Nature of Energy
the ability to cause change
what is energy?
________can never be created or destroyed
(The law of conservation of) energy
the sum of kinetic and potential energy of the particles in an object.
what is thermal energy?
force x distance
formula for work
a push or a pull
what is a force?
Energy due to motion.
What is kinetic energy?
what is radiant energy?
a measure of the average kinetic energy of particles in an object
what is temperature?
the transfer of energy that occurs when a force makes an object move.
what is work?
for every action there is an equal and opposite reaction
what is Newton's third law of motion?
Stored energy.
What is potential energy?
the total amount of kinetic and potential energy in a system
what is mechanical energy?
the transfer of energy from one object to another.
what is heat?
work divided by time
formula for power
force = mass x acceleration
what is newton's second law of motion?
half of mass x velocity2
formula for kinetic energy
heat that comes from fire, sun, etc.
what is thermal energy?
transfer of energy through matter by direct contact of particles
what is conduction?
the rate at which work is done
what is power?
an object will maintain it's velocity unless acted on by an unbalanced force
what is newton's first law of motion?
height x acceleration due to gravity x mass
formula for potential energy
comes from releasing energy from the nucleus of an atom
what is nuclear energy?
transfer of energy by the movement of heated particles
what is convection?
1) object must move. 2)force must be applied in direction of movement.
what are the conditions that must be done to consider work done?
the rate of change of velocity
what is acceleration?