CK-14.5 - Energy Conversion

Most electrical energy comes from ______________

• the burning of fossil fuels

• the burning of wood

Fossil Fuels Contain ___________

• fossilized wood

• stored chemical energy

When fossil fuels are burned, the chemical energy changes to _______________

• kinetic energy

• thermal energy

Tags

NGSS.MS-PS1-4

thermal energy is used to generate

• electrical energy

• kinetic energy

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Energy conversion is the process in which

• one kind of energy stays the same

• one kind of energy changes into another kind

• one kind of energy is used and no longer exists

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

When energy changes in this way, is the energy used up or lost?

• Yes

• No

Tags

NGSS.MS-PS3-5

The fact that energy isn't lost when it is changed is because of __________________

• The law of Conservation of Energy

• The law of Kinetic Energy

• The law of thermal energy

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

The Law of Conservation of Energy states that __________

• Energy can be created but not destroyed

• Energy cannot be created or destroyed

• Energy cannot be created but can be destroyed.

Tags

NGSS.MS-PS3-5

The forms of energy include chemical and _____________ (select all that apply)

• Thermal Energy

• Fossil Energy

• Kinetic Energy

• Mechanical Energy

• Electrical Energy

Tags

NGSS.MS-PS3-5

A popcorn machine is an example of changing electrical energy to ____________ energy

• thermal

• sound

• mechanical