Energy Review

What is the definition of "average"?

• a number that describes a set of data and can be calculated by adding all the numbers in a list and then dividing by the number of numbers.

• tiny organisms that are made of a single cell

• the ability to make things move or change

What is the definition of "kinetic energy"?

• the ability to make things move or change

• the energy that an object has because it is moving

• to move from one object to another or one place to another

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What is the definition of "transfer"?

• energy that moves

• to move from one object to another or one place to another

• the ability to make things move or change

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-5

What is the BEST definition of "temperature"?

• the amount of movement that atoms store

• The transfer of energy from one form to another

• A measure of the average speed of the molecules of a substance.

• A measure of how hot or cold something is

Tags

NGSS.MS-PS1-4

What is the definition of "equilibrium"?

• a balanced state in which a system is stable, such as when two samples are at the same temperature

• when two things exchange molecules

• when two things are balanced and weigh the same

• when two things exchange energy

Tags

NGSS.MS-PS1-4

When two samples come in contact the energy will flow

• from the cold one to the warmer one.

• from the warmer one to the cooler one.

• energy does not move.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Energy can't be created or destroyed.

• true

• false

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Molecules in a hotter sample will....

• have more kinetic energy

• be moving faster

• be moving slower

• be red in color

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Energy transfers occur when....

• molecules bond with each other

• molecules collide with each other

Tags

NGSS.MS-PS3-5

If two objects are touching and one object DECREASES in temperature, the other object with INCREASE in temperature.

• True

• False

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4