Practice Sheet OF Unit And Measurement

𝕌𝕟𝕚𝕥 𝕒𝕟𝕕 𝕄𝕖𝕒𝕤𝕦𝕣𝕖𝕞𝕖𝕟𝕥 ℙ𝕣𝕒𝕔𝕥𝕚𝕔𝕖 𝕊𝕙𝕖𝕖𝕥

Here's a practice sheet with 50 questions on units and measurements for Class 11, along with their solutions:

1). Convert 25 cm to meters.

Solution: 25 cm = 0.25 meters

2). What is the SI unit of time?

Solution: The SI unit of time is seconds.

3). Convert 2 hours into seconds.

Solution: 2 hours = 7200 seconds

4). What is the SI unit of length?

Solution: The SI unit of length is meters.

5). Convert 500 grams to kilograms.

Solution: 500 grams = 0.5 kilograms

6). Define the term 'accuracy' in measurement.

Solution: Accuracy refers to how close a measurement is to the true value.

7). Convert 5 km/h to m/s.

Solution: 5 km/h = 1.39 m/s (approx.)

8). What is the SI unit of temperature?

Solution: The SI unit of temperature is Kelvin (K).

9). Convert 1000 mL to liters.

Solution: 1000 mL = 1 liter

10). Define the term 'precision' in measurement.

Solution: Precision refers to the consistency and reproducibility of a measurement.

11). Convert 60 miles per hour to meters per second.

Solution: 60 mph = 26.82 m/s (approx.)

12). Define the term 'significant figures' in measurement.

Solution: Significant figures are the digits in a measurement that carry meaning and represent its precision.

13). Convert 40 degrees Celsius to Fahrenheit.

Solution: 40°C = 104°F

14). What is the SI unit of mass?

Solution: The SI unit of mass is kilograms.

15). Convert 300 cm² to m².

Solution: 300 cm² = 0.03 m²

16). Define the term 'dimensional analysis'.

Solution: Dimensional analysis is a method used to convert between different units by using their dimensional relationships.

17). Convert 8 ounces to grams.

Solution: 8 ounces = 227 grams (approx.)

18). What is the SI unit of electric current?

Solution: The SI unit of electric current is ampere (A).

19). Convert 5000 meters to kilometers.

Solution: 5000 meters = 5 kilometers

20). Define the term 'systematic error' in measurement.

Solution: Systematic error refers to consistent errors that cause measurements to deviate from the true value in the same direction.

21). Convert 50 kilometers per hour to miles per hour.

Solution: 50 km/h = 31.07 mph (approx.)

22). What is the SI unit of luminous intensity?

Solution: The SI unit of luminous intensity is candela (cd).

23). Convert 2 liters to milliliters.

Solution: 2 liters = 2000 milliliters

24). Define the term 'random error' in measurement.

Solution: Random error refers to unpredictable fluctuations that cause measurements to scatter around the true value.

25). Convert 5000 grams to kilograms.

Solution: 5000 grams = 5 kilograms

26). What is the SI unit of amount of substance?

Solution: The SI unit of amount of substance is mole (mol).

27). Convert 15 cm³ to mL.

Solution: 15 cm³ = 15 mL

28). Define the term 'parallax error' in measurement.

Solution: Parallax error occurs when the observer's line of sight is not perpendicular to the scale being read, resulting in an inaccurate measurement.

29).Convert 35 degrees Fahrenheit to Celsius.

Solution: 35°F = 1.67°C (approx.)

30).What is the SI unit of luminous intensity?

Solution: The SI unit of luminous intensity is candela (cd).

31). Convert 3 kilometers to meters.

Solution: 3 kilometers = 3000 meters

32). Define the term 'zero error' in measurement.

Solution: Zero error refers to a deviation from the true zero reading of the measuring instrument.

33). Convert 100 miles per hour to kilometers per hour.

Solution: 100 mph = 160.93 km/h (approx.)

34). What is the SI unit of frequency?

Solution: The SI unit of frequency is hertz (Hz).

35). Convert 5 meters per second to kilometers per hour.

Solution: 5 m/s = 18 km/h (approx.)

36). Define the term 'zero error' in measurement.

Solution: Zero error refers to a deviation from the true zero reading of the measuring instrument.

37). Convert 500 milligrams to grams.

Solution: 500 milligrams = 0.5 grams

38). What is the SI unit of force?

Solution: The SI unit of force is newton (N).

39). Convert 1000 milliliters to liters.

Solution: 1000 milliliters = 1 liter

40). Define the term 'resolution' in measurement.

Solution: Resolution refers to the smallest increment that can be measured by an instrument.

41).Convert 45 degrees Celsius to Kelvin.

Solution: 45°C = 318.15 K

42). What is the SI unit of pressure?

Solution: The SI unit of pressure is pascal (Pa).

43). Convert 2000 grams to kilograms.

Solution: 2000 grams = 2 kilograms

44). Define the term 'calibration' in measurement.

Solution: Calibration is the process of checking and adjusting a measuring instrument to ensure its accuracy.

45). Convert 10 centimeters to meters.

Solution: 10 centimeters = 0.1 meters

46). What is the SI unit of energy?

Solution: The SI unit of energy is joule (J).

47). Convert 1 kilometer to miles.

Solution: 1 kilometer = 0.62 miles

48). Define the term 'uncertainty' in measurement.

Solution: Uncertainty refers to the range of values within which the true value of a measurement is likely to lie.

49). Convert 300 millimeters to meters.

Solution: 300 millimeters = 0.3 meters

50). What is the SI unit of power?

Solution: The SI unit of power is watt (W).

I hope this practice sheet helps you in your preparation! If you have any more questions, feel free to ask.