Forces in Motion Study Guide

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion. It depends on the mass of the object and the speed at which it is moving.

Front

At what point does a roller coaster have the most kinetic energy?

Back

At the lowest point of the track, where it is moving the fastest.

Front

What happens to an object with an unbalanced force?

Back

It will move in the direction of the greater force.

Front

What does Newton's 2nd law state?

Back

The force applied to an object is equal to the object's mass times the object's acceleration (F = ma).

Front

Which law explains why a skateboard moves when pushed?

Back

Newton's 2nd Law explains that the skateboard accelerates in the direction of the applied force.

Front

What is Newton's 3rd law?

Back

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

Front

What is an example of Newton's 1st Law?

Back

An object at rest will stay at rest unless acted upon by an unbalanced force.

Front

How does mass affect acceleration according to Newton's 2nd Law?

Back

As mass increases, for the same amount of force, acceleration decreases.

Front

What is the formula for calculating force?

Back

Force (F) = Mass (m) x Acceleration (a).

Front

What is inertia?

Back

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