Units and Measurements Test

Result

Units and Measurements Test - 4

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Weekly Quiz Competition

Question 1
1 / -0

How many significant figures are there in 112.1100?

A
3

B
4

C
5

D
7
Question 2
1 / -0

Rounding off 85.32 to the nearest tenth gives

A
90.32

B
85.3

C
90.30

D
85.30
Question 3
1 / -0

763.46 on rounding off to the nearest hundred gives

A
763.50

B
800

C
763.00

D
700
Question 4
1 / -0

The length of a rod is (11.05 ± 0.05) cm. What is the total length of two rods of the same kind?

A
(22.1 ± 0.05) cm

B
(22.1±0.1) cm

C
(22.1 ± 0.05) cm

D
(22.10 ± 0.10) cm
Question 5
1 / -0

Rounding off number 8.750 up to two significant figure gives

A
8.7

B
8.75

C
8.8

D
8.70
Question 6
1 / -0

Error in the measurement of radius of sphere is 1%. The error in the measurement of volume is

A
1%

B
5%

C
3%

D
8%
Question 7
1 / -0

Which of the following is the most precise instrument for measuring length?

A
Metre rod of least count 0.1 cm

B
Vernier calliper of least count 0.01 cm

C
Screw gauge of least count 0.001 cm

D
An instrument of least count 1 cm
Question 8
1 / -0

A piece of metal has volume of 20 cc and mass 300 g. The density of metal will be

A
15 g cm^-2

B
15 g cm^-1

C
15 g

D
15 g cm^-3

Solution

Given: Mass = 300 g
Volume = 20 cc
Density = Mass ÷ Volume
= 300 ÷ 20
= 15 g cm^-3
Question 9
1 / -0

A piece of metal has mass 290 g and density 29 g cm^-3. Volume of the metal is

A
5 cc

B
10 cc

C
15 cc

D
20 cc

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Re-Attempt Weekly Quiz Competition

Units and Measurements Test - 4

Result

Units and Measurements Test - 4

Score

-

Rank

-

SHARING IS CARING

Question 1

3

4

5

7

Question 2

90.32

85.3

90.30

85.30

Question 3

763.50

800

763.00

700

Question 4

(22.1 ± 0.05) cm

(22.1±0.1) cm

(22.1 ± 0.05) cm

(22.10 ± 0.10) cm

Question 5

8.7

8.75

8.8

8.70

Question 6

1%

5%

3%

8%

Question 7

Metre rod of least count 0.1 cm

Vernier calliper of least count 0.01 cm

Screw gauge of least count 0.001 cm

An instrument of least count 1 cm

Question 8

15 g cm-2

15 g cm-1

15 g

15 g cm-3

Solution

Question 9

5 cc

10 cc

15 cc

20 cc

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Question Analysis

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15 g cm^-2

15 g cm^-1

15 g cm^-3