Question 1

Which type of thermal energy transfer occurs without the need for a medium?

Accepted Answer

Radiation

Answer

Combustion

Answer

Convection

Answer

Conduction

Question 2

What is the term for the movement of heat through a fluid due to density differences?

Accepted Answer

Convection

Answer

Radiation

Answer

Insulation

Answer

Conduction

Question 3

What happens during a phase change from solid to liquid?

Accepted Answer

The substance absorbs thermal energy

Answer

The substance changes color

Answer

The substance becomes denser

Answer

The substance releases thermal energy

Question 4

Which of the following is an example of insulation?

Accepted Answer

A wool sweater

Answer

A ceramic plate

Answer

A metal cup

Answer

A glass window

Question 5

What happens to the thermal energy of a substance when it is heated?

Accepted Answer

Its particles move faster

Answer

It becomes colder

Answer

Its volume decreases

Answer

It changes color

Question 6

Which material is a good conductor of thermal energy?

Accepted Answer

Copper

Answer

Rubber

Answer

Wood

Answer

Plastic

Question 7

What is thermal energy?

Accepted Answer

The total energy of all the particles in an object

Answer

Energy that only comes from sunlight

Answer

Energy from electrical devices

Answer

The heat that is released by a fire

Question 8

Which process transfers thermal energy through direct contact?

Accepted Answer

Conduction

Answer

Radiation

Answer

Convection

Answer

Evaporation

Question 9

What is the primary way that thermal energy is transferred through liquids and gases?

Accepted Answer

Convection

Answer

Conduction

Answer

Radiation

Answer

Insulation

Question 10

What is an example of thermal energy transfer by radiation?

Accepted Answer

Feeling the warmth from the sun

Answer

Warm air rising from a heater

Answer

Boiling water on a stove

Answer

A metal spoon getting hot in soup

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