random
what is a concave lens
parallel light waves that curve outwards and diverge
what is mechanical energy
sum of potential energy and kinetic energy.
what is nuclear energy
nuclear reactions that release nuclear energy to generate heat
what is conduction
heat or electricity is directly transmitted through a substance
what is a mixture
substance made by mixing other substances together.
what is a convex lens
glass surface that bulges outwards in the center giving the classic lentil-like shape
what is chemical energy
potential of a chemical substance to undergo a transformation through a chemical reaction to transform other chemical substances.
what is sound energy
related with the vibration of matter
what is convection
movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.
how many elements are on the periodic table
118
what are lenses
transparent piece of glass or plastic with at least one curved surface
what is thermal energy
internal energy of a system; heat or sensible heat, which are defined as types of transfer of energy;
what are the two types of energy
potential and kinetic
what is radiation
emission of energy as electromagnetic waves or as moving subatomic particles
what is matter
physical substance in general
what are the two types of lenses
concave and convex
what is electrical energy
energy derived from electric potential energy or kinetic energy
what is potential energy
energy possessed by a body by virtue of its position relative to others
what is an element
each of more than one hundred substances that cannot be chemically interconverted or broken down into simpler substances
what are waves
disturbance that transfers energy through matter or space
what does MCTEENS stand for
mechanical, chemical, thermal, electrical, electromagnetic, nuclear, and sound
what is electromagnetic energy
waves of the electromagnetic field
what is kinetic energy
being in motion
what is a compound
composed of two or more separate element
what is motion
change in position