PHYSICAL QUANTITIES AND MEASUREMENT MCQs

1. What is scientific notation also known as?

Advanced form

Scientific form

Standard form

Simplified form

2. What is the error in measurement of time caused by manual operation of the stopwatch called?

Digital error

Mechanical error

Physical error

Human reaction time

3. What are the two types of stopwatch?

Analog and Digital

Mechanical and Digital

Electronic and Mechanical

Analogue and Digital

4. What is the standard of time according to SI units?

Physical balance

Atomic clock

Mean solar day

Cesium atom

5. How does the electronic balance work?

By measuring the temperature

By balancing the forces

By measuring the length

By measuring the volume

6. What is the physical balance used for in the laboratory?

Measuring mass

Measuring time

Measuring temperature

Measuring length

7. What is the standard of mass according to SI units?

Kilogram

Gram

Pound

Meter

8. What are significant figures?

The most reliable numbers of a value

The prefixes used to represent small values of a physical quantity

The mathematical relations between physical quantities

The smallest unit of measurement

9. What is specific gravity?

A type of physical balance

A prefix used to represent large values of a physical quantity

The most accurate numbers of a value

The density of objects calculated with the help of water

10. What is density?

A characteristic property of a pure substance

A unit of measurement

A mathematical relation

A type of physical quantity