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 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 gravity?

Back

A force that pulls objects toward each other, such as the force that pulls objects toward the Earth.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Front

What is inertia?

Back

The tendency of an object to resist changes in its state of motion.

Front

What happens to an object at rest when a force is applied?

Back

It will start to move in the direction of the applied force.

Tags

NGSS.3-PS2-1

Front

What is the effect of balanced forces on an object?

Back

The object remains at rest or continues to move at a constant speed in a straight line.

Front

What is an example of an unbalanced force?

Back

A pencil that is knocked to the ground.

Tags

NGSS.3-PS2-1

Front

What happens to a ball kicked in space?

Back

It continues to move in the same direction unless it hits something or is affected by gravity or another force.

Front

What pulls a ball back to Earth?

Back

Gravity.

Tags

NGSS.MS-PS2-4