unit D - section 1.0

Question 1

what is static electricity?

Answer 1

a stationary electric charge, which is the process of you becoming part of a short circuit and becoming neutralized

Question 2

What is a proton?

Answer 2

positively charged particle of an atom

Question 3

What is an electron?

Answer 3

negatively charged which orbits the nucleus of an atom

Question 4

What is a charge separation?

Answer 4

like charges are in separate areas of a neutral object.

Question 5

What is the electrical law?

Answer 5

charges of an atom either form attractive or repelled forces,
like charges will repel
unlike charges will attract

Question 6

what is electrical discharge?

Answer 6

transfer of electrical charge going from one object to another.

Question 7

what is electrical current?

Answer 7

particles moving in a steady and continuous flow, which can power electrical devices.
can only flow if there is an energy source like a plug/fuse
and has to have a complete path or circuit

Question 8

what is circuit?

Answer 8

a completed path that allows charged particles to go through.

Question 9

What is an ampere?

Answer 9

the unit shown of electrical current?

Question 10

What is a conductor?

Answer 10

a material in which electric charge can easily move through

Question 11

what is electrical energy?

Answer 11

energy of charged particles that are transferred when electrons travel

Question 12

what is voltage?

Answer 12

it shows how much electrical energy a charged particle carries.

Question 13

what is potential difference?

Answer 13

change in the potential energy at a reference point.

Question 14

What is volt?

Answer 14

the unit of voltage.

Question 15

what is load?

Answer 15

turns one form of energy into another.

Question 16

what is a voltmeter?

Answer 16

instrument which measures potential difference in volts.

Question 17

what is a short circuit?

Answer 17

accidental path made for extra current flow to flow through.

Question 18

what are insulators?

Answer 18

strongly resists the flow of electricity

Question 19

what are fuses?

Answer 19

breaks an electrical circuit when excess current flows through.

Question 20

what is a circuit breaker?

Answer 20

wire that heats up which causes the switch to turn off when excess current flows through

Question 21

what is an electro-chemical cell

Answer 21

package of chemicals to produce small amounts of electricity it produces electricity from chemical reaction.

Question 22

what is a dry cell?

Answer 22

a cell in which the electrolytes are in a form of a paste,which is in a sealed case.

Question 23

what are the 2 parts of a cell?

Answer 23

the electrolytes react with with 2 metals called electrodes,

Question 24

what is an electrolyte?

Answer 24

paste that conducts electricity due to the ions

Question 25

what is an electrode?

Answer 25

conductor which electric current enters or leaves

Question 26

what is a primary cell?

Answer 26

cell that produces electricity which a chemical reaction cannot be reversed

Question 27

what is a rechargeable cell?

Answer 27

cell that produces electricity in which chemical reaction can be reversed

Question 28

what is electrochemistry?

Answer 28

study of chemical reactions involving electricity

Question 29

what is electrolysis?

Answer 29

decomposition of a substance by an electric current