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Resultant forces and other Physics things (Work Done (KW: Work done //…
Resultant forces and other Physics things
Gravity and weight
Mass - The amount of matter/particles that makes up the object
Mass (KG)= Weight (N)/ GFS (N/KG)
Weight - The force pulling the object towards the Earth's core
Weight (N)= Mass (KG) x Gravitational Field Strength (N/KG)
GFS (N/KG) = Mass (KG)/ Weight (N)
Work Done
Work done (J)= force (N) x distance (metres)
Force (N) = Work done (J)/ distance (m)
Distance (m) = force (N)/ work done (J)
KW: Work done // Force // Distance // Joule // Newton metres // Friction // Energy Transfer
Energy stores
Chemical
Nuclear
Elastic potential
Gravitational potential
Kinetic
Energy transfers
Radiation
Mechanical
Electrical
Heat or light
Electrical
Magnetic
Energy cannot be created or destroyed
Other forces stuff
Every action has an equal and opposite reaction
Types of forces
Friction
resistance when two surfaces rub over each other in the opposite direction
Air resistance
a force acting in the opposite direction of an object moving through the air
Gravity
Pulls anything with particles or energy closer together
Magnetism
a force produced by electrical charge that attracts or repels
Weight
The force pulling an object towards the Earth's core (N/kg)
Pressure
How much force is acting on an area (N/cm^2 or N/m^2)