Answer:
Energy and Work unit is Joules, J.
Work is the product of force and distance.
No, energy can't be created or destroyed but it can be transformed from one form to another.
Power is the amount of work done per unit time.
Time is essential to power because power can only be measured after a certain amount of time has passed.
Power unit is Watts, W.
Examples of things measured in watts are electricity, light bulb power, microwave ovens power.
Two main types of energy are Kinetic energy and Potential energy.
Kinetic energy is the energy of motion.
It comes from the Greek word kinētikos meaning of motion.
Kinetic energy depends in mass and velocity.
Kinetic energy is directly proportional to mass.
Kinetic energy is directly proportional to the square of velocity.
Bowling ball bas higher kinetic energy.
Because mass is directly proportional to kinetic energy thus the larger the mass the greater the kinetic energy.
The bowling ball with the larger mass.
Potential energy results from position or state of a body.
Gravitational potential energy depends on the mass of the body and height of an object.
P.Eg = m×h×g
Elastic potential energy is caused when objects are deformed or stretched.
Examples; Spring and coiled rubber band.
By increasing the stretch of the bow.
= P.E + K.E
There's motion involved and work is done to change an object's position off the ground.
Examples; moving car and wrecking ball.
By increasing the raising point of swinging (that is angle of elevation must be large).
Heat energy.
Molecules in an object.
Examples; Frying eggs and toasting bread.
Flowing of electrons.
Examples; current flow and lightning.
Stored in the bonds in atoms, elements, molecules or compounds.