Forces and Newton's First Law

Front

What is a force?

Back

A force is a push or pull that can cause an object to move, change direction, or change shape.

Front

What is net force?

Back

Net force is the overall force acting on an object when all the individual forces are combined.

Front

What happens when the net force is zero?

Back

When the net force is zero, the object remains at rest or continues to move at a constant velocity.

Front

What is Newton's First Law of Motion?

Back

Newton's First Law states that an object at rest will stay at rest, and an object in motion will stay in motion at a constant speed and in a straight line unless acted upon by an unbalanced force.

Front

What is inertia?

Back

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

Front

What is an unbalanced force?

Back

An unbalanced force is when the forces acting on an object are not equal and opposite, causing the object to accelerate.

Front

Give an example of balanced forces.

Back

Two people pulling on a rope with equal force in opposite directions.

Front

What is the unit of force?

Back

The unit of force is the Newton (N).

Front

How do you calculate net force?

Back

Net force is calculated by adding all the forces acting on an object, taking into account their direction.

Front

What happens to an object if a net force is applied?

Back

If a net force is applied, the object will accelerate in the direction of the net force.