Which statement best describes a physical quantity?

A quantity that can be measured and expressed with a unit

A quantity that cannot be measured

A description without a numerical value

Class 9 Physics · Chapter 1 · Test 5

Comprehensive Chapter Revision

25 MCQs • Revise the full chapter, including physical quantities, SI units, prefixes, measuring instruments, least count, volume, errors, uncertainty, significant figures, precision, and accuracy. Questions are based on the textbook content provided.

MCQs

25 questions · 20 min · 25 marks

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Sample questions

The first 5 of 25. Try each one, then tap to see the answer.

Question 1
Which statement best describes a physical quantity?
- AA quantity that cannot be measured
- BA quantity that can be measured and expressed with a unit
- CA personal opinion
- DA description without a numerical value
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Answer: B
Physical quantities can be measured and expressed using a numerical value and a unit.
Question 2
Which of the following is an SI base quantity?
- AArea
- BSpeed
- CMass
- DVolume
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Answer: C
Mass is one of the seven SI base quantities.
Question 3
Which of the following is a derived quantity?
- ATime
- BLength
- CElectric current
- DArea
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Answer: D
Area is derived from length multiplied by breadth.
Question 4
Which SI base unit is used for length?
- AKilogram
- BMetre
- CSecond
- DKelvin
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Answer: B
The SI base unit of length is the metre with symbol m.
Question 5
Which symbol represents the SI base unit of luminous intensity?
- Alm
- Bcd
- Clx
- DW
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Answer: B
Candela is the SI base unit of luminous intensity and its symbol is cd.

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