Force and Motion

Front

What is force?

Back

A push or pull on an object that can cause it to move, stop, or change direction.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Front

What is motion?

Back

The change in position of an object over time.

Tags

NGSS.MS-PS2-2

Front

What is friction?

Back

A force that opposes the motion of an object when it comes into contact with another object.

Front

How does decreasing friction affect speed?

Back

Decreasing friction allows an object to move faster because there is less resistance.

Front

What is an independent variable?

Back

The variable that is changed or controlled in a scientific experiment to test its effects on the dependent variable.

Tags

NGSS.MS-PS2-2

Front

What is a dependent variable?

Back

The variable that is measured or tested in an experiment, which is affected by the independent variable.

Front

What is a fair test in an experiment?

Back

An experiment where only one variable is changed at a time to ensure that the results are valid.

Tags

NGSS.3-5-ETS1-3

Front

What is mass?

Back

The amount of matter in an object, usually measured in grams or kilograms.

Front

What is an unbalanced force?

Back

A force that causes an object to accelerate because the forces acting on it are not equal.

Tags

NGSS.MS-PS2-2

Front

What is acceleration?

Back

The rate at which an object changes its velocity, which can be an increase or decrease in speed.

Tags

NGSS.MS-PS2-2