WorksheetsPHYSICS FORM 5 PRESSURE
Total questions: 30
Worksheet time: 15mins
What is the equation used to calculate pressure?
force/mass
area/force
mass/volume
force/area
Which diagram represents the correct force of the fluid acting on a cube?
Pressure in liquids are affected by the following except
depth, h
density, ρ
mass, m
gravity, g
What is the formula for density?
mass × volume
mass / volume
mass + volume
mass - volume
S.I. unit for pressure is
Pa
N m-1
Psi
mm Hg
What will happen to the pressure in a liquid when its density increase?
lower
greater
not affected
The manipulated variable in the experiment as in the picture is
depth
density
gravity
mass
The diagram show two different liquids; water and liquid P in a U-tube. Which liquid is less dense?
water
liquid P
both liquids has same density
The density of water is 1000 kg m-1. Calculate the density of liquid P, in kg m-1.
(a)
All diagrams below are related to pressure in liquids except
Atmospheric pressure is the pressure due to the (a) of the layer of air acting on the surface of the earth.
The diagram shows a mercury barometer in a lab. At sea level, the height of mercury in the tube is
(a)
What is the name of the instrument in the diagram?
(a)
This principle states that the pressure exerted on the liquid are transmitted uniformly to all parts of the liquid.
Pascal's principle
Archimedes' principle
Bernoulli's principle
Which comparison is correct?
F1 = F2
F1 > F2
P1 = P2
F1 > F2
Given that A1 is 3 cm2 and A2 is 30 cm2, calculate F2 when F1 is 10 N.
(a)
Select all options that can increase F2.
Increase F1
Increase A1
Increase A2
Decrease A1
Decrease A2
What does a hydraulic system do?
decreases surface area
increases velocity
multiplies force
decreases pressure
Select all applications below that related to Pascal's principle.
Hydraulic jack
Hydraulic brake
Squeezing of toothpaste
Siphon
The upward force exerted by a liquid on an object immersed in or floating on the liquid is known as
gravity
pressure
normal force
buoyant force
Which one is the formula for buoyant force?
P = hρg
P1 = P2
FB = ρVg
Pgas = h cm H2O + Patm
Which direction is the buoyant force acts?
Left
Right
Upward
Downward
What did Archimedes shout with joy when he discovered the idea to determine the pureness of gold crown?
Yahoo!
Eureka!
Yeah, I'm the man!
Google!
The buoyant force is 0.00 N
The buoyant force is 19.62 N
The buoyant force is 29.43 N
The buoyant force is 49.05 N
An object is stationery in a fluid when
W = FB
W > FB
W < FB
Forces acting on the ship are in equilibrium. Select all true statements.
Weight of ship = buoyant force
Buoyant force = weight of water displaced
Weight of ship = weight of water displaced
Volume of sea water displaced = volume of the section of the ship immersed in sea water
When the bottle is squeezed, the trapped air in Cartesian diver will be __________. Thus, the water going _______ the diver and become ________.
compressed, into, heavier
compressed, out from, less heavy
decompressed, into, less heavy
decompressed, out from, heavier
Which of the following is not related to Archimedes' principle?
Vacuum cleaner
Plimsoll line
Submarine
Hot air balloon
Bernoulli's principle states that
when the velocity of a fluid increases, its pressure increases.
when the velocity of a fluid increases, its pressure decreases.
when the pressure of a fluid decrease, its velocity increases.
when the pressure of a fluid increase, its velocity increases.
A girl is blowing air between two balloons. The pressure between the two balloons will
increase
decrease
not affected
