energy transfer takes place?

• Heat -> Chemical Potential
• Chemical Potential -> Light
• Light -> Chemical Potential
• Heat -> Light

Tags

NGSS.MS-LS1-6

Food has _______ potential energy that our bodies transform into kinetic energy.

• Elastic
• Nuclear 
• Gravitational
• Chemical

Tags

NGSS.MS-LS1-7

Roller coasters slow down because their energy disappears.  

• True 
• False

Tags

NGSS.MS-PS3-5

Identify the correct energy transformation for the image below.

• Elastic --> Kinetic --> Sound

• Thermal --> Potential --> Gravitational

• Kinetic --> Gravitational --> Sound

• Sound --> Elastic --> Kinetic

Tags

NGSS.HS-PS3-3

NGSS.HS-PS4-5

What is the energy transformation that occurs in an electric pencil sharpener?

• mechanical energy → electrical energy

• electrical energy → kinetic energy

• radiant energy → sound energy

• chemical energy → kinetic energy

Tags

NGSS.HS-PS3-3