Class VI - Physics: Physical Quantities and Measurement (Objective Type Questions with Answers)

 

Class VI - Physics: Physical Quantities and Measurement (Objective Type Questions with Answers)

Section 1: Basic Physical Quantities and Measurement

1. What is the SI unit of length?
   a) Meter
   b) Kilogram
   c) Second
   d) Kelvin
   Answer: a) Meter

2. Which of the following is NOT a physical quantity?
   a) Speed
   b) Happiness
   c) Mass
   d) Temperature
   Answer: b) Happiness

3. Which instrument is used to measure length?
   a) Thermometer
   b) Stopwatch
   c) Ruler
   d) Balance
   Answer: c) Ruler

4. What is the SI unit of mass?
   a) Gram
   b) Kilogram
   c) Ton
   d) Pound
   Answer: b) Kilogram

5. Which instrument is used to measure mass?
   a) Spring balance
   b) Ruler
   c) Thermometer
   d) Stopwatch
   Answer: a) Spring balance

6. What is the SI unit of time?
   a) Minute
   b) Second
   c) Hour
   d) Day
   Answer: b) Second

7. Which instrument is used to measure time?
   a) Ruler
   b) Thermometer
   c) Stopwatch
   d) Beam balance
   Answer: c) Stopwatch

8. Which of the following is NOT a basic physical quantity?
   a) Length
   b) Area
   c) Mass
   d) Time
   Answer: b) Area

9. What is the SI unit of temperature?
   a) Degree Celsius
   b) Fahrenheit
   c) Kelvin
   d) Joule
   Answer: c) Kelvin

10. Which of the following is a fundamental physical quantity?
    a) Speed
    b) Volume
    c) Mass
    d) Density
    Answer: c) Mass

Section 2: SI Units and Symbols

11. What is the symbol for the SI unit of length?
    a) kg
    b) m
    c) s
    d) K
    Answer: b) m

12. Which is the correct unit for measuring temperature?
    a) K
    b) kg
    c) m
    d) N
    Answer: a) K

13. What is the SI unit of area?
    a) Square meter
    b) Liter
    c) Gram
    d) Second
    Answer: a) Square meter

14. Which of these is NOT a fundamental SI unit?
    a) Second
    b) Meter
    c) Kilogram
    d) Newton
    Answer: d) Newton

15. What is the SI unit of force?
    a) Joule
    b) Newton
    c) Pascal
    d) Watt
    Answer: b) Newton

Section 3: Conversion Using SI Units

16. 1 meter is equal to how many centimeters?
    a) 10 cm
    b) 100 cm
    c) 1000 cm
    d) 1 cm
    Answer: b) 100 cm

17. 1 kilogram is equal to how many grams?
    a) 10 g
    b) 100 g
    c) 1000 g
    d) 1 g
    Answer: c) 1000 g

18. 1 liter is equal to how many milliliters?
    a) 100 ml
    b) 1000 ml
    c) 10 ml
    d) 1 ml
    Answer: b) 1000 ml

19. 1 hour is equal to how many seconds?
    a) 3600 s
    b) 60 s
    c) 120 s
    d) 600 s
    Answer: a) 3600 s

20. What is the SI unit of energy?
    a) Watt
    b) Joule
    c) Newton
    d) Pascal
    Answer: b) Joule

Section 1: Basic Physical Quantities and Measurement

1. What is the SI unit of length?
   a) Meter
   b) Kilogram
   c) Second
   d) Kelvin
   Answer: a) Meter

2. Which of the following is NOT a physical quantity?
   a) Speed
   b) Happiness
   c) Mass
   d) Temperature
   Answer: b) Happiness

3. Which instrument is used to measure length?
   a) Thermometer
   b) Stopwatch
   c) Ruler
   d) Balance
   Answer: c) Ruler

4. What is the SI unit of mass?
   a) Gram
   b) Kilogram
   c) Ton
   d) Pound
   Answer: b) Kilogram

5. Which instrument is used to measure mass?
   a) Spring balance
   b) Ruler
   c) Thermometer
   d) Stopwatch
   Answer: a) Spring balance

6. What is the SI unit of time?
   a) Minute
   b) Second
   c) Hour
   d) Day
   Answer: b) Second

7. Which instrument is used to measure time?
   a) Ruler
   b) Thermometer
   c) Stopwatch
   d) Beam balance
   Answer: c) Stopwatch

Section 2: SI Units and Symbols

8. What is the symbol for the SI unit of length?
   a) kg
   b) m
   c) s
   d) K
   Answer: b) m

9. Which is the correct unit for measuring temperature?
   a) K
   b) kg
   c) m
   d) N
   Answer: a) K

10. What is the SI unit of area?
    a) Square meter
    b) Liter
    c) Gram
    d) Second
    Answer: a) Square meter

Section 3: Conversion Using SI Units

11. 1 meter is equal to how many centimeters?
    a) 10 cm
    b) 100 cm
    c) 1000 cm
    d) 1 cm
    Answer: b) 100 cm

12. 1 kilogram is equal to how many grams?
    a) 10 g
    b) 100 g
    c) 1000 g
    d) 1 g
    Answer: c) 1000 g

