ICP chapter 13-14 quiz

work

transfer of energy as result of motion

transfer of E by mechanical means

work formula

force x distance

W=fd

work unit

joules

N x m

kg x m^2/s^2

power

how fast the work is done

power formula

work/time

W/t

power unit

Watt

J/s

kg x m^2/s^3

energy

ability to do work or cause a change in itself or its environment

5 types of energy

mechanical

thermal

electromagnetic

chemical

nuclear

mechanical energy

energy of a moving object

thermal energy

heat, temp

electromagnetic energy/ radiant energy

light and colors, x-rays

chemical energy

bonds between atoms

nuclear energy

nuclear power plants, radioactivity

kinetic energy

energy in the form of motion

kinetic energy formula

KE=1/2mv^2

kinetic energy unit

joules

kg x m^2/s^2

potential energy

energy due to position or condition

gravitational potential energy form

weight x height

potential energy unit

joules

kg x m^2/s^2

law of conservation of energy

energy can change from one form to another

energy can’t created/destroyed

total energy in universe is constant

PE(top)=KE(bottom)

KE(top)=PE(bottom)