ENERGY VOCAB Flashcards
to win science
MOTION
motion is when something’s position changes in relation to another object
GRAVITATIONAL POTENTIAL ENERGY
gravitational potential energy is the energy stored in an object as the result of its vertical position or height
ELECTRICAL ENERGY
electrical energy is the energy of electrical charges
from the flow of charged particles, such as electrons, through a conduct
EQUATION FOR MECHANICAL ENERGY
MECHANICAL = POTENTIAL + KINETIC
ENERGY
energy is the ability to do work
FORCE
force is a push or a pull
EQUATION FOR WORK
WORK = FORCE x DISTANCE
(W = F x D)
EQUATION FOR KINETIC ENERGY
KINETIC = ONE HALF x MASS x SPEED/VELOCITY squared
(K = 1/2 x M x V squared)
EQUATION FOR GRAVITATIONAL POTENTIAL ENERGY
GRAVITATIONAL = WEIGHT x HEIGHT
(G = W + H)
LAW OF CONSERVATION OF ENERGY
the law of conservation of energy states that energy can neither be created nor destroyed - only converted from one form of energy to another
ELASTIC POTENTIAL ENERGY
elastic potential energy is energy stored as a result of applying a force to deform an elastic object. the energy is stored until the force is removed and the object springs back to its original shape, doing work in the process
WORK
something produced or accomplished by effort, exertion, or exercise of skill
EQUATION FOR POWER
POWER = WORK/TIME
(P = W/T)
MECHANICAL ENERGY
mechanical energy (kinetic energy or potential energy) is the energy of either an object in motion or the energy that is stored in objects by their position
KINETIC ENERGY
kinetic energy is the energy an object has because of its motion
THERMAL ENERGY
the total potential energy & kinetic energy of particles in an object
POTENTIAL ENERGY
potential energy is when an object has the potential to do work
CHEMICAL ENERGY
chemical energy is defined as the energy which is stored in the bonds of chemical compounds (molecules and atoms). it is released in the chemical reaction and mostly produces heat as a by-product, known as an exothermic reaction
POWER
power is the rate at which work is done
NUCLEAR ENERGY
nuclear energy is a form of energy released from the nucleus, the core of atoms, made up of protons and neutrons. this source of energy can be produced in two ways: fission – when nuclei of atoms split into several parts – or fusion – when nuclei fuse together
ELECTROMAGNETIC ENERGY
electromagnetic energy is radiant energy that travels in waves at the speed of light. It can also be described as radiant energy, electromagnetic radiation, electromagnetic waves, light, or the movement of radiation
