Unit 8 test - Forces and Newton's Laws of Motion

Front

What happens to the force required if the mass of an object decreases?

Back

The force required would decrease.

Front

What is a force?

Back

A force is a push or pull on an object.

Front

What does Newton's 3rd Law of Motion state?

Back

For every action, there is an equal and opposite reaction.

Front

If the force applied to an object increases, what happens to its acceleration?

Back

The acceleration will increase.

Front

What is Newton's 1st 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 unit of force?

Back

The unit of force is the Newton (N).

Front

How does mass affect acceleration when a constant force is applied?

Back

As mass increases, acceleration decreases.

Front

What is inertia?

Back

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

Front

What is the formula for calculating force?

Back

Force = mass × acceleration (F = ma).

Front

What is the relationship between force, mass, and acceleration?

Back

Force is directly proportional to the product of mass and acceleration.