Forces & Newton's Laws

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 with the same speed and in the same direction unless acted upon by a net external force.

Front

What is Newton's 2nd Law of Motion?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. This is often expressed as F=ma.

Front

What is Newton's 3rd Law of Motion?

Back

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

Front

What is a balanced force?

Back

A balanced force occurs when two forces acting on an object are equal in size and opposite in direction, resulting in a net force of zero.

Front

What is an unbalanced force?

Back

An unbalanced force occurs when two forces acting on an object are not equal, resulting in a net force that causes the object to accelerate.

Front

How do you calculate net force when two forces are acting in the same direction?

Back

You add the magnitudes of the two forces together.

Front

How do you calculate net force when two forces are acting in opposite directions?

Back

You subtract the smaller force from the larger force.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object, which can be caused by a change in speed or direction.

Front

What is mass?

Back

Mass is a measure of the amount of matter in an object, typically measured in kilograms.

Front

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

Back

According to Newton's 2nd Law, the force acting on an object is equal to the mass of the object multiplied by its acceleration (F=ma).