Physical Changes Quiz

What is a physical change?

• A change that alters the substance

• A change that does not change the substance

• A change that creates a new substance

• A change that is always irreversible

Which of the following is usually true about physical changes?

• They are irreversible

• They create new substances

• They are usually reversible

• They always involve chemical reactions

What happens to the substance during a physical change?

• It becomes a new substance

• It remains the same

• It always dissolves

• It always evaporates

Which of the following is NOT a characteristic of a physical change?

• Reversibility

• Change in substance

• Change in state

• No new substance formed

What is another term for a chemical change?

• Physical transformation

• Chemical reaction

• Physical reaction

• Chemical transformation

What is the main difference between a chemical change and a physical change?

• Chemical changes are reversible, physical changes are not

• Chemical changes alter the substance, physical changes do not

• Physical changes involve chemical reactions, chemical changes do not

• Physical changes are permanent, chemical changes are temporary

Which of the following is a sign of a chemical change?

• Melting

• Light

• Freezing

• Evaporation

Which sign of a chemical change involves a change in appearance?

• Light

• Heat

• Colour change

• Gas