Newton's Laws of Motion

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 the formula for calculating force according to Newton's 2nd Law of Motion?

Back

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

Front

What does inertia refer to in physics?

Back

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

Front

What is the net force acting on an object?

Back

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

Front

State Newton's 3rd Law of Motion.

Back

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

Front

What is the relationship between mass and acceleration in Newton's 2nd Law?

Back

The greater the mass of an object, the more force is needed to accelerate it.

Front

How does friction affect motion according to Newton's Laws?

Back

Friction opposes the motion of an object, affecting its acceleration and velocity.

Front

What is the significance of the term 'action-reaction' in Newton's 3rd Law?

Back

It means that forces always occur in pairs; when one object exerts a force on another, the second object exerts an equal and opposite force back.

Front

What is the effect of a net force of zero on an object?

Back

An object with a net force of zero will maintain its current state of motion, either at rest or moving at a constant velocity.

Front

How can you calculate the net force if multiple forces are acting on an object?

Back

Add all the forces acting in one direction and subtract the forces acting in the opposite direction.