Energy Ch 2

Question 1

Energy definition + measured in what units

Answer 1

Capacity to do work and produce a change
Joules

Question 2

Différent forms of energy (13)

Answer 2

Chemical, nuclear, solar, radiant (heat), electric, thermal. Mechanic, kinetic, potential, wind + tide, elastic, sound , hydraulic

Question 3

Thermal energy

Answer 3

Movement of particles
Heat
More substance + more thermal energy

Question 4

Radiant energy

Answer 4

Electromagnetic waves
Microwaves make water molecules move faster

Question 5

Solar radiation

Answer 5

Sun burn
Infra red
Ultra violet
Colours

Question 6

Chemical energy

Answer 6

Energy stored between bonds

Question 7

Combustion + example

Answer 7

Breaks bonds of molecules
Cellular respiration
Fire

Question 8

Mechanical

Answer 8

Energy associated with speed & mass of an object
Hydro electricity

Question 9

Potential ( mechanical ) + rules

Answer 9

Energy stored due to its height
Pe= (m) (g) (h)

Question 10

Kinetic energy +rule

Answer 10

Energy converted into movement
Ke= (1,2) (m) (v2)

Question 11

Law conservation of energy

Answer 11

Energy cannot be created nor destroyed but can change from one from to another

Question 12

Energy transfer + example

Answer 12

One place to another
Ex: power lines

Question 13

Energy transformation

Answer 13

One form to another
Ex: mr vans shocker