Thermal Energy (Temp, Thermal Energy, & Heat)

____ is the transfer of thermal energy from one object to another because of a temperature difference.

Tags

NGSS.MS-PS3-3

Heat is the transfer of ____ energy from one object to another because of a temperature difference.

• chemical

• electrical

• thermal

• mechanical

Tags

NGSS.MS-PS3-3

____ flows spontaneously from hot objects to cold objects.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Thermal Equilibrium

To read a thermometer, you must wait. Why?

The thermometer and surroundings reach a ____ temperature with the same average __ per particle.

• Common, PE

• different, PE

• different, KE

• common, KE

Tags

NGSS.HS-PS3-4

thermal equilibrium:

How much heat flow is between substances of the same temperature?

Tags

NGSS.MS-PS3-4

Thermal Equilibrium

You add exactly the same amount of heat energy to 1 L of water and to 2 L of water. The 1 L of water temperature rises by 2°C.By how much will the 2 L of water temperature rise?

_____ because there are twice as many molecules in 2 L of water and each molecule receives only half as much energy on average.

• Temp will rise by 2°C,

• Temp will rise by 1°C,

• Temp will rise by 0°C,

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What is the temperature of an object related to?

• Temperature is related to the average kinetic energy of the particles in an object due to their random motions through space.

• Temperature is related to the average potential energy of the particles in an object due to their random motions through space.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Temperature is a measure of how hot or cold an object is compared to a reference point.

• • On the Celsius scale, the reference points are the freezing and boiling points of water (25°C and 100°C).

• • On the Celsius scale, the reference points are the freezing and boiling points of water (0°C and 100°C).

• • On the Celsius scale, the reference points are the freezing and boiling points of water (0°C and 50°C).

• • On the Celsius scale, the reference points are the freezing and boiling points of water (25°C and 50°C).

On the Kelvin scale, ___ ___ is defined as a temperature of 0 kelvins.

Tags

NGSS.HS-PS3-4

Tags

NGSS.MS-PS1-4