Rulers, measuring tapes and metre scales are used to measure

(a)

Mass

(b)

Weight

(c)

Time

(d)

Length

Which among the following is not a device to measure mass?

(a)

Spring balance

(b)

Beam balance

(c)

Physical balance

(d)

Digital balance

___________is the derived quantity.

(a)

Length

(b)

Volume

(c)

Mass

(d)

Time

Unit of time is_________.

(a)

km

(b)

mm

(c)

second

(d)

cm

There are___________fundamental units in SI system of units.

(a)

7

(b)

4

(c)

6

(d)

5

The unit of area is_________.

(a)

m³

(b)

m

(c)

m²

(d)

\(\frac{m}{s}\)

Light travels________m in one second.

(a)

5 x 10³

(b)

5 x 10⁸

(c)

3 x 10⁸

(d)

8 x 10³

1 quintal is equal to_______kg.

(a)

100

(b)

200

(c)

1000

(d)

10

With the help of common beam balance we can measure mass accurately up to_________gm.

(a)

2 gms

(b)

5 gms

(c)

100 gms

(d)

20 gms

_________is the unit of distance used to measure astronomical objects outside the solar system.

(a)

Parsec

(b)

km

(c)

cm

(d)

litre

Length, mass and time are called__________.

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Fundamental units

The smallest amount of time imaginable to us is a twinkling of eye is called_________.

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atomus

JS^-1 is the unit of__________.

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Power

1 metric tonne is equal to________kg.

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1000

The diameter of spherical objects can be measured with___________.

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Vernier Caliper

What is the full form of SI system?

Convert: 104°F into Celsius scale.

Calculate the correct readings of the Vernier caliper L.C. 0.01 em Zero correction - Nil.

S.No.	M.S.R	V.C	Observed Reading = M.S.R + (V.C x L.C)	Correct Reading
1	3	4
2	3	7

In which part of the Vernier caliper is used to measure the internal diameter of a cylindrical pipe?

Define length.

Write the need of a standard unit.

How will you measure the least count of vernier caliper?

Copy and complete the table.

Measurement	Unit	Symbol
Length	----	---
--	Kilogram	--
--	--	S

The mass of an object is 5 kg. What is its weight on the earth?

The Main scale reading is 3.8 Vernier scale coincidence = 5^th division. No zero error. Find the length of the iron cylinder.

Explain a method to find the thickness of a hollow tea cup.

Find the diameter of a thin wire using screw gauge.