Unit 1 The Universe Vocabulary

Front

Matter

Back

The substance or substances of which any physical object consists or is composed.

Front

Forces

Back

Influences that cause an object to undergo a change in speed, direction, or shape.

Front

Energy

Back

The capacity to do work or produce change in a system.

Front

Law of Conservation of Matter

Back

A principle stating that matter cannot be created or destroyed in an isolated system.

Front

Law of Conservation of Energy

Back

A principle stating that energy cannot be created or destroyed, only transformed from one form to another.

Front

Radioactive Decay

Back

The process by which an unstable atomic nucleus loses energy by emitting radiation.

Front

Gravity

Back

A force that attracts two bodies toward each other, the force that causes objects to fall toward the Earth.

Front

Weak Nuclear Forces (WNF)

Back

A fundamental force responsible for processes like beta decay in nuclear physics.

Front

Strong Nuclear Forces (SNF)

Back

The force that holds particles together in the atomic nucleus.

Front

Electromagnetic Forces (EMF)

Back

Forces associated with electric and magnetic fields, responsible for the electromagnetic interaction.