Heat and Thermodynamics Test Review

What form of heat transfer is used to cook eggs in a skillet?

• Conduction

• Convection

• Radiation

• No thermal transfer

What form of heat transfer is used to keep a paraglider flying?

• Conduction

• Convection

• Radiation

• No thermal transfer

What form of heat transfer is used when you warm up next to a bonfire?

• Conduction

• Convection

• Radiation

• no thermal transfer

Tags

NGSS.HS-PS3-4

What type of heat transfer(s) occur when you are warming up next to a campfire. You get bored and start poking the fire with a stick, then you then you touch the end of the stick because it started glowing. Oh no, you burned yourself!

Pick all of the correct answers!

• Conduction

• Convection

• Radiation

Tags

NGSS.HS-PS3-4

Why is Thermal Energy also known as 'waste heat'?

• Thermal Energy is literally garbage

• Thermal Energy is produced as a byproduct to other forms of energy conversion (when you drop an object and convert energy from potential to kinetic, some of the energy gets lost as heat)

• Thermal Energy is not used for anything, and is usually wasted

Tags

NGSS.MS-PS3-5

What is entropy?

• Chaos or disorder

• Another word for energy

• Something that is changing shape

When temperature decreases, entropy

• increases

• decreases

• stays the same

• It's impossible to know

What is temperature a measure of?

• Total Heat

• Total Kinetic Energy of particles in a substance

• Average Kinetic Energy of particles in a substance

Tags

NGSS.HS-PS1-5

Usually over time, what happens to entropy?

(what happens to your bedroom if you don't pick up after yourself?)

• It increases

• It decreases

• It stays the same

• Not enough info

You put ice cubes in a glass of water inside a closed system (no energy escapes the system). What is happening to the entropy?

• The water gains as much entropy as the ice lost

• The water gains more entropy as the ice lost

• The water gains less entropy than the ice lost

• Not enough info

Tags

NGSS.HS-PS3-4