Newton's 1st Law - The Law of Inertia

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 inertia?

Back

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

Front

What is net force?

Back

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

Front

How does mass relate to inertia?

Back

The greater the mass of an object, the greater its inertia.

Front

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

Back

If no net force acts on an object, it will maintain its current state of motion.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

Which has more inertia: a car or a bicycle?

Back

A car has more inertia than a bicycle due to its greater mass.

Front

What is an example of inertia in everyday life?

Back

A passenger lurches forward in a car when it suddenly stops due to inertia.

Front

How does gravity affect mass and weight?

Back

Gravity affects weight but not mass; mass remains constant regardless of gravitational field.

Front

What is the relationship between force and motion?

Back

A net force causes an object to accelerate, changing its motion.