Newton's Laws of Motion

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 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. This is often expressed as F=ma.

Front

What is Newton's third law of motion?

Back

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

Front

Define inertia.

Back

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

Front

What is the formula for calculating weight?

Back

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

Front

What is the normal force?

Back

The normal force is the force exerted by a surface to support the weight of an object resting on it, acting perpendicular to the surface.

Front

What is friction?

Back

Friction is the force that opposes the relative motion of two surfaces in contact.

Front

How does mass affect acceleration according to Newton's second law?

Back

As mass increases, for a given force, the acceleration decreases.

Front

What is the relationship between force and acceleration?

Back

The larger the force applied to an object, the larger the acceleration it will experience.

Front

What is an example of Newton's third law in everyday life?

Back

When you jump off a small boat, the boat moves backward as you move forward.