The SI unit of pressure is pascal. One pascal is equivalent to which one of the following?

A. One newton of force applied over an area of one meter square

B. One joule of energy applied over an area of one meter square

C. One watt of power applied over an area of one meter square

D. One kilogram of mass applied over an area of one meter square

Everyday Science · Physics in Everyday Life · page 4 of 5

List of SI Units (126) MCQs with Answers

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List of SI Units MCQs (31–40)

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31.
The SI unit of pressure is pascal. One pascal is equivalent to which one of the following?
Correct Answer: A. One newton of force applied over an area of one meter square
One-liner
One pascal is equivalent to one newton of force applied over an area of one meter square (1 Pa = 1 N/m²).
32.
What is measured in Newton per meter?
Correct Answer: A. Surface tension
One-liner
Newton per meter (N/m) is the SI unit of surface tension.
33.
The unit of density is _?
Correct Answer: A. g/cm³
One-liner
The unit of density is g/cm³ (grams per cubic centimetre).
34.
Past Paper MCQ
Joule is the unit of ?
Correct Answer: A. Energy/Heat
One-liner
Joule is the SI unit of Energy/Heat.
35.
1 atmosphere is equal to _?
Correct Answer: D. All of these
One-liner
1 atmosphere is equal to All of these — 760 mm of Hg, 101.325 kPa, and 14.7 psi are all equivalent representations of standard atmospheric pressure.
36.
What is the density of water in kg/m³?
Correct Answer: B. 1000 kg/m³
One-liner
The density of water is 1000 kg/m³ (or 1 g/cm³) at 4°C, which is its maximum density.
37.
Which word does NOT belong with the others? Yard, Centimeter, Inch, Ounce
Correct Answer: D. Ounce
One-liner
Ounce is a unit of weight/mass, while Yard, Centimeter, and Inch are all units of length.
38.
Past Paper MCQ
Radio waves frequency is measured in _?
Correct Answer: B. Hertz
One-liner
Radio waves frequency is measured in Hertz (Hz), which is the SI unit of frequency representing cycles per second.
39.
Which is an example of derived quantity?
Correct Answer: C. Area
One-liner
Area is a derived quantity because it is obtained by multiplying two lengths (length × breadth), both of which are base quantities.
40.
Unit of time period is?
Correct Answer: B. Second
One-liner
The unit of time period is the second (s), which is the SI base unit for time.

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List of SI Units (126) MCQs with Answers

List of SI Units MCQs (31–40)

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