Force and Pressure

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Force and Pressure by Mind Map: Force and Pressure

1. Force

1.1. can effect an object

1.1.1. shape

1.1.1.1. e,g, a ball of plasticine can be made into other shapes

1.1.2. size

1.1.3. velocity

1.1.3.1. e.g a boy uses his legs to stop a moving ball

1.2. types of forces

1.2.1. gravitational force

1.2.1.1. occurs between any 2 object

1.2.1.2. is a force pulls the objects towards the earth

1.2.1.3. weight

1.2.1.3.1. depends on the force of gravity pulling that object

1.2.1.3.2. measured in Newtons

1.2.1.3.3. the greater the force of gravity pulling an object , the heavier the object

1.2.2. elastic spring force

1.2.2.1. occurs when something is stretched or compressed .

1.2.3. frictional force

1.2.3.1. occurs when 2 surfaces comes into contact

1.2.3.2. ways to reduce friction

1.2.3.2.1. lubrication

1.2.3.2.2. ball bearings

1.2.3.3. produces heat

1.2.3.3.1. causes wear and tear of objects

1.2.4. magnetic force

1.2.4.1. magnet can attract metals made of steel , iron , cobalt , nickel

1.2.4.2. occur when unlike poles of magnet attract or like poles of magnets repel .

1.3. measured using

1.3.1. force meter / newton meter

2. Pressure

2.1. measured in Pascal or N/m^2

2.2. the amount of force exerted perpendicularly per unit area

2.3. effected by 2 factors

2.3.1. force

2.3.2. area

3. New node