Physics Concepts and Forces

Front

What is inertia?

Back

Inertia is the resistance of matter to changes in motion.

Front

What determines if an object is moving or not moving?

Back

It depends on its surroundings.

Front

What is force?

Back

Force is a push or a pull.

Front

What is an unbalanced force?

Back

An unbalanced force causes changes in motion or rest.

Front

What is mass?

Back

Mass is the amount of matter in an object.

Front

What is acceleration?

Back

Acceleration is the change in motion or direction.

Front

What is the speed necessary to escape Earth’s gravity?

Back

25,023 mph.

Front

What is net force?

Back

Net force is the combined result of all forces acting on an object.

Front

What is a free-body diagram?

Back

A free-body diagram is used to show the direction and amount of forces acting on an object.

Front

What is normal force?

Back

Normal force is the force exerted by a surface on an object resting on that surface.