Conduction & Convection

Heat is also known as .....

• thermal energy

• power

• gravitational potential energy

• elastic potential energy

Thermal energy is transferred from ________ temperature to _____________ temperature.

• lower, higher

• higher, lower

• same, same

• higher, higher

Which of the following is NOT a means of thermal energy transfer?

• conduction

• boiling

• radiation

• convection

If a material conducts heat well, it is known as a _______

• conductor

• insulator

• generator

• incubator

In conduction, when one part of the object is heated, the particles ________

• vibrate more vigorously, collide with adjacent particles and transfer energy

• vibrate more slowly and transfer energy

• expand due to the heat and allow the hotness to flow.

• flow from one of the object to other.

When the objects in contact are in __________________, there is no heat transfer.

• thermal equilibrium

• stable equilibrium

• unstable equilibrium

• neutral equilibrium

Metals are better conductors because they have the following mechanisms of conduction:

• molecular vibration

• free electron diffusion

• molecular vibration & free electron diffusion

In a liquid, the main method of thermal energy transfer is ....

• conduction

• convection

• radiation

Conduction is a process through which thermal energy is transferred ________.

• through the collisions of adjacent particles

• through electromagnetic radiation

• through movement of the medium

Convection is a process through which thermal energy is transferred ________.

• through the collisions of adjacent particles

• through electromagnetic radiation

• through movement of the medium