Units and Measurements Test

Result

Units and Measurements Test - 2

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

One nanometer is equal to

A
10⁹ cm

B
10^-6 cm

C
10^-7cm

D
10^-9 cm

Solution

The word `nano` means that a quantity is getting smaller by 10⁹ times.
1 nm = 10^-9 m
= 10^-9 x 10² cm
= 10^-7 cm
Question 2
1 / -0

Earth`s radius is 6.37 × 10⁶ m and its average density is 5.517 × 10³ kg m^-3. Calculate the mass of Earth to correct significant figures?

A
5974 × 10²¹ kg

B
5974.01 × 10²¹ kg

C
5.97 × 10²⁴ kg

D
6 × 10²⁴ kg
Question 3
1 / -0

How many significant figures are there in 0.002002 ?

A
4

B
6

C
7

D
12
Question 4
1 / -0

How many significant figures are there in 3.1 + 1.222 ?

A
1

B
2

C
4

D
15
Question 5
1 / -0

How many significant figures are there in 1.000 × 10³?

A
4

B
8

C
1

D
12
Question 6
1 / -0

Each side of a cube is measured to be 6.154 m, what is the volume of the cube to appropriate significant figures?

A
233.1 m³

B
233.06 m

C
233.10 m³

D
233.063 m³
Question 7
1 / -0

The least count of an instrument is 0.01 cm. Taking all precautions, the maximum possible error in the measurement can be

A
0.005 cm

B
0.001 cm

C
0.01 cm

D
0.02 cm
Question 8
1 / -0

The least count of a stop-watch is 1/5 second. The time of oscillation of a pendulum is measured to be 25 seconds. Minimum percent error in the measurement of time will be

A
0.1%

B
0.8%

C
1.3%

D
8%
Question 9
1 / -0

A piece of a metal has volume 20 cc and mass 290 g. The density of the metal will be

A
145 g cm^-3

B
14.5 g cm^-3

C
194 g cm^-3

D
19.47 g cm^-3

Solution

Given, Volume = 20 cc
Mass = 290 g
Density = Mass ÷ Volume = 290 ÷ 20 = 14.5 gcm^-3
Question 10
1 / -0

The density of a metal is 18.5 gm cm^-3. If the volume of metal is 14 cc, then the mass of the metal is

A
259 cc

B
259 gm

C
259 cm³

D
259 cm^-3

Solution

Given, Density = 18.5 gcm^-3
Volume = 14 cc
We know, Density = Mass ÷ Volume
Mass = Density x Volume
= 18.5 x 14 = 259 gm

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Units and Measurements Test - 2

Result

Units and Measurements Test - 2

Score

-

Rank

-

SHARING IS CARING

Question 1

109 cm

10-6 cm

10-7 cm

10-9 cm

Solution

Question 2

5974 × 1021 kg

5974.01 × 1021 kg

5.97 × 1024 kg

6 × 1024 kg

Question 3

4

6

7

12

Question 4

1

2

4

15

Question 5

4

8

1

12

Question 6

233.1 m3

233.06 m

233.10 m3

233.063 m3

Question 7

0.005 cm

0.001 cm

0.01 cm

0.02 cm

Question 8

0.1%

0.8%

1.3%

8%

Question 9

145 g cm-3

14.5 g cm-3

194 g cm-3

19.47 g cm-3

Solution

Question 10

259 cc

259 gm

259 cm3

259 cm-3

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.

10⁹ cm

10^-6 cm

10^-7cm

10^-9 cm

5974 × 10²¹ kg

5974.01 × 10²¹ kg

5.97 × 10²⁴ kg

6 × 10²⁴ kg

233.1 m³

233.10 m³

233.063 m³

145 g cm^-3

14.5 g cm^-3

194 g cm^-3

19.47 g cm^-3

259 cm³

259 cm^-3