Balanced and Unbalanced - Lesson 4

Front

What is gravity?

Back

Gravity is a force that pulls objects toward each other, like how it pulls us toward the Earth.

Front

What is net force?

Back

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

Front

What happens when forces are balanced?

Back

When forces are balanced, the object does not move or stays at a constant speed.

Front

What happens when forces are unbalanced?

Back

When forces are unbalanced, the object will start to move or change its speed.

Front

What unit is used to measure force?

Back

Force is measured in Newtons (N).

Front

What is an example of an unbalanced force?

Back

An example of an unbalanced force is when you push a toy car and it starts to roll.

Front

What is an example of a balanced force?

Back

An example of balanced forces is when two people push on opposite sides of a door with the same strength.

Front

What does it mean if an object is not moving?

Back

If an object is not moving, it means the net force acting on it is 0, indicating balanced forces.

Front

What force causes an elevator to fall?

Back

The force that causes an elevator to fall is gravity.

Front

If a ball is thrown up, what type of forces are acting on it?

Back

The forces acting on the ball are unbalanced because it is moving upward.