Physical Changes Quiz - CBSE Class 7 Science

Free practice quiz: Physical Changes (CBSE Class 7 Science). 20 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

This CBSE Class 7 Science practice quiz has 20 multiple-choice questions on Physical Changes, and 20 of them come with an explanation. Try the 5 sample questions below (tap an option to check yourself), then play the full quiz online. No sign-up needed.

Sample questions

1. What is a common characteristic of physical changes?

   1. New substances are formed
   2. Color change occurs
   3. No new substances are formed
   4. Gas is released
   Show answer

   Answer: C. No new substances are formed

   A physical change is one where no new substances are formed. The change is mostly in the form of state or appearance.

2. Which property is not typically changed in a physical change?

   1. Shape
   2. Mass
   3. Volume
   4. Chemical Structure
   Show answer

   Answer: D. Chemical Structure

   Physical changes typically do not alter the chemical structure of a substance. Properties like shape, mass, and volume may change.

3. Why does ice melt into water when heated?

   1. It undergoes a chemical change
   2. The molecules break apart
   3. Molecular motion increases
   4. New substances are formed
   Show answer

   Answer: C. Molecular motion increases

   When ice melts, the heat causes increased molecular motion, leading to a change in state from solid to liquid, indicating a physical change.

4. Which statement about evaporating water is true?

   1. It changes into a new substance
   2. It is a chemical change
   3. It involves a change in energy
   4. It changes the chemical bonds
   Show answer

   Answer: C. It involves a change in energy

   Evaporating water involves a change in energy as heat is absorbed to break intermolecular forces and change state, not the chemical bonds.

5. What occurs during the freezing of water?

   1. Molecular rearrangement
   2. Chemical bonds form
   3. Water decomposes
   4. New elements are formed
   Show answer

   Answer: A. Molecular rearrangement

   Freezing involves molecular rearrangement as water changes from liquid to solid, with molecules slowing down and forming a structured lattice.

More questions in this quiz

Answers and explanations are in the full quiz.

1. Which of the following is an example of a physical change?
2. What happens to the molecules of a substance during a physical change?
3. If you freeze water, what kind of change has occurred?
4. How can a physical change be reversed?
5. When you cut a piece of paper, what type of change does it undergo?
6. In physical changes, energy...
7. What remains constant in a physical change?
8. Which of the following actions is not a physical change?
9. A physical change occurs when:
10. Which is not a property associated with physical changes?
11. What happens when salt is dissolved in water?
12. In a physical change, what generally happens to the identity of the molecules?
13. Which process does not involve a physical change?
14. Which factor does not typically change during a physical change?
15. Which of the following correctly differentiates a physical change?

More quizzes

• Chemical Changes▶ Play

Browse all Physical and Chemical Changes quizzes

More to play