13. 1 liter is equal to how many milliliters?
    a) 100 ml
    b) 1000 ml
    c) 10 ml
    d) 1 ml
    Answer: b) 1000 ml

14. 1 hour is equal to how many seconds?
    a) 3600 s
    b) 60 s
    c) 120 s
    d) 600 s
    Answer: a) 3600 s

15. What is the SI unit of energy?
    a) Watt
    b) Joule
    c) Newton
    d) Pascal
    Answer: b) Joule

Section 1: Basic Physical Quantities and Measurement

1. What is measurement?
   a) The process of comparing an unknown quantity with a known quantity
   b) The process of counting objects
   c) The process of estimating an object's size
   d) The process of adding numbers
   Answer: a) The process of comparing an unknown quantity with a known quantity

2. How is measurement expressed?
   a) Only in words
   b) Using numerical values and units
   c) By drawing diagrams
   d) Through estimation
   Answer: b) Using numerical values and units

3. What is the SI unit of length?
   a) Meter
   b) Kilogram
   c) Second
   d) Kelvin
   Answer: a) Meter

4. Which of the following is NOT a physical quantity?
   a) Speed
   b) Happiness
   c) Mass
   d) Temperature
   Answer: b) Happiness

5. Which instrument is used to measure length?
   a) Thermometer
   b) Stopwatch
   c) Ruler
   d) Balance
   Answer: c) Ruler

6. What is the SI unit of mass?
   a) Gram
   b) Kilogram
   c) Ton
   d) Pound
   Answer: b) Kilogram

7. Which instrument is used to measure mass?
   a) Spring balance
   b) Ruler
   c) Thermometer
   d) Stopwatch
   Answer: a) Spring balance

8. What is the SI unit of time?
   a) Minute
   b) Second
   c) Hour
   d) Day
   Answer: b) Second

9. Which instrument is used to measure time?
   a) Ruler
   b) Thermometer
   c) Stopwatch
   d) Beam balance
   Answer: c) Stopwatch

Section 2: SI Units and Symbols

10. What is the symbol for the SI unit of length?
    a) kg
    b) m
    c) s
    d) K
    Answer: b) m

11. Which is the correct unit for measuring temperature?
    a) K
    b) kg
    c) m
    d) N
    Answer: a) K

12. What is the SI unit of area?
    a) Square meter
    b) Liter
    c) Gram
    d) Second
    Answer: a) Square meter

Section 3: Conversion Using SI Units

13. 1 meter is equal to how many centimeters?
    a) 10 cm
    b) 100 cm
    c) 1000 cm
    d) 1 cm
    Answer: b) 100 cm

14. 1 kilogram is equal to how many grams?
    a) 10 g
    b) 100 g
    c) 1000 g
    d) 1 g
    Answer: c) 1000 g

15. 1 liter is equal to how many milliliters?
    a) 100 ml
    b) 1000 ml
    c) 10 ml
    d) 1 ml
    Answer: b) 1000 ml

16. 1 hour is equal to how many seconds?
    a) 3600 s
    b) 60 s
    c) 120 s
    d) 600 s
    Answer: a) 3600 s

17. What is the SI unit of energy?
    a) Watt
    b) Joule
    c) Newton
    d) Pascal
    Answer: b) Joule

    Here are two characteristics of a unit along with related questions:

    1. Universality – A unit should be the same everywhere and should not change with time, place, or conditions.

       • Why is it important for a unit to remain the same across different locations and conditions?

    2. Consistency – A unit should be well-defined and not vary in different measurements to ensure accuracy and precision.

    Four Basic Measurements in Our Daily Life – Question & Answer

    1. What is the basic measurement used to determine how long an object is?

       • The basic measurement used to determine length is meters (m) or centimeters (cm).

    2. Which measurement helps us determine how much something weighs?

       • The measurement used for weight is kilograms (kg) or grams (g).

    3. How do we measure the amount of liquid in a container?

       • The amount of liquid is measured in liters (L) or milliliters (mL).

    4. What unit is used to measure time in daily life?

    • Time is measured in seconds (s), minutes (min), and hours (h).

    S.I. Units of Mass, Length, Time, and Temperature – Question & Answer

    1. What is the S.I. unit of mass?

       • The S.I. unit of mass is kilogram (kg).

    2. What is the S.I. unit of length?

       • The S.I. unit of length is meter (m).

    3. What is the S.I. unit of time?

       • The S.I. unit of time is second (s).

    4. What is the S.I. unit of temperature?

       • The S.I. unit of temperature is kelvin (K).

       • Questions & Answers on SI Unit of Length

         1. What is the definition of one meter?

            • One meter is defined as the distance that light travels in a vacuum in 1/299,792,458 seconds.

         2. What is the S.I. unit of length?

            • The S.I. unit of length is meter (m).

         3. State one multiple of a meter.

            • One multiple of a meter is kilometer (km), where 1 km = 1000 m.

         4. State one sub-multiple of a meter.

            • One sub-multiple of a meter is centimeter (cm), where 1 cm = 0.01 m.
            •