Energy Conversion Review

A car uses the force of friction from its brakes to slow down, which causes the breaks to heat up. As the car slows down -

• A thermal energy from the brakes is converted to electrical energy

• thermal energy from the moving tires is converted to mechanical energy

• electrical energy from brakes is converted into mechanical energy

• mechanical energy from the moving tires is converted to thermal energy

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-3

NGSS.MS-PS3-5

Which of the following is an example of a transformation of chemical energy into electrical energy?

• An oil lamp lighting up a room

• A car battery making headlights shine

• Sunlight providing power to a solar calculator

• A blowtorch welding two pieces of metal together

Other than thermal energy, what type of energy is electrical energy mostly converted to in a toaster oven?

• light

• elastic

• chemical

• gravitational

When an electric lamp is turned on, electrical energy is -

• transformed

• destroyed

• created

• absorbed

At the South Texas Nuclear Power Plant, uranium atoms are split in order to create heat. The heat is used to make steam, which turns a generator to make electricity. What energy changes take place during this process?

• Nuclear energy to heat to mechanical energy to electrical energy

• Mechanical energy to nuclear energy to heat energy to light energy

• Chemical energy to nuclear energy yo electrical energy to heat energy

• Mechanical energy to heat energy yo chemical energy to electrical energy

A microwave transforms electrical energy into -

• sound energy, light energy, and heat energy

• sound energy and heat energy only

• heat energy only

• light and sound energy only

Which of these devices produces both light and sound?

Select THREE correct answers.

• fireworks

• guitar

• fire truck

• tuba

• iphone

When gasoline is burned in a car engine, ________ energy is converted into _________ energy.

• thermal, chemical

• chemical, potential

• mechanical, chemical

• chemical, mechanical

Tags

NGSS.MS-PS3-5

What energy conversion is taking place in this picture?

• solar energy to thermal energy

• thermal energy to chemical energy

• chemical energy to thermal and radiant (light) energy

Tags

NGSS.MS-PS3-5

When a frog eats an insect, digestion converts it into energy the frog can use to hop. What type of energy conversion is taking place?

• chemical to mechanical

• mechanical to chemical

• chemical to electromagnetic

• electromagnetic to chemical

Tags

NGSS.MS-LS1-7

NGSS.MS-PS3-5