Newton's 1st Law

Front

What is inertia?

Back

Inertia is the tendency of an object to resist a change in its motion. It is directly related to the mass of the object.

Front

What kinds of objects have inertia?

Back

All objects with mass have inertia, regardless of whether they are at rest or in motion.

Front

What is Newton's 1st Law of Motion?

Back

Newton's 1st Law states that an object at rest will remain at rest, and an object in motion will remain in motion at a constant velocity unless acted upon by a net external force.

Front

What is a net force?

Back

The net force is the overall force acting on an object after all the individual forces are combined. It determines the object's acceleration.

Front

If a net force of 4000 N is acting to the left, what can be said about the object's motion?

Back

The object will accelerate to the left due to the net force acting on it.

Front

What happens to an object in motion if no net force acts on it?

Back

If no net force acts on an object in motion, it will continue to move at a constant velocity.

Front

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

Back

A magician pulling a tablecloth from under dishes without moving them demonstrates Newton's 1st Law, as the dishes remain at rest due to their inertia.

Front

What is the relationship between mass and inertia?

Back

The greater the mass of an object, the greater its inertia, meaning it will be harder to change its state of motion.

Front

What does it mean for an object to be at rest?

Back

An object is at rest when it is not moving relative to a reference point.

Front

What does it mean for an object to be in motion?

Back

An object is in motion when it changes its position relative to a reference point over time.