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General Physics - Coggle Diagram
General Physics
Forces and pressure
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Forces cause an increase in speed, a decrease in speed, change direction and start moving
Friction allows us to walk without slipping and slow down objects. However, there is wear and tear and cars are less efficient
Stop negative effects by wheels, ball bearings, lubricants, polished surfaces and air cushion. Enhance them by parachute and chalk
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Mass, weight and density
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Mass does not change, weight changes
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Turning forces
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Centre of gravity is calculated by poking dots and finding the intersect lines for irregular objects
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Work
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No work is done when the force s applied but the object does not move and also when it moves perpendicular to the force.
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Kinematics
Distance is scalar, displacement is vector
Different types of acceleration- increasing acc, decreasing acc, decreasing dec, decreasing dec
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Energy
KE: Energy of body due to its motion
GPE: Energy stored due to height from the ground
CPE: Energy stored in a substance due to position of atoms
EPE: Energy stored due to elastic deformation
Principle of conservation of energy states that energy cannot be created nor destroyed and can only be converted from one form to another. The total energy in an isolated system is constant.
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