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Physics for IGCSE & O level - Forces And Pressure (Section 8)

1
What are some common units for measuring pressure?
Answer
A
C
2
Which of the following is an example of a topic mentioned?
Answer
(B)
Equilibrium
3
Which statements are true about gas pressure?
Answer
A
B
C
4
What does the term 'torque' refer to?
Answer
(A)
The turning effect of a force
5
If you double the force applied to an object while halving the area, how does the pressure change?
Answer
(C)
The pressure quadruples.
6
What main concepts are shown at the beginning of the reading?
Answer
A
B
C
7
What is the relationship between the pressure and volume of a gas at a constant temperature?
Answer
(B)
Inversely proportional
8
What is the unit of density?
Answer
(C)
kg/m^3
9
According to Boyle's law, if you decrease the volume, what happens to the pressure (assuming constant temperature)?
Answer
(A)
Pressure increases
10
What is a key characteristic of elastic materials?
Answer
(C)
They return to their original form.
11
Which factor does not affect the air pressure inside a closed container?
Answer
(D)
The weight of the container
12
If a gas is compressed, what happens to its pressure (assuming constant temperature)?
Answer
(C)
Pressure increases.
13
Which law describes the relationship between force, area, and pressure?
Answer
(D)
The definition of pressure
14
Which of the following is NOT a factor that affects the pressure of a gas?
Answer
(D)
The color of the gas
15
In a liquid, pressure at a particular depth depends on which of the following?
Answer
(C)
The density of the liquid
16
What is presented about the concept of pressure?
Answer
A
B
17
Which factors affect the pressure exerted by a liquid?
Answer
A
B