Force and Pressure

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Force and Pressure by Mind Map: Force and Pressure

1. FORCE

1.1. a push or pull

1.1.1. lifting

1.1.2. bending

1.1.3. stretching

1.1.4. twisting

1.1.5. squeezing

1.2. cannot be seen

1.3. can see its effect

1.3.1. change in size

1.3.2. change in shape

1.3.3. change in speed

1.3.4. start a object moving

1.3.5. change direction of an object

2. TYPES OF FORCES

2.1. gravitational force

2.1.1. weight

2.1.1.1. depends on the force of gravity acting on it

2.1.1.2. greater the force of gravity = increase object

2.1.2. pulls all object down to earth

2.1.3. also know as gravity

2.1.4. exist between 2 objects

2.2. magnetic force

2.2.1. attracts magnetic materials

2.2.2. exerted on other magnets

2.2.3. used in transportation

2.2.3.1. Maglev train

2.3. frictional force

2.3.1. when 2 moving objects are in contact

2.3.2. also known as friction

2.3.3. stops a moving object

2.3.4. produces heat

2.3.5. reducing friction

2.3.5.1. smooth surface

2.3.5.2. ball bearings

2.3.5.3. lubricants

2.3.5.4. streamlining

3. PRESSURE

3.1. certain amount of force applied to a certain area

3.2. smaller area = larger pressure

3.3. depends on

3.3.1. area

3.3.2. force

4. CALCULATION

4.1. force / area

4.2. force acting per unit area

4.3. SI unit

4.3.1. Pascal (Pa)

4.4. unit of area

4.4.1. square centimetre (cm²)

4.5. unit of pressure

4.5.1. Newton per square centimetre (N/cm²)

4.6. 1 Newton

4.6.1. 0.1kg x 10

4.7. unit of force

4.7.1. Newton (N)

4.8. measuring force

4.8.1. spring balance