Energy

What does heat represent?

• Average energy of particles in an object

• Total thermal energy of vibrating particles

• Direction of energy transfer

• Energy stored in an object

Tags

NGSS.MS-PS3-4

Which unit is used to measure heat?

• Celsius

• Kelvin

• Joules

• Watts

What is temperature a measure of?

• Total energy in an object

• Average energy of particles in an object

• The direction of heat transfer

• Energy stored in particles

Tags

NGSS.MS-PS3-4

What principle states that energy cannot be created or destroyed?

• Energy transfer

• Energy conservation

• Energy dissipation

• Thermal transfer

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What is energy dissipation?

• Energy transfer through particles

• Energy becoming less useful and spreading out

• Energy storage in an object

• Energy flowing through convection currents

Which method of heat transfer occurs most effectively in solids?

• Radiation

• Conduction

• Convection

• Evaporation

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

What is the role of free electrons in metals during conduction?

• They block energy transfer

• They slow down energy dissipation

• They aid in transferring heat

• They create convection currents

Tags

NGSS.MS-PS3-4

What are insulators?

• Materials that conduct heat well

• Materials that slow the conduction of heat

• Materials that radiate energy

• Materials used in convection processes

Tags

NGSS.MS-PS3-3

Which materials are considered insulators?

• Metals and water

• Wood and plastic

• Copper and iron

• Glass and mercury

Tags

NGSS.MS-PS3-3

What happens during convection?

• Heat is transferred through electromagnetic waves

• Heat is transferred through vibrating particles

• Heated particles move, creating currents

• Energy dissipates to the surroundings

Tags

NGSS.MS-ESS2-6

NGSS.MS-PS1-4