Unit 4: Thermal Energy (I.6C & I.6D)

Front

What type of heat transfer occurs when your cat curls up next to a fire?

Back

Radiation

Front

How does conduction transfer heat?

Back

Heat transfers through molecular collisions.

Front

What is a closed system?

Back

A system in which the total amount of energy remains constant as energy conversions occur.

Front

Which type of system is insulated from its surroundings?

Back

An insulated system.

Front

Which mug represents an open system when one has a lid and the other does not?

Back

The mug without a lid.

Front

What is convection?

Back

Heat transfer by way of currents in fluids (liquids and gases).

Front

Define thermal energy.

Back

The total kinetic energy of particles in a substance.

Front

What is the difference between an open system and a closed system?

Back

An open system can exchange both energy and matter with its surroundings, while a closed system can only exchange energy.

Front

What is an example of conduction in everyday life?

Back

Touching a hot stove and feeling the heat transfer to your hand.

Front

What role does insulation play in thermal energy transfer?

Back

Insulation reduces heat transfer between systems.