Units and Conversion Quiz

 

Units and Conversions Quiz

00:00

Test your knowledge on common units and their conversions for JEE and NEET.

Mass

1. How many kilograms are in 500 grams?

• 0.05 kg
• 0.5 kg
• 5 kg
• 50 kg

2. Convert 2.5 tonnes into kilograms.

• 250 kg
• 2500 kg
• 25000 kg
• 25 kg

3. How many micrograms are in one milligram?

• $10^3\ \mu g$
• $10^6\ \mu g$
• $10^9\ \mu g$
• $10^2\ \mu g$

4. Convert 10 kg to milligrams.

• $10^4\ mg$
• $10^6\ mg$
• $10^7\ mg$
• $10^8\ mg$

5. What is the value of 1 atomic mass unit (amu) in kilograms?

• $1.66 \times 10^{-27}\ kg$
• $1.66 \times 10^{-24}\ kg$
• $9.1 \times 10^{-31}\ kg$
• $6.022 \times 10^{23}\ kg$

6. How many pounds are in 1 kilogram? (Approximate value)

• 2.205 lbs
• 1.54 lbs
• 0.454 lbs
• 10 lbs

7. Convert 500 grams into tonnes.

• $5 \times 10^{-3}\ t$
• $5 \times 10^{-4}\ t$
• $0.5\ t$
• $50\ t$

8. A sack of flour weighs 25 kg. How many pounds is that?

• 55.12 lbs
• 11.34 lbs
• 2.5 lbs
• 551.2 lbs

9. What is the SI unit of mass?

• Gram
• Kilogram
• Pound
• Milligram

10. What is a "quintal" equal to in kilograms?

• 10 kg
• 100 kg
• 1000 kg
• 1 kg

Time

11. How many seconds are in 2 minutes and 30 seconds?

• 120 s
• 150 s
• 180 s
• 230 s

12. What is the SI unit of time?

• Hour
• Minute
• Second
• Day

13. How many seconds are in a day?

• 3600 s
• 86400 s
• 604800 s
• 1440 s

14. Convert 30 years into seconds (assuming a simple 365-day year).

• $9.46 \times 10^8\ s$
• $9.46 \times 10^7\ s$
• $3.15 \times 10^7\ s$
• $3.15 \times 10^8\ s$

15. What is the value of 1 femtosecond in seconds?

• $10^{-12}\ s$
• $10^{-15}\ s$
• $10^{-9}\ s$
• $10^{-6}\ s$

16. How many milliseconds are in one minute?

• $6 \times 10^3\ ms$
• $6 \times 10^4\ ms$
• $3.6 \times 10^6\ ms$
• $60\ ms$

17. A reaction takes 2.5 nanoseconds. What is this time in seconds?

• $2.5 \times 10^{-6}\ s$
• $2.5 \times 10^{-9}\ s$
• $2.5 \times 10^{-12}\ s$
• $2.5 \times 10^{-3}\ s$

