FORM 5 - CHAPTER 2 : PRESSURE

• P_x = P_y = P_z

• P_x < P_y < P_z

• P_x > P_y > P_z

• F₂ < F₁

• F₂ = F₁

• F₂ > F₁

Diagram below shows the roof panel of a house is flying off in a strong wind.

Rajah di bawah menunjukkan bumbung sebuah rumah tercabut semasa ribut kencang.

Which principle explains this event?

Prinsip manakah menerangkan kejadian ini?

• Pascal’s Principle

  Prinsip Pascal

• Bernoulli’s Principle

  Prinsip Bernoulli

• Archimedes’ Principle

  Prinsip Archimedes

• Principle of conservation of energy

  Prinsip keabadian tenaga

• The buoyant force equals to the mass of the water displaced

  Daya keapungan sama dengan jisim air yang disesarkan

• The buoyant force equals to the weight of the apple

  Daya keapungan sama dengan berat epal

• The buoyant force equals to the volume of the water displaced

  Daya keapungan sama dengan isipadu air yang disesarkan

• The buoyant force equals to the mass of the apple

  Daya keapungan sama dengan jisim epal

• Q = R = P

• P > Q > R

• R > P > Q

• P > R > Q

Explain Bernoulli's principle.

Terangkan prinsip Bernoulli.

• When velocity increases, the pressure decreases and vice versa.

  Apabila halaju bertambah, tekanan berkurang dan sebaliknya

• When velocity increases, the pressure also increases and vice versa.

  Apabila halaju bertambah, tekanan juga bertambah dan sebaliknya

• The number of molecules in the container is increased

  Bilangan molekul di dalam bekas ditambah

• The mass of the molecules is increased

  Jisim molekul ditambah

• The speed of the molecules is increased

  Laju molekul ditambah

• The volume of the container is increased

  Isipadu bekas ditambah

Which diagram shows the correct liquid level in the U-tube?

Maklumat berikut menunjukkan aras cecair yang betul di dalam tiub-U?

• 
• 
• 
• 

• The pressure on the piston A is smaller than the pressure on the piston B

  Tekanan pada omboh a lebih kecil daripada tekanan pada omboh B

• The pressure on the piston a is bigger than the pressure on the piston B

  Tekanan pada omboh a lebih besar daripada tekanan pada ombah B

• The pressure on the piston A is equal to the pressure on the piston B

  Tekanan pada omboh A sama dengan tekanan pada omboh B

• A

• B

• C

• D