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Fluid pressure

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

When a person swims under water, water pressure is felt acting on the person's eardrums. The pressure is due to

a)

Less water above the person

b)

Large surface area of the swimmer

c)

Weight of the water above the person

d)

Volume of water

2.
What is the unit of measurement for pressure?
a)
pascal
b)
grams
c)
milliters
d)
meters
3.

When you increase your depth under water, the water pressure on your body

a)

increases

b)

decreases

c)

stays the same

4.
What decreases as you go up in the atmosphere?
a)
Altitude
b)
Atmosphere
c)
Meteors
d)
Air Pressure
5.

How do you Calculate Pressure

a)

Force(N)/Area(m2)

b)

Force(kg)/Area(mi2)

c)

Area(m2)/Force(N)

6.

Diagram shows the design of a dam. Why does the thickness of the dam increase with its depth?

a)

The design of this structure is stronger.

b)

Water pressure increases with depth.

c)

The cost of construction is lower.

d)

Water pressure acts uniformly in all directions.

7.
Where would you find the largest pressure?
a)
At the bottom of the ocean
b)
At the top of Mt Everest
c)
Close to ground on the Scotch oval
d)
In a rockpool on the Great Barrier Reef
8.

Which of the following is not the property of ideal fluid?

a)

It is incompressible

b)

Its flow is rotational

c)

It is non viscous

d)

Its flow is steady

9.

The SI unit of pressure is

a)

Nm

b)

Nm2

c)

N/m

d)

N/m2

10.

Formula for pressure due to liquid coloumn

a)

p= rρhr\rho h  

b)

p=rghp=rgh  

c)

p=ρghp=\rho gh  

d)

p=rρhp=r\rho h  

11.

According to pascals law the presssure applied to the fluid

a)

Increases if it is enclosed

b)

is transmitted unchanged to all the fluid particles

c)

is transmitted and changed

d)

decreases if it is enclosed

12.

Dimensional formula for pressure is

a)

MLT2MLT^{-2}

b)

ML2T1ML^2T^{-1}

c)

ML1T2ML^{-1}T^{-2}

d)

ML2T1ML^{-2}T^{-1}

13.

Pressure is a ......................... quantity

a)

Vector

b)

Scalar

14.

As we go deeper to the ocean, pressure.............

a)

increases

b)

decreases

c)

remains the same

15.

All fluids exert.......

a)

pressure in the direction of flow only

b)

pressure in the direction of force of gravity

c)

equal pressure in all directions

d)

equal pressure only in x, y and z planes