Font size
WorksheetsFluids
Total questions: 45
Worksheet time: 1hrs 5mins
What is the SI unit use for hydraulic pressure?
Kg/m3
Pa
kg m-3
N m2
The upward force exerted by a fluid is called the...
buoyancy force
density force
fluidity force
normal force
If an object has a density of 3.6 g/mL and you put it into water (density =1.0g/mL,) will it sink or float?
sink
float
partially sink
partially float
What is Archimedes' Principle?
The buoyant force is equal to the weight of the object
The buoyant force is equal to the gravitational force of the fluid
The buoyant force is equal on all sides of a submerged object
The buoyant force is equal to the weight of the fluid displaced
The buoyant force is equal to the mass of the fluid displaced
The force exerted on a given area
pressure
muscle
potential
velocity
How does an object's density affect the buoyant force acting on it?
The more dense the object, the greater the buoyant force
The less dense the object, the greater the buoyant force
Density is equivalent to buoyant force
Object density has no effect on buoyant force
What is the equation to calculate pressure?
pressure = gravity ∕ weight
pressure = newtons ∕gravity
pressure = force∕ area
pressure = motion⁄ particles
What does viscosity mean?
How close the particles are together.
The amount of matter in a substance.
How easily a fluid flows.
How dense a fluid is.
Which principle do airplanes take advantage of to fly?
Archimedes' Principle
Bernoulli's Principle
Pascal's Principle
When force increases...
pressure increases
pressure decreases
pressure stays the same
pressure increases then decreases
When area increases...
pressure increases
pressure decreases
pressure stays the same
pressure increases then decreases
In a hydraulic machine, a force of 2.25 N is applied on the piston of area 5 cm2. what force is obtained on the bigger pistion of area 100cm2 ?
45 N
225 N
450 N
22.5 N
Calculate the pressure at the bottom of a cylindrical vessel filled with water.Area of cross section is 250 cm2. density of water is 1000 kg m-3. water is filled to a height of 10cm.
g = 10 ms-2
250 Pa
105 Pa
2500 Pa
1000 Pa
The small piston of a hydraulic lift has an area of 25 cm^2 and the large piston has an area of 625 cm^2 . What force must be applied to the small piston in order to lift a car weighing 14,000 N?
(a)
A 650 N diver weighs 500 N in sea. What is the buoyant force of the sea water?
(a)
In which direction is fluid pressure directed?
Up
Down
Sideways
In all directions
Materials that can flow and take the shape of their containers include…
Both gases & liquids
Liquids
Gases
Neither gases nor liquid
An object displaces a volume of fluid that…
Is equal to its own volume
Is less than its own volume
Is greater than its own volume
Is more dense than itself
An object weighing 30 N displaces a volume of water with a weight 20 N. What will the object do?
It will sink
It will float
It will fly
None of these answers
A helium-filled balloon will float in air because…
There is more air than helium
Helium is less dense than air
Helium is as dense as air
Helium is more dense than air
An object has a mass of 125 g and a volume of 100 mL. Will the object sink or float in water?
Sink
Float
Suspend
An object has a mass of 2.5 g and a volume of 10 mL. Will th object sink or float in water?
Sink
Float
Suspend
An object with a density of 1.5 g/mL is placed in a liquid with a density of 1.4 g/mL. Will the object sink or float?
Sink
Float
Suspend
An object has a mass of 20 g and a volume of 25 mL. Will the object sink, float or be suspended in a liquid with a density of .8 g/mL?
Sink
Float
Suspend
If an object has a mass of 144 g and 120 mL, which of the following liquids would the object float in? (Check all answers that apply)
Liquid A (Density of liquid = 1.1 g/mL)
Liquid B (Density of liquid = 1.3 g/mL)
Liquid C (Density of liquid = 1.5 g/mL)
If an object is neutrally buoyant it will ________.
sink
float
neither float or sink
objects cannot be neutrally buoyant...
The density of fresh water is 1 g/cm3.
Imagine the clay boat you just designed has a density of 1.5 g/cm3. What would happen to your boat if you placed it in fresh water?
sink
float
neutrally buoyant
no way of knowing what would happen
The density of fresh water is 1 g/cm3.
Imagine the clay boat you just designed has a density of exactly 1 g/cm3. What would happen to your boat if you placed it in fresh water?
sink
float
neutrally buoyant
no way of knowing what would happen
Density is the relationship between which two quantities?
Mass and volume
Mass and weight
Volume and weight
A brick weighs the most in.......
air
water
space
A cork in water will...
Floater
Sinker
Neutrally buoyant
Th ability to float is called __________.
buoyancy
displacement
gravity
According to the picture from left to right, which of the answers is correct?
neurally buoyant, positively buoyant, negatively buoyant
negatively buoyant, neutrally buoyant, positively buoyant
positively buoyant, neutrally buoyant, negatively buoyant
neutrally buoyant, negatively buoyant, positively buoyant
Which graduated cylinder has the highest viscosity
The graduated cylinder with the ball at 20mL.
The graduated cylinder with the ball at 30mL.
The graduated cylinder with the ball at 40mL.
The graduated cylinder with the ball at 50mL.
Fluids with very high viscosity flow very _______________________.
fast
not at all
slow
whenever it wants
Fluids with very low viscosity flow very _______________________.
fast
not at all
slow
whenever it wants
