Newton's Laws

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 with the same speed and in the same direction unless acted upon by an unbalanced force.

Front

What is an action force?

Back

The force that is applied to an object, such as an archer pulling back the bowstring.

Front

What is a reaction force?

Back

The force that is exerted in response to an action force, such as the bowstring pushing the arrow forward.

Front

What are balanced forces?

Back

Forces that are equal in size and opposite in direction, resulting in no change in motion.

Front

What are unbalanced forces?

Back

Forces that are not equal and opposite, causing a change in the motion of an object.

Front

What is inertia?

Back

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

Front

What does Newton's Second Law of Motion state?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F=ma).

Front

What is the formula for calculating force?

Back

Force (F) = mass (m) × acceleration (a).

Front

What is Newton's Third Law of Motion?

Back

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

Front

What is gravitational force?

Back

The force of attraction between two masses, such as the Earth and an object.