Thermal Energy Part 1

Thermal Energy Part 1

Multiple Choice

Matter is

• anything that has mass

• anything that has volume

• anything that has mass and volume

Multiple Select

Which of the following is an example of a state of matter?

• solid

• liquid

• gas

• plasma

Multiple Choice

In which of the following states of matter are particles spread out the most and have the most kinetic energy?

• solid

• liquid

• gas

Multiple Choice

Condensation is caused by _____ kinetic energy.

• removing

• adding

Multiple Choice

Evaporation is caused by _____ kinetic energy.

• removing

• adding

Multiple Choice

Melting is caused by _____ kinetic energy.

• removing

• adding

Multiple Choice

Freezing is caused by _____ kinetic energy.

• removing

• adding

Multiple Choice

When kinetic energy is removed from a substance, its particles slow down and get closer together.

• True

• False

Thermal Energy

the total energy (KE + PE) of the particles that make up a substance.

Multiple Select

Kinetic Energy (KE) is _______.

• the energy of motion

• stored energy

• the energy of position

Multiple Select

Potential Energy (PE) is _______.

• the energy of motion

• stored energy

• the energy of position

Temperature

measure of average kinetic energy of the molecules in a substance

Tempt. Examples

• Things that are hot, i.e. fire, have a lot of kinetic energy and a high temperature

• Things that are cold, i.e. ice, do not have a lot of kinetic energy and have a low temperature

Multiple Choice

The atoms found in fire have more kinetic energy than the atoms found in ice.

• True

• False

Thermometer

tool used to measure temperature

Units

• Thermal energy - Joule (J)

• temperature - Celsius, Fahrenheit, Kelvin

Heat

the flow of thermal energy from a substance with a higher temperature to a substance with a lower temperature

Heat Transfer

Heat (energy) always moves from a warmer substance to a cooler substance.

Heat Transfer

Heat energy continues to move from higher temperature to lower temperature until the substances have the same temperature.

Multiple Choice

What is the measurement of the average kinetic energy of a substance?

• Kinetic energy

• Temperature

• Thermal energy

• Potential energy

Multiple Choice

Heat always transfers from an area of _____ temperature to an area of ____ temperature.

• high to low

• low to high

• high to high

• low to low

Multiple Choice

When the temperature of matter decreases the particles ...

• speed up and move farther apart

• speed up and move closer together

• slow down and move farther apart

• slow down and move closer together

Multiple Choice

If an object has particles that are moving very quickly, the object's temperature is probably ____.

• cold

• big

• slow

• hot