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Define work done, its equation, its regular and SI base unit
Product of the force and the distance travelled in the direction of the force, J, Joule, Nm, kgm²s^-2
W = Fd
W = work done, kgm²s^-2
F = force, kgms^-2
d = distance, m
What is the equations for work done using an angle?
W = Fdcosθ
W = Work done, kgm²s^-2
F = Force, N, kgms^-2
d = distance, m
What is energy?
The capacity to do work
State the conservation of energy
‘Energy cannot be created or destroyed, only transferred to other forms’
What is work done equal to?
Energy transferred
Define 1J
Amount of energy transferred when a force of 1N travels a distance of 1m in the same direction as the force
Describe gravitational potential energy
Energy of an object due its position in a gravitational field
Describe elastic potential energy
Energy stored as a result of a reversible change to its shape (stretched or pulled)
Describe chemical potential energy
Energy stored within the chemical bonds between atoms, its released when the atoms are rearranged
Describe nuclear potential energy
Energy stored within the nuclei of atoms, its released when the subatomic particles in the nuclei are rearranged
Describe electrical potential energy
Energy of electric charges due to their position in an electric field
Describe kinetic energy
Energy of a moving object with mass
Describe internal energy
The sum of the random potential and kinetic energies of atoms in a system
Describe light/electromagnetic energy
Energy of all electromagnetic waves, stored within oscillating electric and magnetic fields
Describe sound energy
Energy of mechanical waves due to the movement of atoms
Note 
Flashcard (102)