What is when a 1kg mass has an acceleration of 1ms-2
The Ohm
Gravity
The Newton
A Moment
What type of quantity that has both size and direction?
Magnitude
Vector
Scalar
Force
Newton's 1st Law: An object will remain or at a in a straight line until an external force acts on it, so the resultant force is .
Momentum =
Newton's 2nd Law: Rate of is proportional to
Newton's 3rd Law: If object A exerts a force on object B, then object B exerts an and force on object A.
Acceleration:
Speed is the rate of change of displacement
Velocity is the rate of change of displacement
KE: Energy due to movement velocity force speed( movement, velocity, force, speed ) which depends on gravity force mass direction( gravity, force, mass, direction ) and speed. The equation is mgh ma 1/2mv^2 u + at( mgh, ma, 1/2mv^2, u + at )
GPE: energy due to above ground, depends on (G.F.S). The equation is .
Energy needed to move a force of 1N a distance of 1m in the direction of the force. This describes the
Which of these describes Power?
A joule per second
The rate of work done
energy/time
force x distance
Watt: a
Work Done:
Centre of Gravity: The where all of the of an objects
What is true for the Principle of Conservation of Energy?
Energy cannot be created or destroyed
Energy can be transformed from one form to another
Lost energy is always destroyed
Energy can be created from burning fuel
Moment:
Current: of particles
The coulomb: The (flowing past a point) in when the is
Conventional Current is the flow of positive charge negative charge protons( positive charge, negative charge, protons ) from positive to negative negative to positive( positive to negative, negative to positive )
Charge=
Voltage is
Ohm's Law: is to provided that all remain
EMF is from energy to energy.
Kirchhoff's 1st Law: The sum of the is to the sum of the
Kirchhoff's 2nd Law: The sum of the e.m.f.s is the sum of in a
Resistance is
An ohm is the of
Resistivity = . Resistivity is the with a . Resistivity is measured in .
