Newton's Laws of Motion: Part 1

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 an unbalanced 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 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 does the equation F=ma represent?

Back

It represents Newton's 2nd Law of Motion, where F is the force applied, m is the mass of the object, and a is the acceleration.

Front

If the force on an object is doubled, what happens to the acceleration?

Back

The acceleration is also doubled, according to Newton's 2nd Law of Motion.

Front

What happens to a stationary object when an unbalanced force acts on it?

Back

It will start to move, as described by Newton's 1st Law of Motion.

Front

What is an example of Newton's 1st Law of Motion?

Back

A rocket in outer space continues to move at a constant speed in a straight line unless acted upon by another force.

Front

What is an example of Newton's 2nd Law of Motion?

Back

If you push a car with a certain force, it will accelerate. If you push harder (double the force), it will accelerate more.

Front

What is an example of Newton's 3rd Law of Motion?

Back

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

Front

What is inertia?

Back

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