PS Chapter 3, Section 1

Front

What is a force?

Back

A force is a push or pull that one body exerts on another.

Front

What is the net force?

Back

The net force is the combination of all the forces acting on an object.

Front

What are balanced forces?

Back

Balanced forces are forces that cancel each other out, resulting in no change in motion.

Front

Does gravity attract all objects towards one another?

Back

True, gravity attracts all objects towards one another.

Front

What is the SI unit used to measure force?

Back

The SI unit used to measure force is newtons.

Front

What is inertia?

Back

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

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force of gravity acting on that mass.

Front

What is a force pair?

Back

A force pair consists of two equal and opposite forces acting on different objects.

Front

What happens when unbalanced forces act on an object?

Back

When unbalanced forces act on an object, it causes the object to accelerate in the direction of the net force.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object when it is in contact with another surface.