Friction and gravity

Front

What is friction?

Back

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

Tags

NGSS.MS-PS3-5

Front

What are the four types of friction?

Back

The four types of friction are static friction, sliding friction, rolling friction, and fluid friction.

Front

What is static friction?

Back

Static friction is the force that keeps an object at rest and prevents it from moving.

Front

What is sliding friction?

Back

Sliding friction occurs when two solid surfaces slide over each other.

Front

What is rolling friction?

Back

Rolling friction is the force that opposes the motion of a rolling object.

Front

What is fluid friction?

Back

Fluid friction is the resistance encountered by an object moving through a fluid (liquid or gas).

Front

What determines the strength of friction?

Back

The strength of friction depends on the nature of the surfaces in contact and the force pressing them together.

Front

What is gravity?

Back

Gravity is a force that attracts two bodies towards each other, depending on their masses and the distance between them.

Tags

NGSS.MS-PS2-4

Front

What is weight?

Back

Weight is the measure of the force of gravity acting on an object, calculated as mass times the acceleration due to gravity.

Tags

NGSS.MS-PS2-4

Front

How does mass affect gravity?

Back

The greater the mass of an object, the stronger the gravitational pull it exerts.

Tags

NGSS.MS-PS2-4