Forces and Motion Review

Front

What is Newton's 1st Law of Motion?

Back

Objects keep doing what they are doing unless a force is applied.

Front

What is Newton's 2nd Law of Motion?

Back

The acceleration of an object depends on the mass of the object and the amount of force applied.

Front

What is Newton's 3rd Law of Motion?

Back

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

Front

What is inertia?

Back

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

Front

How does mass affect inertia?

Back

More mass means more inertia; heavier objects are harder to move.

Front

What is balanced force?

Back

Balanced forces are equal in size and opposite in direction, resulting in no change in motion.

Front

What is unbalanced force?

Back

Unbalanced forces are not equal and can cause an object to start moving, stop moving, or change direction.

Front

What is the Law of Action-Reaction?

Back

It states that for every action, there is an equal and opposite reaction.

Front

What happens to a book lying still on a table?

Back

The forces are balanced; gravity pulls it down while the table pushes it up.

Front

What is jet propulsion?

Back

Jet propulsion is a method of moving an object by expelling exhaust in one direction to create movement in the opposite direction.