Sir Isaac Newtons First Law of Motion Flashcard

Front

What is Newton's First Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion at a constant velocity unless acted upon by a net external force.

Front

What is a contact force?

Back

A force that requires physical contact between two objects, such as friction.

Front

What is a force?

Back

A push or pull that can cause an object to accelerate, change direction, or change shape.

Front

What happens to an object at rest when balanced forces act on it?

Back

The object remains at rest.

Front

What is an example of a balanced force?

Back

A squirrel sitting on the ground without moving.

Front

What is an unbalanced force?

Back

A force that causes an object to accelerate, change direction, or change speed.

Front

What is friction?

Back

A contact force that opposes the motion of an object.

Front

What is inertia?

Back

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

Front

What is the unit of force?

Back

Newton (N).

Front

What does it mean for forces to be balanced?

Back

The total forces acting on an object are equal in size and opposite in direction, resulting in no change in motion.