Newton's Laws and Balanced Forces Review

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 with the same speed and in the same direction unless acted upon by an unbalanced force.

Front

What is the definition of balanced forces?

Back

Balanced forces are two or more forces acting on an object that cancel each other out, resulting in no change in motion.

Front

What happens to an object when the forces acting on it are unbalanced?

Back

An object will accelerate in the direction of the net force acting on it.

Front

What is the role of gravity in balanced forces?

Back

Gravity pulls objects downward, and when balanced by an equal upward force (like a table), the object remains motionless.

Front

How does the mass of an object affect its inertia?

Back

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

Front

What is the definition of force?

Back

A force is a push or pull exerted on an object, measured in Newtons (N).

Front

What is the relationship between force, mass, and acceleration?

Back

According to Newton's Second Law, force equals mass times acceleration (F = ma).

Front

What is an example of an unbalanced force?

Back

A person pushing a stationary car; if the force is strong enough, the car will start to move.

Front

What is the effect of a net force of zero on an object?

Back

If the net force is zero, the object will either remain at rest or continue moving at a constant velocity.

Front

How does friction affect motion?

Back

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