Physics for IGCSE & O level - Forces And Pressure (Section 7)
1
In a liquid, how does pressure change with depth?
Antwoord(C)
Pressure increases with depth
2
What is the approximate value of 1 atmosphere of pressure in pascals?
3
Which of the following must be kept constant when using Boyle's law?
4
What is the relationship between force, pressure and area?
5
What is the pressure in a liquid independent of?
6
What is the approximate value of atmospheric pressure in pascals (Pa)?
7
How does the temperature of a gas relate to its pressure when volume and the amount of gas are constant?
Antwoord(B)
Temperature and pressure are directly proportional.
8
What are the factors that determine the pressure in a liquid?
9
What type of forces are discussed?
10
Which of the following is a real-world example demonstrating pressure?
11
Which of the following appears to be calculated?
12
Which topics are included in the introductory section?
13
What happens to the pressure exerted by a liquid at a particular depth if the density of the liquid is increased?
14
What is the formula for pressure?
15
In a liquid, where is the pressure the same?
16
What describes the behavior of an elastic material?
Antwoord(B)
It stretches and returns to its original shape.
17
What is the relationship between pressure and the area over which a force is applied?
18
What is the formula for calculating the pressure in a liquid at a certain depth?
Antwoord(B)
Pressure = Density * Gravity * Height
19
What does an elastic material do?
Antwoord(B)
Returns to its original shape
20
Which one of these terms are being used to describe something which turns?
21
What topics are introduced at the beginning?
22
What is the standard unit of force?
23
Which of the following statements is true regarding pressure in a liquid?
Antwoord(B)
Pressure is exerted equally in all directions.
24
What effect does increasing the temperature have on the pressure of a gas (assuming constant volume and amount of gas)?
25
What would you expect to see happening to the volume of the bubble as it rises through the water?
26
If the force increases, what happens to the pressure (assuming constant area)?
27
What happens to the volume of a bubble rising to the surface, assuming a constant temperature?
28
What is an example of a device that measures pressure?
29
What type of effect is mentioned?
30
If you increase the area over which a force is applied, what happens to the pressure?
31
If the temperature of a gas increases, and the volume stays constant, what happens to the pressure?
32
In the formula for pressure due to a liquid (p = ρgh), what does the symbol 'ρ' represent?
33
What is the formula for pressure?
34
What is the unit of pressure?
35
What is the formula used to calculate pressure?
36
Which term describes how a force affects an object's rotation?
37
Which factor determines pressure?
38
What is the approximate depth of a liquid that gives you the same pressure as 1 atm?
39
What are covered in relation to the subject of pressure?
40
Which of these are factors that can change the pressure of a gas?
41
If you increase the force applied over a certain area, what happens to the pressure?
42
What is the definition of pressure?
43
What are discussed in regard to pressure?
44
What happens to a gas pressure if its volume is expanded?
45
What unit of pressure is equivalent to Newtons per square meter (N/m²)?
46
What does the density of a liquid affect regarding pressure?
Antwoord(B)
The rate at which the pressure increases with depth
47
Which of the following is a key characteristic of atmospheric pressure?
48
Which statement is true about the pressure in all directions in a liquid?
Antwoord(A)
The pressure is the same in all directions at any depth.
49
What does the acronym 'atm' stand for in the context of pressure?
50
The force exerted by a gas on the walls of its container is due to:
Antwoord(B)
The collisions of the gas molecules with the container walls
