Newton's Laws & Forces Test Review

Front

What happens to Earth if the gravitational pull between the Sun and Earth suddenly stops?

Back

Earth would continue traveling in a straight line through space.

Front

According to Newton's second law, what happens if you increase the force applied to an object?

Back

The object accelerates more.

Front

What two variables determine your weight?

Back

Weight is determined by mass and gravity.

Front

In physics, how is mass measured?

Back

Mass is measured in kilograms.

Front

True or False: Gravity attracts all objects towards one another.

Back

True.

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 force?

Back

Force = mass × acceleration (F = ma).

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

What is the relationship between mass and weight?

Back

Weight is the force of gravity acting on an object's mass.

Front

What unit is force measured in?

Back

Force is measured in newtons (N).