Practice MCQs For Measurement of Physical Quantities

This quiz contains practice questions for Measurement Of Physical Quantities (O Level). There are explanations for some of the questions after you submit the quiz. If you could not figure out why a particular option is the answer, feel free to drop a comment below or ask a question in ‘O’ & ‘A’ Level Discussion section of the forum. If you wish to contribute questions to this quiz, please contact us.

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1. The diagram shows part of a vernier scale.

What is the correct reading?

42.5 mm

33.5 mm

30.5 mm

38.0 mm

2. A vernier caliper is precise to __________ ?

0.01 mm

0.1 mm

0.001 mm

1 mm

3. In a micrometer screw gauge, the ratchet is used to

correct the zero error

turn the circular scale

apply the correct pressure

lock the spindle

4. Which of the following correctly lists one scalar and one vector quantity?

	Scalar Quantity	Vector Quantity
A	Displacement	Work
B	Energy	Force
C	Force	Acceleration
D	Velocity	Mass

B

A

D

C

5. The diagram shows a micrometer scale.

What is the reading shown on the micrometer scale?

5.64 mm

7.64 mm

7.14 mm

7.16 mm

6. When using a measuring cylinder, one precaution to take is to __________.

position the eye in line with the base of the meniscus

look at the meniscus from below the level of the water surface

obtain more readings by looking from more than one direction

check for the zero error

7. In an experiment, it is required to measure the distance between two points which are between 0.7 m to 0.8 m apart. Which of the following instruments should be used so that the distance can be measured to within an accuracy of 0.001 m?

A metre rule

A half-metre rule

A metre rule and a pair of vernier calipers

A ten-metre measuring tape

8. What is the zero error as shown in the figure below?

-0.2 mm

0.48 mm

0.048 mm

-0.02 mm

9. What is the zero error as shown in the figure below?

0.3 mm

-0.3 mm

-0.7 mm

0.7 mm

10. The diagram shows part of a vernier scale.

What is the reading on the vernier scale?

7.00 cm

7.45 cm

6.55 cm

6.50 cm

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