The pictures were not very clear so i typed it out again for you guys. Enjoy X D
Chapter 3: Forces and Pressure
3.1 Pressure
- Introduction : define pressure and state the relationship between contact area and force
- In our daily life, there are situations which require high pressure as well as those which require low pressures. Suggest and describe :
i. applications involving high pressures and low pressures
ii. suggest practical ways to increase pressure and to reduce pressure
iii. your assignment must have graphics, diagrams or pictures for explanation
3.2 Pressure in liquid
- introduction
i. explain how pressure in liquid exists
ii. state the relationship between pressure in liquid, depths of liquid and density of liquid
- explain and describe some important application of liquid in pressure in our daily life with graphics, diagrams and pictures like :
i. public water supply system
ii. construction of reservoir dams
iii. locations of water tanks
iv. transfusion of glucose solution in the hospital
v. formation of a water fountain
vi. measuring blood pressure.
3.3 Gas Pressure and Atmospheric Pressure
- Introduction :
Explain existence of gas pressure and existence of atmospheric pressure
- Suggest some activities which shows the existence of atmospheric pressure
- State the characteristic of atmospheric pressure
- Describe ways instruments used for gas pressure and atmospheric pressure
- Describe some applications of atmospheric pressure like
i. drinking straw
ii. rubber sucker
iii. syringe
iv. siphon
v. life pump with the help of graphics, diagrams or pictures
3.4 Pascal’s Principle
- Introduction :
i. Define Pascal’s Principle
ii. Write the equation that relates output force, area of output of piston, input force and area of input piston for a hydraulic system.
- Describe the applications of Pascal principle like :
i. Hydraulic pumps
ii. Hydraulic jack
iii. Hydraulic brakes of a car with the help of graphics, diagrams and pictures.
3.5 Archimedes Principle
- Introduction
i. Explain the existence of buoyant force
ii. Define Archimedes’ Principle
iii. Write equations to relate buoyant force up thrust, apparent loss in weight of an object immersed in a fluid, volume of fluid displaced, density of fluid and gravitational strength.
- describe applications of Archimedes’ Principle in
i. the design of a ship
ii. submarines
iii. hot air balloon
iv. hydrometer
v. Cartesian Diver
vi. Plimsol line in a ship with the help of graphics, diagrams an pictures
3.6 Bernoulli’s principle
- Introduction
i. Define Bernoulli’s Principle
ii. Explain and compare the speed of fluid flow and its pressure in a uniform tube and a venturi tube
- Describe the application of Bernoulli’s Principle in everyday life like :
i. Bunsen burner
ii. Carburetor
iii. Filter pump
iv. The aerofoil
v. Insecticide spray
vi. Surfing
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