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 at a constant velocity unless acted upon by a net external force.

Front

What is another name for Newton's 1st Law?

Back

The law of inertia.

Front

What does Newton's 2nd 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 Newton's 3rd Law of Motion?

Back

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

Front

Give an example of Newton's 1st Law in everyday life.

Back

When you flick a card, the coin falls into the cup because the coin remains at rest until acted upon by the force of the flick.

Front

How does Newton's 1st Law explain why passengers lurch forward when a bus stops suddenly?

Back

Passengers continue in motion due to inertia, as their bodies resist the change in motion when the bus brakes.

Front

What is inertia?

Back

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

Front

Provide an example of Newton's 3rd Law in action.

Back

When a football player kicks a ball, the ball exerts an equal and opposite force back on the player's foot.

Front

How does mass affect acceleration according to Newton's 2nd Law?

Back

A larger mass results in less acceleration for the same amount of force applied.

Front

What happens to a bat swung by a baseball player after it hits the ball?

Back

The bat continues to move due to inertia until acted upon by another force.