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2. Question 1
• What is the formula for density?
• A. Mass / Volume
• B. Volume / Mass
• C. Mass * Volume
• D. Weight / Volume

3. Question 2
• Which unit is commonly used for density?
• A. kg
• B. m
• C. kg/m³
• D. m³/kg

4. Question 3
• What does buoyancy refer to?
• A. Weight of an object
• B. Volume of an object
• C. Upward force exerted by a fluid
• D. Density of a fluid

5. Question 4
• Which principle explains buoyancy?
• A. Newton's Law
• B. Archimedes' Principle
• C. Pascal's Law
• D. Bernoulli's Principle

6. Question 5
• An object will float if its density is:
• A. Greater than the fluid
• B. Equal to the fluid
• C. Less than the fluid
• D. Zero

7. Question 6
• What is the SI unit of force?
• A. Newton
• B. Joule
• C. Pascal
• D. Watt

8. Question 7
• Which of the following affects buoyant force?
• A. Mass of object
• B. Volume of fluid displaced
• C. Color of object
• D. Shape of object

9. Question 8
• What happens to buoyant force as depth
increases?
• A. Increases
• B. Decreases
• C. Remains the same
• D. Becomes zero

10. Question 9
• Which of the following is true about floating
objects?
• A. They displace more fluid than their volume
• B. They displace fluid equal to their weight
• C. They do not displace fluid
• D. They sink completely

11. Question 10
• What is the density of water?
• A. 1 kg/m³
• B. 1000 kg/m³
• C. 10 kg/m³
• D. 0.1 kg/m³

12. Question 11
• Which of the following materials is least
dense?
• A. Lead
• B. Water
• C. Air
• D. Iron

13. Question 12
• Buoyant force acts in which direction?
• A. Downward
• B. Sideways
• C. Upward
• D. Circular

14. Question 13
• What causes an object to sink?
• A. Buoyant force greater than weight
• B. Weight greater than buoyant force
• C. Equal buoyant force and weight
• D. No buoyant force

15. Question 14
• Which of the following is a fluid?
• A. Rock
• B. Air
• C. Wood
• D. Metal

16. Question 15
• What is the relationship between mass and
volume in density?
• A. Density = Mass / Volume
• B. Density = Volume / Mass
• C. Density = Mass * Volume
• D. Density = Mass + Volume

17. Question 16
• Which of the following objects will float in
water?
• A. Object with density 500 kg/m³
• B. Object with density 1500 kg/m³
• C. Object with density 1000 kg/m³
• D. Object with density 2000 kg/m³

18. Question 17
• What is the buoyant force equal to?
• A. Weight of object
• B. Volume of object
• C. Weight of displaced fluid
• D. Density of object

19. Question 18
• Which scientist discovered the principle of
buoyancy?
• A. Newton
• B. Einstein
• C. Archimedes
• D. Pascal

20. Question 19
• What happens to an object with density equal
to water?
• A. Floats
• B. Sinks
• C. Suspends
• D. Explodes

21. Question 20
• Which of the following is true about density?
• A. It is a measure of weight
• B. It is a measure of volume
• C. It is a measure of mass per unit volume
• D. It is a measure of temperature

22. Answer Key
• Question 1: A
• Question 2: C
• Question 3: C
• Question 4: B
• Question 5: C
• Question 6: A
• Question 7: B
• Question 8: C
• Question 9: B
• Question 10: B
• Question 11: C
• Question 12: C
• Question 13: B
• Question 14: B
• Question 15: A
• Question 16: A
• Question 17: C
• Question 18: C
• Question 19: C
• Question 20: C