Forces

Front

What is a force?

Back

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

Tags

NGSS.MS-PS2-2

Front

What is gravity?

Back

Gravity is the force that pulls objects toward each other, such as the force that pulls us toward the Earth.

Tags

NGSS.MS-PS2-4

Front

What is friction?

Back

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

Front

What is magnetism?

Back

Magnetism is a force that can attract or repel certain materials, like iron, and is caused by the motion of electric charges.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Front

What is mass?

Back

Mass is the amount of matter in an object, which affects how much force is needed to move it.

Tags

NGSS.MS-PS1-5

NGSS.MS-PS3-1

Front

What is acceleration?

Back

Acceleration is the rate at which an object's velocity changes over time, often caused by a force.

Tags

NGSS.MS-PS2-2

Front

What is a push force?

Back

A push force is a force that moves an object away from the source of the force.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Front

What is a pull force?

Back

A pull force is a force that moves an object toward the source of the force.

Tags

NGSS.MS-PS2-1

Front

How does mass affect acceleration?

Back

The more mass an object has, the more force is needed to accelerate it.

Tags

NGSS.MS-PS2-2

Front

What are the two main forces acting on a falling object?

Back

Gravity pulls the object down, while air resistance (a type of friction) opposes the fall.

Tags

NGSS.MS-PS2-4