Law of Conservation of Energy

@MsBduncan

Content Objective: I will demonstrate energy
transformations such as battery changes
from chemical to electrical to light energy (flashlight)

Language Objectives: I read, take notes, and answer questions in a Quizziz about the law of conservation of energy.

​NRG

​Write this in your notebook:

The Law of Conservation of Energy:

Energy cannot be created or destroyed, but can be converted to different forms.

Multiple Choice

Is this statement True or False ?

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

​In the picture, the Energy converts from mechanical to thermal

Examples of Energy Transfer

​Write in your notebook:

On the next slide there are some examples of energy transfer.
Write 5 detailed examples in your notebook.

Examples of

Energy

Transformation

Multiple Choice

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

What type of energy transformation happens when you put gas in a car?

• Chemical-to mechanical energy

• Potential - kinetic

• Electrical - thermal

• nuclear - electrical

​Let's observe this flashlight...

What are the energy transformations that you see?

Discuss with your partner....

Open Ended

Tell me in your own words what energy transformations you observe in the illustration

Multiple Choice

Observing only the mixer what energy transformation do you observe?

• Electrical - to mechanical and then heat

• Electrical to chemical then nuclear

• Chemical to Electrical to Heat

• Sound- Electric- Heat

Multiple Choice

The lamp's Energy tranformation are the following:

• Electrical to radiant to light then heat

• Radiant to Electrical to Heat then light

Multiple Choice

What energy transformation do you observe in this image?

• Mechanical to Chemical to thermal

• Electrical to thermal from the sunlight

• Radiant to Chemical - mechanical energy

• Radiant to mechanical to

Multiple Choice

Look at the image what energy transformation does a tree experience?

• Chemical energy to thermal energy

• Mechanical energy to Sound Energy

• Radiant energy to Chemical energy

• Electrical energy to chemical energy

Multiple Choice

What energy transformation is occuring in this illustration?

• Potential to Electrical

• Mechanical energy to Heat Energy

• Chemical energy to Electrical Energy

• Sound energy to Chemical Energy

Multiple Choice

What energy transformations happen with a car?

• Chemical - mechanical - heat

• Nuclear- mechanical - heat

• Radiant- Nuclear- mechanical

• Mechanical - nuclear- mechanical

Multiple Choice

What form of energy is used to make this toaster work?

• Nuclear energy

• Radiant Energy

• Kinetic Energy

• Electric Energy

Multiple Choice

What are the energy transformations that occur with the toaster oven?

• Radiant - heat - light

• Sound - thermal - heat

• Chemical - light- heat

• Electrical - thermal

Match

Match the following

Radiant Energy

Chemical Energy

Sound Energy

Thermal Energy

Nuclear Energy

• Radiant Energy

• Chemical Energy

• Sound Energy

• Thermal Energy

• Nuclear Energy

Poll

How do you feel about today's lesson

• Im not sure I understand it

• I think I get it but need more practice

• I did good I am happy

• I am very happy this is easy