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Application of forces and transfer of energy - Coggle Diagram
Application of forces and transfer of energy
Forces
It is an interaction between 2 or more objects resulting in the transfer of energy which makes a change in motion and/or condition.
Involves Push and Pull
Types of forces
Contact Forces
Requires physical contact for transfer of energy
Examples
Friction
Contact between object and surface
Causes wear and tear
Elastic force
Non-contact forces
Does not require physical contact for transfer of energy
Examples
Gravity
Weight vs Mass
Weight : How much gravitational force is acting on it.
N (Newtons)
Mass: How heavy or light it is.
Kg (Kilograms), g (Grams)
Magnetic force
Requires magnets
Attraction
Repulsion
Electrostatic force
Static electricity
Can cause change in state of rest/motion, change speed/direction of a moving object.
Pressure
Force exerted on an object
Pressure= Force/area
Factors affecting pressure
Weight and support
Surface area
Smaller the surface area, Higher the pressure
Larger the surface area, Lower the pressure
SI unit=Pa (Pascal) or N/m2
Pressure in liquids
The deeper into water, higher the water pressure
Submarine pressure system
Atmospheric pressure
Straw
Suction cups
Vacuum