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Physics 9 Chapter 1 - Physical Quantities and Measurements - 12
1.
What is the multiplier of atto?
a) 10
-18
b) 10
-15
c) 10
-12
d) 10
-6
2.
......................prefixes are not used?
a) Double
b) Triple
c) Tetra
d) Single
3.
How many kms
-1
is present in 200 000ms
-1
?
a) 2000
b) 2
c) 20
d) 200
4.
How many kW are present in 4 800 000 W?
a) 48 kW
b) 480 kW
c) 4800 kW
d) 48000 kW
5.
How many MW are present in 4 800 000 W?
a) 4800 MW
b) 4.8 MW
c) 48 MW
d) 480 MW
6.
How many MHz are present in 3 300 000 000 Hz?
a) 330 Mhz
b) 33 Mhz
c) 3.3 MHz
d) 3300 MHz
7.
How many GHz are present in 3 300 000 000 Hz?
a) 3.3 GHz
b) 330 Ghz
c) 33 Ghz
d) 3300 GHz
8.
Which one of the following is the smallest quantity?
a) 0.01 g
b) 100 mg
c) 5000 ng
d) 2 kg
9.
5000 g is equal to...........?
a) 5 kg
b) 50 mg
c) 0.005 ng
d) 500 micro gram
10.
How many nm are present in 0.000 000 0081M?
a) 81 nm
b) 0.081 nm
c) 0.81nm
d) 8.1 nm
11.
What is the weight of 1.0 litre of water?
a) 10
5
g
b) 10
6
g
c) 10
3
g
d) 10
4
g
12.
What is the average weight of a human?
a) 10
3
g
b) 10
5
g
c) 10
4
g
d) 10
6
g
13.
What is the average weight of a uranium molecule?
a) 10
-16
g
b) 10
-14
g
c) 10
-22
g
d) 10
-24
g
14.
A simple but scientific way to write large or small numbers is to express them in some power of.........................?
a) Zero
b) Ten
c) Thousand
d) Hundred
15.
How many metres is moon away from the earth?
a) 3 840 000 m
b) All are correct
c) 384 000 m
d) 384 000 000 m
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