Forces and Changes in Motion

Front

What is a force?

Back

A force is a push or pull that can cause an object to move, change direction, or change shape.

Tags

NGSS.MS-PS2-2

Front

What is gravitational force?

Back

Gravitational force is the attraction between two objects due to their mass.

Tags

NGSS.MS-PS2-4

Front

What is normal force?

Back

Normal force is the support force exerted upon an object that is in contact with a surface.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object when it is in contact with another surface.

Front

How does distance affect gravitational force?

Back

As the distance between two objects increases, the gravitational force between them decreases.

Front

How does mass affect gravitational force?

Back

As the mass of two objects increases, the gravitational force between them increases.

Tags

NGSS.MS-PS2-4

Front

What is applied force?

Back

Applied force is a force that is applied to an object by a person or another object.

Front

What is the difference between contact and non-contact forces?

Back

Contact forces require physical contact between objects, while non-contact forces act at a distance.

Tags

NGSS.MS-PS2-5

Front

What is an example of a contact force?

Back

Friction is an example of a contact force.

Front

What is an example of a non-contact force?

Back

Gravitational force is an example of a non-contact force.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5