Thermal Energy & Waves

This type of thermal energy transfer can take place in solids, liquids, & gases when two objects are touching.

• conduction

• convection

• radiation

Answer explanation

Conduction is the type of thermal energy transfer that can take place in solids, liquids, & gases when two objects are touching.

This type of thermal energy transfer can take place in gases only.

• conduction

• convection

• radiation

Answer explanation

Radiation is the type of thermal energy transfer that can take place in gases only, as it does not require a medium for propagation.

This type of thermal energy transfer can take place in fluids (liquids & gases). Rising of warmer fluid and sinking of cooler fluid forms a current.

• conduction

• convection

• radiation

Answer explanation

Convection is the correct choice because it involves the transfer of thermal energy in fluids through the movement of warmer fluid rising and cooler fluid sinking, creating a current.

The thermal energy transfer being shown in this image is...

• conduction

• convection

• radiation

Answer explanation

The thermal energy transfer shown in the image is radiation, as it involves the emission of heat energy in the form of electromagnetic waves.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The thermal energy transfer being shown in this image is...

• conduction

• convection

• radiation

Answer explanation

The thermal energy transfer shown in the image is conduction, as it involves the direct transfer of heat through a material without any movement of the material itself.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

The thermal energy transfer being shown in this image is...

• conduction

• convection

• radiation

Answer explanation

The thermal energy transfer shown in the image involves the movement of heat through a fluid, which is characteristic of convection.

Tags

NGSS.MS-PS3-4

If you added ice (0^oC) to a glass of water (15^oC) how would the heat move between the ice & water?

• from the ice to the water

• from the water to the ice

Answer explanation

The heat would move from the water to the ice as the water is at a higher temperature (15°C) than the ice (0°C), causing the ice to melt and reach thermal equilibrium.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

If you added a can of Coke (20^oC) to a fridge (5^oC), at what temperature would heat stop moving?

• when the coke is at 10 degrees and the fridge is at 5 degrees.

• When the coke is at at 6 degrees and the fridge is at 6 degrees

• When the coke is at at 5 degrees and the fridge is at 15 degrees

• When the coke is at at 20 degrees and the fridge is at 5 degrees

Answer explanation

Heat transfer stops when both the coke and fridge reach the same temperature, which is 6 degrees in this case.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

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

Answer explanation

The correct choice is 'Energy cannot be created or destroyed' as it aligns with the Law of Conservation of Mass.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

The amount of energy required to raise the temperature 1ºC for every kilogram is called____?

• Thermal Energy

• Specific Heat

• Temperature

• Kinetic Energy

Answer explanation

Specific Heat is the amount of energy required to raise the temperature 1ºC for every kilogram.