p1 energy

Question 1

energy

Answer 1

energy is always conserved is cannot be created or destroyed

Question 2

an object can have energy in the following stores

Answer 2

kinetic energy

Question 3

energy is measured in

Answer 3

joules (J)

Question 4

energy ___when objects interact

Answer 4

energy in energy stores changes when objects interact

Question 5

formular for kinetic energy
what each letter stands for and their unit

Answer 5

1/2 m v2

E=energy in (J)
M=mass in kg
v=speed (m/s) (velocity)

Question 6

What type of heating only occurs in solids

Answer 6

Conduction

Question 7

4 energy transferes

Answer 7

Mechanical work

Electrical work

Heating

Radiation

Question 8

What donmetals have that make them good conductors

Answer 8

Delocalised electrons

Question 9

Three methods of heating

Answer 9

Conduction

Convection

Radiation

Question 10

Describe the relationship beween force and extention for onjects thay obey hooks law

Answer 10

Direct proportionality

Question 11

What is described as the point beyond which hooked law is nolonger true when stretching materials

Answer 11

Limit of proportionality