Matter Unit Test 2018

Front

What is matter?

Back

Matter is anything that has mass and takes up space.

Front

What is a chemical change?

Back

A chemical change occurs when substances combine or break apart to form new substances, often accompanied by energy changes.

Front

What is a physical change?

Back

A physical change is a change in which no new substances are formed, and the change can often be reversed.

Front

What are atoms?

Back

Atoms are the smallest units of matter that retain the properties of an element.

Front

What are compounds?

Back

Compounds are substances formed when two or more different types of atoms bond together.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms chemically bonded.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of motion; in the context of particles, it refers to the energy they possess due to their movement.

Front

What is potential energy?

Back

Potential energy is stored energy based on an object's position or arrangement; in particles, it relates to the distance between them.

Front

What happens to the energy of particles during melting?

Back

During melting, absorbed energy increases the potential energy of the particles, allowing them to move apart.

Front

What is a diatomic molecule?

Back

A diatomic molecule consists of two atoms of the same or different elements bonded together, such as O2 or H2.