Multiple-Choice Questions (MCQs), Short Questions, and Long Questions

12 MCQs (Each 1 Mark)

1. What is the correct definition of matter?

  • a) Anything that has energy
  • b) Anything that has mass and occupies space
  • c) Anything that can be seen and touched
  • d) Anything that can flow

2. Which of the following is NOT a state of matter?

  • a) Gas
  • b) Liquid
  • c) Solid
  • d) Crystal

3. What determines the state of matter?

  • a) The mass of atoms
  • b) The arrangement and movement of particles
  • c) The size of molecules
  • d) The color of the substance

4. Which state of matter has high density and is incompressible?

  • a) Gas
  • b) Liquid
  • c) Solid
  • d) Plasma

5. What happens when a gas is subjected to a strong electric field or high temperature?

  • a) It turns into a liquid
  • b) It turns into a plasma
  • c) It remains unchanged
  • d) It becomes a solid

6. Which state of matter has the highest compressibility?

  • a) Gas
  • b) Liquid
  • c) Solid
  • d) Plasma

7. What is the main characteristic of a liquid crystal?

  • a) It has properties of both solids and liquids
  • b) It is a type of plasma
  • c) It is completely solid
  • d) It cannot change its state

8. Which of the following is an example of a macroscopic property?

  • a) Atomic number
  • b) Electron configuration
  • c) Compressibility
  • d) Chemical bonding

9. What happens when a crystalline solid is heated?

  • a) It directly turns into gas
  • b) It becomes a liquid crystal before turning into a liquid
  • c) It melts immediately
  • d) It remains solid

10. Which of the following is a unique state of matter observed at extremely low temperatures?

  • a) Plasma
  • b) Liquid crystal
  • c) Bose-Einstein Condensate (BEC)
  • d) Superfluid

11. Which state of matter is NOT commonly found under normal conditions on Earth?

  • a) Solid
  • b) Liquid
  • c) Gas
  • d) Plasma

12. What remains unchanged when matter changes from one state to another?

  • a) Physical appearance
  • b) Chemical composition
  • c) Temperature
  • d) Energy level

11 Short Questions (Each 3 Marks)

1. Define matter with an example.

2. Name the four main states of matter and describe one.

3. How does energy affect the states of matter?

4. What is meant by liquid crystal?

5. What happens to gases when exposed to strong electric fields or high temperatures?

6. How does Bose-Einstein Condensate (BEC) form?

7. Compare the compressibility of solids, liquids, and gases.

8. Explain why a solid does not flow but a liquid does.

9. What is a macroscopic property? Give two examples.

10. How does heating affect crystalline solids?

11. What physical techniques can be used to change the state of matter?

4 Long Questions (Each 5 Marks)

1. Describe the four states of matter along with their properties.

2. Explain the relationship between temperature, energy, and the change in states of matter with an example.

3. Discuss the concept of liquid crystals and how they differ from solids and liquids.

4. Compare the macroscopic properties of solids, liquids, and gases with examples.