Energy

Question 1

Types of energy stores

Answer 1

magnetic
internal (thermal)
chemical
kinetic
electrostatic
elastic potential
gravitational potential
nuclear

Question 2

Magnetic

Answer 2

The energy stored when repelling poles have been pushed closer together or when attracting poles have been pulled further apart.

Question 3

Internal

Answer 3

The total kinetic and potential energy of the particles in an object, in most cases this is the vibrations - also known as the kinetic energy - of particles. In hotter objects, the particles have more internal energy and vibrate faster.

Question 4

Chemical

Answer 4

The energy stored in chemical bonds, such as those between molecules.

Question 5

Kinetic

Answer 5

The energy of a moving object

Question 6

Electrostatic

Answer 6

The energy stored when repelling charges have been moved closer together or when attracting charges have been pulled further apart.

Question 7

Elastic potential

Answer 7

The energy stored when an object is stretched or squashed

Question 8

Gravitational potential

Answer 8

The energy of an object at height.

Question 9

Nuclear

Answer 9

The energy stored in the nucleus of an atom.

Question 10

Energy transfers

Answer 10

Energy can remain in the same store for millions of years or sometimes just for a fraction of a second. There are energy transfers going on all the time

Question 11

Transferring energy

Answer 11

mechanical work - a force moving an object through a distance electrical work - charges moving due to a
potential difference heating - due to temperature difference caused electrically or by chemical reaction
radiation - energy transferred as a wave, eg light and infrared - light radiation and infrared radiation are
emitted from the sun

Question 12

Energy flow diagrams

Answer 12

used to show how energy is transferred from one store to another. Sankey Diagram