Forces

Front

What is force?

Back

Any push or pull that can change the motion of an object.

Front

What is gravity?

Back

A force that attracts objects towards each other, commonly experienced as the force that pulls objects towards the Earth.

Front

What is friction?

Back

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

Front

What are the types of friction?

Back

1. Static Friction: Prevents motion. 2. Sliding Friction: Opposes motion when sliding. 3. Rolling Friction: Opposes motion when rolling. 4. Fluid Friction: Opposes motion through a fluid.

Front

What is sliding friction?

Back

The friction that occurs when two surfaces slide against each other.

Front

What is static friction?

Back

The friction that keeps an object at rest and prevents it from starting to move.

Front

What is rolling friction?

Back

The friction that occurs when an object rolls over a surface.

Front

What is fluid friction?

Back

The friction that occurs when an object moves through a fluid (liquid or gas).

Front

On which surface will a toy car travel the furthest: Carpet, Polished Wood, or Ice?

Back

Ice, because it has the least friction.

Front

What is the effect of friction on motion?

Back

Friction slows down or stops the motion of an object.