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 a net external force.

Front

What is the definition of net force?

Back

The vector sum of all the forces acting on an object.

Front

What happens to an object's motion when the net force is zero?

Back

The object remains in its current state of motion, either at rest or moving at a constant velocity.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

How does gravity affect weight on different planets?

Back

Weight varies with the strength of gravity; mass remains constant regardless of location.

Front

What is air resistance?

Back

A force that opposes the motion of an object through the air, acting upward on falling objects.

Front

What is Newton's Second 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 (F=ma).

Front

What is an example of Newton's Third Law of Motion?

Back

For every action, there is an equal and opposite reaction; for example, when you push against a wall, the wall pushes back with equal force.

Front

What is inertia?

Back

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

Front

What is the formula for calculating weight?

Back

Weight (W) = mass (m) × gravitational acceleration (g).