18. A light year is a unit of:

• Time
• Mass
• Length
• Energy

19. How many minutes are in one week?

• 10080 minutes
• 1440 minutes
• 7000 minutes
• 525600 minutes

20. What is the standard SI prefix for $10^{-9}$?

• Micro
• Pico
• Femto
• Nano

Length

21. How many meters are in 5 kilometers?

• 500 m
• 5000 m
• 50 m
• 50000 m

22. What is 1 Angstrom ($Å$) in meters?

• $10^{-10}\ m$
• $10^{-12}\ m$
• $10^{-9}\ m$
• $10^{-6}\ m$

23. Convert 25 centimeters to inches. (1 inch = 2.54 cm)

• 9.84 inches
• 63.5 inches
• 25 inches
• 0.0984 inches

24. What is the SI unit of length?

• Kilometer
• Centimeter
• Meter
• Foot

25. How many micrometers are in 1 meter?

• $10^3\ \mu m$
• $10^6\ \mu m$
• $10^9\ \mu m$
• $10^2\ \mu m$

26. Convert 10 miles into kilometers. (1 mile = 1.609 km)

• 16.09 km
• 1.609 km
• 160.9 km
• 0.1609 km

27. How many feet are in a meter? (Approximate value)

• 3.28 ft
• 1 ft
• 10 ft
• 0.3048 ft

28. The distance from the Earth to the Sun is approximately 1 Astronomical Unit (AU). What is this in meters?

• $1.5 \times 10^8\ m$
• $1.5 \times 10^{11}\ m$
• $1.5 \times 10^{13}\ m$
• $9.46 \times 10^{15}\ m$

29. Convert 50 yards to meters. (1 yard = 0.9144 m)

• 45.72 m
• 50 m
• 54.68 m
• 457.2 m

30. A parsec is a unit of:

• Time
• Mass
• Distance
• Pressure

Temperature

31. Convert $25^\circ C$ to Kelvin.

• 248.15 K
• 273.15 K
• 298.15 K
• 323.15 K

32. What is the SI unit of temperature?

• Fahrenheit
• Celsius
• Kelvin
• Rankine

33. Convert $50^\circ F$ to Celsius. ($^\circ C = (^\circ F - 32) \times 5/9$)

• $10^\circ C$
• $15^\circ C$
• $50^\circ C$
• $32^\circ C$

34. Absolute zero is equal to:

• 0 K
• $-273.15^\circ C$
• $-459.67^\circ F$
• All of the above

35. A temperature of 373.15 K corresponds to:

• Freezing point of water
• Boiling point of water
• Room temperature
• Body temperature

Volume

36. How many milliliters are in 1 liter?

• 100 mL
• 1000 mL
• 10 mL
• 10000 mL

37. Convert 5 cubic meters ($m^3$) to liters.

• 500 L
• 5000 L
• 50 L
• 50000 L

38. What is the SI unit of volume?

• Liter
• Cubic centimeter
• Milliliter
• Cubic meter

39. How many cubic centimeters ($cm^3$) are in 1 liter?

• 10 $cm^3$
• 100 $cm^3$
• 1000 $cm^3$
• 1 $cm^3$

40. What is 1 fluid ounce (fl oz) approximately equal to in milliliters?

• 29.57 mL
• 15 mL
• 100 mL
• 1 L

Pressure

41. What is the SI unit of pressure?

• Atmosphere (atm)
• Bar
• Pascal (Pa)
• Torr

42. How many Pascals are in 1 atmosphere (atm)?

• $1.01325 \times 10^5\ Pa$
• $1.01325 \times 10^3\ Pa$
• $1.01325 \times 10^6\ Pa$
• $760\ Pa$

43. Convert 760 torr to atmospheres (atm).

• 1 atm
• 760 atm
• 10 atm
• 0.1 atm

44. A pressure of 1 bar is approximately equal to:

• 1 atm
• 10 atm
• 0.1 atm
• 100 atm

45. What is the value of 1 Torr in mm of Hg?

• 1 mm Hg
• 10 mm Hg
• 760 mm Hg
• 0.1 mm Hg

Energy

46. What is the SI unit of energy?

• Calorie (cal)
• Electron-volt (eV)
• Erg
• Joule (J)

47. Convert 1 kilocalorie (kcal) to Joules.

• 4.184 J
• 418.4 J
• 4184 J
• 41840 J

48. What is 1 electron-volt (eV) in Joules?

• $1.602 \times 10^{-19}\ J$
• $1.602 \times 10^{19}\ J$
• $9.1 \times 10^{-31}\ J$
• $6.626 \times 10^{-34}\ J$

49. How many ergs are in 1 Joule?

• $10^3\ erg$
• $10^5\ erg$
• $10^7\ erg$
• $10^9\ erg$

50. The unit of heat energy is:

• Joule
• Calorie
• Both a and b
• Newton

Quiz Results