Thursday, August 14, 2008

Phyics assignment

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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