Physics Forces and Motion Flashcard

Front

What is friction?

Back

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

Front

What are the types of friction?

Back

The main types of friction are static friction (when an object is not moving), kinetic friction (when an object is sliding), and rolling friction (when an object rolls over a surface).

Front

How does surface texture affect friction?

Back

Rough surfaces create more friction, while smooth surfaces create less friction.

Front

What is gravity?

Back

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

Front

What is motion?

Back

Motion is the change in position of an object over time.

Front

What is a distance/time graph?

Back

A distance/time graph shows how far an object has traveled over a certain period of time.

Front

What does a steep line on a distance/time graph indicate?

Back

A steep line indicates that the object is moving quickly.

Front

What does a flat line on a distance/time graph indicate?

Back

A flat line indicates that the object is not moving.

Front

What happens to friction when you increase the weight of an object?

Back

Increasing the weight of an object generally increases the friction between the object and the surface.

Front

How can you increase friction?

Back

You can increase friction by making a surface rougher or by adding weight to an object.