Mass and Weight Class 11:
1. What is the SI unit of mass?
a) Kilogram
b) Newton
c) Pound
d) Gram
Answer: a) Kilogram
2. What is the SI unit of weight?
a) Kilogram
b) Newton
c) Pound
d) Gram
Answer: b) Newton
3. What does mass measure?
a) The force exerted by gravity on an object
b) The amount of matter in an object
c) The volume of an object
d) The density of an object
Answer: b) The amount of matter in an object
4. What is the definition of weight?
a) The amount of matter in an object
b) The force exerted by gravity on an object
c) The volume of an object
d) The density of an object
Answer: b) The force exerted by gravity on
an object
5. Which of the following is a scalar quantity?
a) Mass
b) Weight
c) Force
d) Velocity
Answer: a) Mass
6. What is the formula for weight?
a) Weight = Mass × Gravitational acceleration
b) Weight = Mass / Gravitational acceleration
c) Weight = Gravitational acceleration × Volume
d) Weight = Volume × Density
Answer: a) Weight = Mass × Gravitational
acceleration
7. The mass of an object is 50 kg. What is its weight on Earth (g = 9.8 m/s²)?
a) 50 N
b) 490 N
c) 500 N
d) 9.8 N
Answer: b) 490 N
8. Which of the following factors does not affect the weight of an object?
a) Gravitational field strength
b) The mass of the object
c) The shape of the object
d) The location of the object
Answer: c) The shape of the object
9. On which of the following planets would an object weigh less than on Earth?
a) Mars
b) Jupiter
c) Moon
d) Venus
Answer: c) Moon
10. An object has a mass of 2 kg. What is its weight on Earth?
a) 2 N
b) 19.6 N
c) 10 N
d) 2.2 N
Answer: b) 19.6 N
11. What is the relationship between mass and weight?
a) Mass = Weight
b) Weight = Mass / Gravitational acceleration
c) Weight = Mass × Gravitational acceleration
d) Mass = Weight × Gravitational acceleration
Answer: c) Weight = Mass × Gravitational
acceleration
12. What is the acceleration due to gravity on the Moon?
a) 9.8 m/s²
b) 1.6 m/s²
c) 10 m/s²
d) 5.6 m/s²
Answer: b) 1.6 m/s²
13. What is the mass of an object if its weight is 20 N on Earth?
a) 2 kg
b) 1.5 kg
c) 10 kg
d) 2.04 kg
Answer: d) 2.04 kg
14. Which instrument is used to measure weight?
a) Thermometer
b) Analytical balance
c) Spring scale
d) Caloriemeter
Answer: c) Spring scale
15. Which of the following is true about weight?
a) It is constant everywhere in the universe
b) It changes depending on the gravitational field strength
c) It is measured in kilograms
d) It is a scalar quantity
Answer: b) It changes depending on the
gravitational field strength
16. What happens to the weight of an object when it moves from the Earth to a planet with greater gravity?
a) It stays the same
b) It increases
c) It decreases
d) It becomes zero
Answer: b) It increases
17. The weight of an object on a different planet is directly proportional to:
a) Its volume
b) The strength of the gravitational field
c) The density of the object
d) The velocity of the object
Answer: b) The strength of the
gravitational field
18. Which of the following is the SI unit of force?
a) Kilogram
b) Pound
c) Newton
d) Joule
Answer: c) Newton
19. What would be the weight of a 100 kg object on the surface of Mars, where the acceleration due to gravity is 3.7 m/s²?
a) 270 N
b) 370 N
c) 1000 N
d) 980 N
Answer: a) 270 N
20. If the mass of an object is 10 kg, what is its weight on Earth?
a) 10 N
b) 100 N
c) 50 N
d) 98 N
Answer: d) 98 N
21. If the gravitational field strength on a planet is 16 N/kg, what is the weight of a 5 kg object on this planet?
a) 16 N
b) 5 N
c) 80 N
d) 320 N
Answer: c) 80 N
22. Which of the following is not a property of mass?
a) Mass is a scalar quantity
b) Mass remains constant irrespective of location
c) Mass depends on the gravitational field strength
d) Mass is measured in kilograms
Answer: c) Mass depends on the
gravitational field strength
23. The weight of an object on the Moon is one-sixth of its weight on Earth. If an object weighs 180 N on Earth, what is its weight on the Moon?
a) 30 N
b) 60 N
c) 180 N
d) 108 N
Answer: b) 60 N
24. What is the value of the acceleration due to gravity on Earth?
a) 9.8 m/s²
b) 10 m/s²
c) 9.0 m/s²
d) 8.0 m/s²
Answer: a) 9.8 m/s²
25. Which of the following is true about mass and weight?
a) Mass and weight are always equal
b) Mass is constant, but weight depends on gravity
c) Weight is constant, but mass depends on gravity
d) Mass and weight are unrelated
Answer: b) Mass is constant, but weight
depends on gravity
26. What is the weight of a 2 kg object on Earth?
a) 2 N
b) 19.6 N
c) 9.8 N
d) 20 N
Answer: b) 19.6 N
27. Which of the following is the correct formula for calculating the weight of an object?
a) W = Mass × g
b) W = Mass / g
c) W = Mass × Volume
d) W = Mass × Density
Answer: a) W = Mass × g
28. An object weighs 200 N on Earth. What would be its weight on Jupiter, where the gravitational field strength is about 24.8 N/kg?
a) 50 N
b) 100 N
c) 400 N
d) 480 N
Answer: c) 400 N
29. Which of the following is a true statement about weight?
a) Weight is measured in kilograms
b) Weight is independent of gravitational force
c) Weight is a force measured in newtons
d) Weight remains the same everywhere in the universe
Answer: c) Weight is a force measured in
newtons
30. The weight of an object on the Moon is onesixth of its weight on Earth. If the weight on Earth is 180 N, what is the weight on the Moon?
a) 60 N
b) 30 N
c) 90 N
d) 120 N
Answer: b) 30 N
31. If the mass of an object is 10 kg, what will its weight be on the surface of a planet where the gravitational field strength is 5 N/kg?
a) 5 N
b) 50 N
c) 500 N
d) 10 N
Answer: b) 50 N
32. If an object’s weight on Earth is 100 N, its weight on the Moon would be approximately:
a) 50 N
b) 16 N
c) 100 N
d) 600 N
Answer: b) 16 N
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