8th Grade Physical Science

Front

What is a compound?

Back

A substance made up of two or more different elements that are chemically bonded together.

Front

What does Newton's second law of motion state?

Back

Force = Mass x Acceleration.

Front

What is the angle of reflection?

Back

The angle at which light reflects off a surface, equal to the angle of incidence.

Front

What does the Group/Family on the periodic table indicate?

Back

Elements in the same group/family have similar physical and chemical properties.

Front

What is the most common type of energy used in homes?

Back

Electrical energy.

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is a mixture?

Back

A combination of two or more substances that are not chemically bonded.

Front

What is the definition of a solution?

Back

A homogeneous mixture where one substance is dissolved in another.

Front

What is the formula for density?

Back

Density = Mass/Volume.

Front

What is the law of conservation of energy?

Back

Energy cannot be created or destroyed, only transformed from one form to another.