8th Grade SOL Practice 1 Physical Science

Front

What is the pH scale used for?

Back

The pH scale measures how acidic or basic a substance is, ranging from 0 (strong acid) to 14 (strong base), with 7 being neutral.

Front

What does Newton's 1st Law of Motion state?

Back

An object at rest stays at rest, and an object in motion stays in motion at a constant velocity unless acted upon by an unbalanced force.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state.

Front

What are reactants in a chemical reaction?

Back

Reactants are the starting substances in a chemical reaction that undergo change to form products.

Front

What are products in a chemical reaction?

Back

Products are the substances formed as a result of a chemical reaction.

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is a mixture?

Back

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

Front

What is an example of energy transformation?

Back

A pendulum swinging transforms kinetic energy to potential energy and back.

Front

What is the difference between a strong acid and a weak acid?

Back

A strong acid completely dissociates in water, while a weak acid only partially dissociates.