Thermal Energy

Conduction can only occur between two objects when –

• one object is less dense than the other.

• one of the objects is made of a metal.

• both objects are in physical contact with each other.

• both objects are exactly the same temperature.

Look at the picture provided. In the situation illustrated, how will heat energy move? Heat energy will be transferred from –

• the water to the hot plate by convection.

• the water to the hot plate by conduction.

• the hot plate to the water by convection.

• the hot plate to the water by conduction.

Tags

NGSS.MS-PS3-4

Which of the following is an example of a situation in which an egg is receiving thermal energy through convection?

• The egg is kept warm by its mother in the nest

• An egg cracked on a hot sidewalk starts to cook

• A metal pan on the stove fries the egg

• The egg is hard boiled in a pot of water

Three metal cubes with different temperatures are placed side-by-side as shown in the picture provided. Which of the following describes a way in which heat energy will be transferred by conduction.

• Sample 2 to Sample 3

• Sample 3 to Sample 1

• Sample 3 to Sample 2

• Sample 1 to Sample 2

All matter is made up of atoms that are constantly moving

• True

• False

Tags

NGSS.MS-PS3-1

Hot things have ____________ thermal energy than cold things

• more

• less

• same

• potato

Tags

NGSS.MS-PS1-4

Law of Conservation of Mass says...

• Energy is always created and destroyed

• Energy is only in hot things

• Energy can be destroyed easily

• Energy cannot be created or destroyed

Tags

NGSS.MS-PS1-5

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Conduction is...

• Transfer of thermal energy through circulation of fluids or gases.

• Transfer of thermal energy through direct contact.

• Transfer of thermal energy through empty space by waves

• Measure of the average kinetic energy of the atoms in a substance.

Tags

NGSS.MS-PS3-3

Convection is...

• Transfer of thermal energy through circulation of fluids or gases.

• Transfer of thermal energy through direct contact.

• Transfer of thermal energy through empty space by waves

• Measure of the average kinetic energy of the atoms in a substance.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

Radiation is...

• Transfer of thermal energy through circulation of fluids or gases.

• Transfer of thermal energy through direct contact.

• Transfer of thermal energy through empty space by waves

• Measure of the average kinetic energy of the atoms in a substance.

Tags

NGSS.MS-PS3-4