Forces and Motion

Front

In the equation f=ma, 'F' stands for _______.

Back

force

Front

What is the effect of increasing mass on the gravitational force between two objects?

Back

The gravitational force increases.

Front

True or false. If you change ONLY the direction of an object, you have then changed its velocity.

Back

True.

Front

If an object is stationary (not moving) the forces acting upon it are _____________.

Back

balanced.

Front

In the equation f=ma, what unit of measure is used for force?

Back

Newton.

Front

What is the definition of force?

Back

A push or pull on an object that can cause it to accelerate.

Front

What is Newton's First Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What is the formula for calculating acceleration?

Back

a = (final velocity - initial velocity) / time.

Front

What is the relationship between mass and weight?

Back

Weight is the force of gravity acting on an object's mass (Weight = mass × gravity).

Front

What is inertia?

Back

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