Forces and Motion Review

Front

What are the two properties of a force?

Back

Magnitude (size) & direction.

Front

What is the net force if two forces of 5N and 2N act in the same direction?

Back

7N to the right.

Front

Which law states that an object at rest will stay at rest unless acted upon by an unbalanced force?

Back

Newton's first law.

Front

What direction will an object move if the forces acting on it are unbalanced?

Back

In the direction of the greater force.

Front

What are unbalanced forces?

Back

Forces that are unequal and cause motion.

Front

What is the formula for calculating force?

Back

Force = mass x acceleration (F = ma).

Front

What happens to an object in motion if no net force acts on it?

Back

It continues to move at a constant velocity.

Front

What is the effect of gravity on falling objects?

Back

It accelerates them downwards at 9.8 m/s².

Front

What is inertia?

Back

The tendency of an object to resist changes in its state of motion.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object; weight is the force of gravity acting on that mass.