Newton's First law

Front

What does Newton's First Law of Motion state?

Back

If the net force on an object is zero, then an object at rest will remain at rest and an object in motion will continue moving in a straight line with constant speed.

Front

What is the net force?

Back

The combination of all forces acting on an object.

Front

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

Back

It continues to move in a straight line with constant speed.

Front

What is inertia?

Back

The tendency of an object to resist changes in its state of motion.

Front

If a car is driving at a constant velocity, what is the net force acting on it?

Back

0 N, because it is already in motion and no net force is needed to maintain that state.

Front

What is an example of balanced forces?

Back

When two equal forces act in opposite directions on an object, resulting in no change in motion.

Front

What is an example of unbalanced forces?

Back

When one force acting on an object is greater than the opposing force, causing the object to accelerate.

Front

How does Newton's First Law relate to everyday life?

Back

It explains why passengers lurch forward in a car when it suddenly stops; their bodies want to continue moving due to inertia.

Front

What is the difference between mass and weight?

Back

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

Front

What is a real-world example of Newton's First Law?

Back

A hockey puck sliding on ice will keep sliding until friction or another force stops it.