energy stores

Question 1

thermal

Answer 1

any object, hotter it is, more energy it has

Question 2

kinetic

Answer 2

anything moving, has energy in the store

Question 3

gravitational potential

Answer 3

anything in a gravitational field

Question 4

elastic potential

Answer 4

anything stretched,

Question 5

chemcial

Answer 5

anything that can release energy, by chemical reaction

Question 6

Magnetic

Answer 6

2 magnets that attract and repel

Question 7

electrostatic

Answer 7

2 charges that attract and repel

Question 8

nuclear

Answer 8

atomic nuclei release energy from this store

Question 9

movement

Answer 9

anything moving has energy in kinetic energy store. energy is transferred when object speeds up, transferred away when slows down.
This depends on mass and speed. greater mass, and faster, more energy there will be.

Formula is:
KE=1/2 x M x v2

Question 10

raised objects

Answer 10

lifting object in gravitational field causes transfer of enerfy to energy store of raised object. higher object, more energy transferred.
change in gravational potential energy= m x g x change in height.

Question 11

principle of energy

Answer 11

energy can be stored, transferred between stores, and dissipated, but never be created or destroyed.

Question 12

closed system

Answer 12

closed system is a system that can be treated completely on its own. total energy of closed system has no net change.

Question 13

mechanically

Answer 13

force acting on object,

Question 14

electrically

Answer 14

change doing work

Question 15

by heating

Answer 15

energy transferred from hotter to colder object

Question 16

radation

Answer 16

energy transferred by waves