Energy stores and systems

Question 1

Energy

Answer 1

It is never created or destroyed it is only transferred between different forms and objects

Question 2

Name all the type of enrergy stores

Answer 2

Thermal (heat energy)

Gravitational potential position in gravitational field)

Elastic energy hold in already stretched spring

Kinetic (movement or motion)

Nuclear (from breaking atoms)

Electrostatic

Chemical (held in chemical bonds)

Magnet

Question 3

Different ways energy can be transferred?

Answer 3

Mechanically

Heating

Electrically

Light

Radiation

Sound

Question 4

What do we call the collection of an objects mass?

Answer 4

A system

Question 5

What happens when a system changes?

Answer 5

Energy is transferred

Question 6

What can an open system do

Answer 6

The matter can exchange energy with ‘the outside world’ (outside of system)

Question 7

What is a closed systems?

Answer 7

It is a system that does not allow matter or energy to come or leave the system

Question 8

What are the 2 types of work done

Answer 8

Mechanical using a force to move object (kicking ball)
and
Electrical it is done when current flows to overcome the resistance