Mass and Weight Questions

The measure of the amount of matter in a body is known as mass. The SI unit of mass is the kilogram (kg). Mass can never be zero. Weight is the measure of the amount of force acting on a mass due to acceleration due to gravity. SI unit of weight is Newton (N). Weight can be zero.

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Important Mass and Weight Questions with Answers

1. According to Newton’s second law of motion _____

1. F=m+a
2. F=ma
3. F=m-a
4. F=m/a

Answer: b) F=ma

Explanation: The magnitude of the force is given by the formula: F=ma.

2. The formula for weight is ______

1. w = m+g
2. w = m-g
3. w = mg
4. w = m/g

Answer: c) w = mg

Explanation: The weight of an object is directly proportional to its mass: w = mg.

3. The SI unit if the mass is ______

1. Joules
2. Seconds
3. Radians
4. Kilogram

Answer: d) Kilogram

Explanation: The SI unit of mass is the kilogram (kg).

4. What is the SI unit of weight?

1. Newton
2. Seconds
3. Radians
4. Kilogram

Answer: a) Newton

Explanation: the SI unit of weight is Newton.

5. Choose the correct answer: Which is the base quantity.

1. Weight
2. Mass

Answer: b) Mass

Explanation: Weight is a derived quantity whereas mass is the base quantity.

6. State true or false: Mass can be zero.

1. TRUE
2. FALSE

Answer: b) FALSE

Explanation: Mass can never be zero.

7. Does the mass and weight change according to the location?

Mass doesn’t vary according to location, whereas weight changes according to location.

8. Weight is a _____ quantity.

1. Scalar
2. Vector
3. Dimensionless
4. None of the options

Answer: b) Vector

Explanation: Weight is a vector quantity since it has both magnitude and direction.

9. Choose YES or No: Mass is a vector quantity.

1. YES
2. NO

Answer: b) NO

Explanation: Mass is a scalar quantity since it has only magnitude and no direction.

10. Beam balance is used to measure the ______

1. Weight
2. Mass

Answer: b) Mass

Explanation: Mass is measured using instruments such as lever balance, pan balance, and beam balance.

Practice Questions

1. What is the relationship between weight and mass?
2. What is mass?
3. What is weight?
4. What is weightlessness?
5. Which instrument is used to measure the weight?