Front

What are 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 are unbalanced forces?

Back

Unbalanced forces are forces that do not cancel each other out, causing an object to move or change its motion.

Front

Example of balanced forces: A book resting on a table. What happens?

Back

The book stays at rest because the forces acting on it are balanced.

Front

Example of unbalanced forces: A soccer ball being kicked. What happens?

Back

The soccer ball moves in the direction it was kicked because the forces are unbalanced.

Front

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

Back

The object remains at rest or continues to move at a constant speed.

Front

What happens to an object when unbalanced forces act on it?

Back

The object accelerates, changes direction, or changes speed.

Front

Balanced or Unbalanced: A car parked on a flat road. What is it?

Back

Balanced forces.

Front

Balanced or Unbalanced: A person pushing a stationary car. What is it?

Back

Unbalanced forces.

Front

What is inertia?

Back

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

Front

How does mass affect inertia?

Back

The more mass an object has, the greater its inertia, making it harder to change its motion.