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2.6 Bernoulli's Principle F5

Total questions: 40

Worksheet time: 7hrs 40mins

Name
Class
Date
1.

According to Bernoulli's Principle, when the wind speed is high, wind pressure is ________

a)

high

b)

low

c)

not enough information

d)

None of the above

2.
According to Bernoulli's Principle, when the wind speed is low, wind pressure is ________
a)
high
b)
low
c)
not enough information
d)
None of the above
3.
To generate lift, a blade is angled so the _________ pressure air moves under the blade.
a)
high
b)
low
c)
not enough information
d)
None of the above
4.
If you blow air between these two balloons, the pressure between the balloons would_________.
a)
Increase
b)
Decrease
c)
Stay the same
5.
The faster a fluid moves, the lower the pressure is in the moving fluid compared to the fluid not moving as fast. This is called
a)
Archimedes' Principle
b)
Bernoulli's Principle
c)
Pascal's Principle
d)
Vice Principle Snyder
6.
Whose Principle is used to describe why flight is possible?
a)
Newton
b)
Descartes
c)
Bernoulli
d)
Pascal
7.
Why is the top of an airplane wing curved?
a)
To create an area of low pressure above the wing
b)
To create an area of high pressure above the wing
c)
To create equal pressure above and below the wing
d)
To make the wing look really cool
8.
Think about Bernoulli's Principle.  What do you think will happen when you have running water next to a shower curtain?
a)
Curtain goes outward from the shower
b)
Curtain goes in towards the shower
c)
Curtain stays the same
d)
Water gets the curtain wet
9.
The design of a wing:
a)
causes the air above a wing to move faster than the air below the wing
b)
helps create lift
c)
creates a low pressure area above the wing
d)
all of these answers are correct
10.
Air travels  ______________ over the top of a wing.
a)
faster
b)
slower 
c)
doesn't move at all
d)
the same speed as
11.

What is the best depiction of Bernoulli's principle below?

a)

As the pressure of a fluid decreases, the speed increases

b)

As the pressure of a fluid increases, the speed increases

c)

As the pressure of a fluid decreases, the speed decreases

12.
According to Bernoulli, as the speed of a fluid increases the pressure exerted by that fluid ___
a)
Decreases
b)
Disappears
c)
Increases
d)
Stays the same
13.
Due to Bernoulli's principle, the pressure is ____ above an airplane's wing than below it.
a)
Lower
b)
Higher
14.
Bernoulli's principle creates ___ in airplanes
a)
Drag
b)
Lift
c)
Weight
d)
Friction
15.

What is a fluid?

a)

a non-solid state of matter as a gas or a liquid.

b)

A solid state of matter as an object

c)

the pressure caused by the weight of the atmosphere

16.

Bernoulli's Principle is used to explain the concept of _____.

a)

lift

b)

chemical reactions

c)

the engineering design process

d)

None of these things

17.

Objects tend to move toward areas of _________.

a)

higher pressure

b)

lower pressure

c)

chemical changes

d)

physical changes

18.

Which of the following is a fluid?

a)

water

b)

rocks

c)

wood

d)

none of these are fluids

19.

Which of the following is a fluid?

a)

dollar bill

b)

air

c)

clay

d)

none of these are fluids

20.

_______________ are both fluids.

a)

liquids and gases

b)

solids and liquids

c)

physical changes and chemical changes

d)

protons and electrons

21.

If the pressure is higher above the wing and lower below the wing, what will the airplane do?

a)

lift

b)

sink

c)

Neither lift or sink

22.

If the pressure is lower above the wing and higher below the wing, what will the airplane do?

a)

lift

b)

sink

c)

Neither lift or sink

23.

If the pressure is the same above the wing that it is below the wing, what will the airplane do?

a)

lift

b)

sink

c)

Neither lift or sink

24.
Fluids tend to move from an area of ______pressure to an area of ______pressure
a)
high, low
b)
low, high
c)
fluids don't flow
25.
When drinking soda from a straw, the soda rises up the straw because....
a)
you lower the pressure in the straw and the atmosphere pushes the soda up
b)
you raise the pressure in the straw and the atmosphere pushes the soda down
26.

The 2 factors that effect lift are:

a)

Shape of the body and the position relative to airflow

b)

The weight of the body and the surface area of the front

c)

The surface area and the speed of the wind

27.

How do Formula 1 cars use Bernoulli's principle? (choose 2)

a)

Formula 1 cars use an aerodynamic shape and material to reduce the friction on the car from air resisitance and drag.

b)

Formula 1 cars use aerodynamics to make the cars as ligth and slippery in the air as possible.

c)

Formula 1 cars use air flowing over a surface to push the car into the road to provide more grip.

28.

The magnus effect is used in which sports? (select as many as approprite)

a)

Golf

b)

Football

c)

Cricket

d)

Table Tennis

e)

Baseball

29.

Where will air move faster - above or below an airplane wing?

a)

above

b)

below

30.
Yang mana antara berikut adalah BENAR tentang Prinsip Bernoulli?
a)
Bendalir halaju tinggi tekanannya tinggi
b)
Bendalir yang halajunya rendah tekanannya rendah
c)
Bendalir yang halajunya rendah tekanannya tinggi
d)
Halaju bendalir tidak ada kaitan dengan tekanannya
31.
Pemain tenis menggunakan kaedah 'top spin' untuk memastikan 
a)
bola dipukul bergerak dengan lebih laju 
b)
bola melencong dari kiri ke kanan lawan
c)
bola lencong dari kanan ke kiri lawan
d)
bola lencong ke bawah masuk dalam gelanggang lawan
32.
Daya angkat yang diperolehi kapal terbang semasa bergerak dengan halaju tinggi disebabkan oleh 
a)
spoiler
b)
sayap kapal terbang
c)
aerofoil
d)
tujahan jet
33.

Sebaik sahaja udara dipam menerusi tiub A. Cecair di dalam kedua-dua lengan tiub U mencatatkan perbezaan ketinggian.

a)

Berlaku kerana tekanan di 1 lebih rendah

b)

Berlaku kerana halaju udara di 1 lebih tinggi

c)

Berlaku kerana halaju udara di 2 lebih tinggi

d)

Berlaku kerana tekanan di 2 lebih tinggi

34.

Antara alat berikut, yang manakah menggunakan prinsip Bernoulli?

a)
b)
c)
d)
35.

Jangkakan apa yang berlaku kepada bola-bola ping pong apabila udara dihembus di antara bola-bola ping pong itu.

a)

Bergerak menjauhi

b)

Bergerak mendekati

c)

Bergerak ke kiri

d)

Bergerak ke kanan

36.

If a hairdryer blows a stream of air between two soda cans hanging side by side, the soda cans will ____________________.

a)

rise

b)

move away from each other

c)

move toward each other

d)

not move

37.
An upward force.
a)
lift
b)
gravity
c)
life
d)
drag
38.
Contoh aplikasi yang manakah tidak ada kaitan dengan prinsip Bernoulli?
a)
Kapal terbang
b)
Bot Layar
c)
Sifon
d)
Karburator Injin
39.
Daya angkat yang diperolehi kapal terbang semasa bergerak dengan halaju tinggi disebabkan oleh 
a)
spoiler
b)
sayap kapal terbang
c)
aerofoil
d)
tujahan jet
40.
Nyalaan biru api penunu bunsen di makmal adalah kerana
a)
lebihan oksigen untuk pembakaran
b)
tidak cukup oksigen untuk pembakaran
c)
pembakaran tidak lengkap
d)
pembakaran yang lengkap

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