Force Diagrams

Front

What happens to forces when a marble speeds up rolling down a ramp?

Back

The forces are unbalanced.

Front

What is the missing force when an object is in contact with a surface?

Back

Normal force.

Front

What is a Newton?

Back

A unit of force.

Front

What type of forces are acting on a skydiver who has just opened the parachute and is slowing down?

Back

The forces are unbalanced, with air resistance increasing.

Front

What does it mean if an object is moving at a constant speed due to balanced forces?

Back

It means the object is either not moving or moving at a constant speed.

Front

What is the force that pulls objects toward the Earth?

Back

Weight force.

Front

What is frictional force?

Back

A force that opposes the motion of an object.

Front

What is applied force?

Back

A force that is applied to an object by a person or another object.

Front

What are balanced forces?

Back

Forces that are equal in size and opposite in direction, resulting in no change in motion.

Front

What are unbalanced forces?

Back

Forces that are not equal and cause a change in motion.