Newton's 1st Law of Motion

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 an unbalanced force.

Front

Define inertia.

Back

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

Front

What does it mean for forces to be balanced?

Back

Balanced forces are equal in size and opposite in direction, resulting in no change in motion.

Front

What does it mean for forces to be unbalanced?

Back

Unbalanced forces are not equal and can cause an object to accelerate, decelerate, or change direction.

Front

How does friction affect motion?

Back

Friction is a force that opposes motion, causing objects to slow down or stop.

Front

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

Back

It continues to move at a constant velocity.

Front

What is an example of inertia in everyday life?

Back

A passenger lurching forward in a car when it suddenly stops.

Front

How does mass relate to inertia?

Back

The greater the mass of an object, the greater its inertia, meaning it resists changes in motion more.

Front

What is the relationship between force and motion?

Back

A net force acting on an object causes it to accelerate in the direction of the force.

Front

What is an example of balanced forces?

Back

A book resting on a table experiences balanced forces: the weight of the book downward and the normal force of the table upward.