Electricity And Magnetic

Question 1

Proton mass

Answer 1

1.67x10-27kg

Question 2

Proton charge

Answer 2

1.6x10-19 C

Question 3

Mass neutron

Answer 3

Mass proton

Question 4

Does electric charge have continuous values

Answer 4

No continuous values

Question 5

In electric charge when do electrons lose and gain

Answer 5

Postively charged ions lose electrons
Negatively charged ions gain electrons

Question 6

Electrostatic charge

Answer 6

Combing transfers electrons from hair to comb by FRICTION.
Comb resulting to negative charge and positive charge on hair

Question 7

Conservation of charge

Answer 7

Isolated systems, charge conserved
Charge made from energy

Question 9

distribution on a conductor

Answer 9

similar charges repel. distributed on surface of conductor

Question 10

coulomb’s law

Answer 10

force between two charged objects

Question 11

electrical conductors

Answer 11

electron moves easily. good conductors are metal

Question 12

electrical nonconductors (insulator)

Answer 12

electrons don’t move easily. (rubber, glass, plastic)

Question 13

electric circuit

Answer 13

potential=potential energy. there must be separation of charge maintaining potential difference

Question 14

electric current

Answer 14

flow of charge. moving electrons. high voltage. battery for current to flow

Question 15

current

Answer 15

number of electrons passing through per second

Question 16

water analogy

Answer 16

number of water molecules passing per second

Question 17

power and energy in circuits

Answer 17

power= rate where electrical current works

Question 18

magnets and its poles

Answer 18

every magnet has ends of poles but you cant split poles

Question 19

source of magnetic field

Answer 19

electrons in atoms produce magnetic field that cancel one another

Question 20

permanent magnets

Answer 20

magnetic fields cancel eo and neutralize magnetic effects. grouped in region called magnetic domain

Question 21

earth’s magnetic field

Answer 21

from flowing iron/nickel core.

Question 22

magnetic field in space

Answer 22

from moving electric charge

Question 23

generators

Answer 23

axle with many wire loops that rotate in magnetic field. by water turbine

Question 24

megnetic field on sun

Answer 24

plasma, iron fillings

Question 25

earth’s magnetosphere

Answer 25

solar wind distorts magnetic field. electrons and protons make gases glow

Question 26

coronal loops

Answer 26

hot glowing plasma on sun

Question 27

solar wind

Answer 27

electrons, protons, neutrons expelled by flares

Question 28

aurorae on earth

Answer 28

electrons from sun ionize N and O to glow

Question 29

ionosphere

Answer 29

the aurora borealis

Question 30

aurora in solar system

Answer 30

earth, jupiter, saturn