Unit 3 Forces

Front

What is friction?

Back

Friction is a force that always acts in the direction opposite of motion.

Front

What is velocity?

Back

Velocity is the measurement of speed and direction of an object.

Front

What are balanced forces?

Back

Balanced forces are forces that are equal in size and opposite in direction.

Front

What is a force?

Back

A force is the PUSH or PULL on an object.

Front

What is a contact force?

Back

A contact force is a force that comes from objects physically touching.

Front

What is gravity?

Back

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

Front

What is acceleration?

Back

Acceleration is the rate at which an object changes its velocity.

Front

What are unbalanced forces?

Back

Unbalanced forces are forces that are not equal in size and cause an object to move.

Front

What is the difference between speed and velocity?

Back

Speed is how fast an object is moving, while velocity includes both speed and direction.

Front

What is the normal force?

Back

The normal force is the support force exerted upon an object that is in contact with another stable object.