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Physics 9 Chapter 1 - Physical Quantities and Measurements - 4
1.
The ......................is/are the application(s) of scientific principles?
a) Natural philosophy
b) Science
c) All are correct
d) Technologies
2.
On which of the following principles, a car is made?
a) Mechanics
b) Sound
c) Light (optics)
d) Thermodynamics
3.
On which of the following principles, a refrigerator is made?
a) Mechanics
b) Sound
c) Thermodynamics
d) Light (optics)
4.
Which of the following makes it easy to lift heavy objects?
a) Electricity
b) Vacuum-cleaners
c) Pulleys
d) Air-conditioners
5.
Electricity is used to get.....................?
a) Heat
b) Light
c) Mechanical energy
d) All are correct
6.
Which of the following energy drives fans and electric motors?
a) None of these
b) Potential energy
c) Kinetic energy
d) Mechanical energy
7.
Which of the following is the mean of transportation?
a) Car
b) TV
c) Telephone
d) Radio
8.
Which of the following is the mean of communication?
a) Radio
b) All of these
c) Telephone
d) TV
9.
Radio, TV and computer are the results of applications of.....................?
a) Chemistry
b) Geology
c) Physics
d) Astronomy
10.
What a mobile phone can do for us?
a) To lift heavy loads
b) To get latest worldwide information
c) Allows us to contact people anywhere
d) Both b and c
11.
Which of the following are the uses of mobile phones?
a) We can send and receive messages
b) We can use it as a calculator
c) All of these
d) We can take and save pictures
12.
What is the harmful effect of physics on us?
a) Wind turbines
b) Deadly weapons
c) Environmental pollution
d) Both b and c
13.
What are the measureable quantities called?
a) Geological quantities
b) Chemical quantities
c) Physical quantities
d) Bio-quantities
14.
Which of the following is NOT the physical quantity?
a) None of these
b) Length
c) Time
d) Mass
15.
How many characteristics a physical quantity possesses?
a) Four
b) Three
c) Five
d) Two
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