NOTES: Thermal Energy in Systems

What is thermal energy?

• Energy from the light of a substance

• Energy from the sound of a substance

• Energy from the heat of a substance

• Energy from the color of a substance

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

How is heat transferred in conduction?

• Through radiation

• Through direct contact of particles

• Through convection currents

• Through magnetic fields

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

In convection, what happens to cooler fluids?

• They rise

• They sink

• They evaporate

• They expand

What happens to the molecules in a fluid during convection?

• They become static

• They move in a circular pattern

• They freeze

• They evaporate

Tags

NGSS.MS-ESS2-6

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which of the following best describes the movement of molecules in convection?

• Linear

• Random

• Circular

• Stationary

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

What is radiation?

• Energy transmitted in waves or a stream of particles

• Energy stored in chemical bonds

• Energy that cannot travel through space

• Energy that only travels through liquids

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Which of these involves conduction?

• Placing a hand on a cold window

• Feeling the warmth of the sun

• Hearing a loud noise

• Smelling a flower

What type of heat transfer occurs when you feel the heat from a hot poker?

• Conduction

• Radiation

• Convection

• Evaporation

Tags

NGSS.MS-PS3-3

In a pot of boiling water, what happens to the macaroni?

• It stays at the bottom

• It rises and falls

• It dissolves

• It floats on top

Tags

NGSS.MS-PS1-4

Radiation can be felt when:

• Holding your hands over a light bulb

• Stirring hot soup

• Sitting on a heated seat

• Wearing a warm jacket

Tags

NGSS.MS-PS3-3