Thermal Energy MP 2 Flashcard 2 Review

Front

What happens to the temperature of a sample if the molecules that make it up speed up?

Back

The temperature of the sample increases.

Front

What are the molecules doing if the temperature of a substance is hot?

Back

They are moving very fast.

Front

What is the average amount of money Mandy earned per day if she earned $4 on Monday, $7 on Tuesday, $5 on Wednesday, $4 on Thursday, and $5 on Friday?

Back

$5.

Front

What is the definition of average?

Back

A number that summarizes a set of data by adding all the numbers in a list and then dividing by the quantity of numbers.

Front

What is kinetic energy?

Back

The energy an object has because it's moving.

Front

What is thermal energy?

Back

The total energy of all the particles in a substance.

Front

How does temperature relate to the motion of molecules?

Back

Higher temperature means faster-moving molecules.

Front

What is the relationship between kinetic energy and temperature?

Back

As temperature increases, kinetic energy increases.

Front

What is conduction?

Back

The transfer of thermal energy through direct contact between materials.

Front

What is convection?

Back

The transfer of thermal energy through the movement of fluids (liquids and gases).