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Forces and motion - Coggle Diagram
Forces and motion
Equations to know
GPE = M x G x H
Kinetic energy = 1/2 x M x V2
Weight = Mass x Gravity
Density = mass / volume
Vectors + Scalars
Key words
Magnitude - The size of something
Vector - A vector is something with magnitude (size) and direction
Displacement - The quickest route from point A to B
Scalar - It only is magnitude
Examples:
Vector examples
Lift
Weight
Displacement
Force
Density
Drag
Momentum
Accelaration
Velocity
Scalar examples
Time
Distance
Mass
Area
Work
Temperature
Speed
Energy
Power
Orbital Motion / Resultant Force / Hookes Law
Resultant force
Resultant force is the singular force we can use to tell if forces are balanced upon acting on an object
Balanced forces
Newtons first law of motion says that if the forces of an object is balanced; the resultant force stays zero. If the object is at rest it stays stationary and if the object is moving it keeps moving at the same speed in the same direction
Un-balanced forces
Unbalanced forces are when a resultant force of an object is not 0, the forces are unbalanced The movement depends on the size and direction of such resultant force. For example, when an airplane takes off, the thrust of the engines is greater than the air resistance force. The resultant force is the difference between both forces.
Hookes Law
Hookes Law is that the extension of a spring is directly proportional to the force applied provided that the limit of proportionality is not exceeded/