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Physics 9 Chapter 7 - Properties of Matter - 15
1.
Which of the following change in atmospheric pressure predicts a poor weather?
a) Minor but rapid decrease in atmospheric pressure
b) A rapid increase in atmospheric pressure
c) A gradual increase in atmospheric pressure
d) A sudden fall in atmospheric pressure
2.
If we take a pressure sensor in a liquid, then the pressure of the liquid varies with the ...............of the pressure sensor?
a) epth
b) Area of cross-section
c) Length
d) Width
3.
What is the formula for liquid pressure at depth h?
a) Pressure = ρ / h
b) Pressure = (ρ g) / h
c) Pressure = ρ g h
d) Pressure = ρ / (g h)
4.
The pressure of a liquid ..............with depth?
a) Sometimes decreases
b) None of these
c) Always decreases
d) Increases
5.
For which of the following substances, Pascal’s law holds?
a) All of these
b) Plasma
c) Gases
d) Solids
6.
For which of the following substances, Pascal’s law holds?
a) All of these
b) Plasma
c) Liquids
d) Solids
7.
Which of the following law is applied in automobiles?
a) ascal’s law
b) Joule’s law
c) Newton’s law
d) Ohm’s law
8.
Which of the following law is applied in hydraulic jack?
a) Joule’s law
b) ascal’s law
c) Newton’s law
d) Ohm’s law
9.
In which of the following machines, Pascal’s law is applied?
a) Hydraulic brake system
b) Hydraulic jack
c) All of these
d) Automobiles
10.
Which of the following law is applied in hydraulic brake system?
a) Joule’s law
b) Newton’s law
c) ascal’s law
d) Ohm’s law
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