Thermal Energy

What is the difference between temperature and thermal energy?

• Temperature is the average kinetic energy of molecules in a substance, and thermal energy is the sum of kinetic and potential energy of all the molecules in a substance

• Thermal energy is the average kinetic energy of molecules in a substance, and temperature is the sum of kinetic and potential energy of all the molecules in a substance

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

If you have a large and a small glass of juice, both at room temperature, which one has more thermal energy?

• Small glass

• Large glass

___________ is the transfer of heat through the movement of a fluid such as water or air.

• radiation

• convection

• conduction

• sublimation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What kind of heat transfer happens in a microwave?

• convection

• conduction

• sublimation

• radiation

When you lick a Popsicle, how does the thermal energy travel between the Popsicle and your tongue? What kind of heat transfer is that?

• Heat travels from warmer to cooler objects, conduction

• Heat travels from cooler to warmer objects, conduction

• Heat travels from warmer to cooler object, convection

• Heat travels from cooler to warmer objects, convection

• Heat travels from warmer to cooler object, radiation

What is the formula to convert Celsius to Kelvin?

• 
• 
• 
• 

Thermal energy always moves from ______ to _______ energy

• medium to high

• low to high

• medium to low

• high to low

When an object heats up, it _______________.

When an object cools down it, _____________.

• Expands

  Contracts

• Has less energy

  Has more energy

• Contracts

  Expands

• Turns red

  Turns blue

Tags

NGSS.MS-PS1-4