12/4 Forces

Front

What are unbalanced forces?

Back

Unbalanced forces are forces that do not cancel each other out, resulting in a change in motion.

Front

What are balanced forces?

Back

Balanced forces are equal in size and opposite in direction, resulting in no change in motion.

Front

What is net force?

Back

Net force is the overall force acting on an object when all the individual forces are combined.

Front

If two forces act in the same direction, what happens to their strengths?

Back

Their strengths are added together.

Front

If two forces act in opposite directions, how do you find the net force?

Back

Subtract the smaller force from the larger force.

Front

What is the unit of force?

Back

The unit of force is the Newton (N).

Front

What happens to an object at rest when unbalanced forces act on it?

Back

It will start to move in the direction of the net force.

Front

What happens to a moving object when balanced forces act on it?

Back

It continues to move at a constant speed in a straight line.

Front

What is the effect of friction on motion?

Back

Friction opposes motion, making it harder for objects to move.

Front

How does mass affect the force needed to move an object?

Back

The greater the mass of an object, the more force is needed to move it.