Which object works by changing chemical energy to mechanical energy?

• 
• 
• 
• 

Which of the following energy transformations take place in a hair dryer?

• Electrical to thermal and sound

• Chemical to thermal and sound

• Electrical to chemical

• Radiant to electrical

The Law of Conservation of Energy states that ____.

• Energy is neither created nor destroyed

• Energy cannot be transformed

• Energy can be created

• Energy can be destroyed

Tags

NGSS.HS-PS3-3

NGSS.HS-PS3-4

The energy contained in the nucleus of atoms. _______________energy.

• Nuclear

• Chemical

• Radiant

• Electrical

• Thermal

Tags

NGSS.HS-PS1-8

Which energy transformation produces electricity without causing pollution?

• Burning natural gas in a power plant to transform heat energy into electricity.

• Using batteries in a flashlight to transform chemical energy into electricity.

• Spinning windmills to transform mechanical energy into electricity.

• Using coal in a grill to transform chemical energy into thermal.

What number in the picture does a roller coaster have the most potential energy?

• 1

• 2

• 3

• 4

• 5

Tags

NGSS.MS-PS3-2

This appliance dries clothes primarily by converting —

• electrical energy to heat and mechanical energy

• mechanical energy to heat and electrical energy

• electrical energy to heat and light

• mechanical energy to heat and vaporization

Tags

NGSS.MS-ETS1-1

A Steam Locomotive uses wood or coal, to create steam from water. This steam moves pistons, and thus, the train. Choose the best energy transformation below for a steam locomotive.

• Thermal --> Mechanical --> Chemical (plus heat)

• Chemical --> Thermal --> Mechanical (plus heat)

• Mechanical --> Chemical --> Thermal (plus heat)

• Electrical -> Chemical --> Thermal (plus heat)

Tags

NGSS.MS-PS3-5

What type of heat transfer is happening at "A"?

• conduction

• convection

• radiation

What type of heat transfer is happening at "B"?

• conduction

• radiation

• convection

Tags

NGSS.MS-PS1-4