energy

Question 1

battery

Answer 1

a device that stores chemical energy and converts it to electrical energy

Question 2

energy

Answer 2

the ability to do work

Question 3

watt

Answer 3

unit of power measuring electric flow

Question 4

electricity

Answer 4

form of energy resulting from the existence of charged particles

Question 5

joule

Answer 5

measuring of capacity to do work or heat

Question 6

conductor

Answer 6

allow electrons to move through them more easily. The best conductors are metals.

Question 7

current

Answer 7

current is the rate of flow of negative chargers in an electric current.

Question 8

alternating current

Answer 8

the value of the quantity and direction of the current is not constant; it changes at a regular interval

Question 9

direct current

Answer 9

the electric current that flows consistently in one direction

Question 10

semiconductor

Answer 10

it conducts some bad and others good

Question 11

transformers

Answer 11

a device that transfers electric energy from one current to the other

Question 12

ions

Answer 12

an atom or molecule with a net electric charge

Question 13

electrode

Answer 13

good conductors of electricity that are usually connecting nonmetals.

Question 14

catalyst

Answer 14

a substance that changes the rate of a chemical reaction

Question 15

power

Answer 15

the rate at which energy is transferred by an electric circut

Question 16

Ohm’s Law

Answer 16

volts = resistance x current

Question 17

parallel circuits

Answer 17

multiple pathways for the branches of electricity to flow

Question 18

voltage

Answer 18

a pressure from an electrical circuit power source that pushes charged electrons

Question 19

series circuit

Answer 19

only one path for the electric current to follow

Question 20

energy transformation

Answer 20

the change of energy from one form to another

Question 21

resistance

Answer 21

the measure of how difficult it is for electrons to floe through material

Question 22

insulator

Answer 22

a material in which electrons cannot move from place to place

Question 23

what is the difference between a series circuit and a parallel circuit?

Answer 23

In a series circuit, the components are connected in a line, and the same current flows through all of them. In a parallel circuit, the components are connected so that each has its own separate branch, and the same voltage is applied to each component.

for series circuit is where there is only one path for electricity to flow

parallel circuits and multiple paths

Question 24

what is the difference between endothermic and exothermic?

Answer 24

Endothermic reactions are chemical reactions in which the reactants absorb heat energy from the surroundings to form products. An exothermic reaction is when energy is released in the form of light or heat. The energy is absorbed from the surroundings into the reaction.

endothermic absorbs heat, exothermic releases heat

Question 25

kinetic energy

Answer 25

the energy an object has because of it’s motion

Question 26

electric current

Answer 26

a steady flow of electrons through a conductor measured in units of ampers

Question 27

Law of Conservation of Energy

Answer 27

energy cannot be created nor destroyed only changed in form

Question 28

Potential energy

Answer 28

the energy that comes from position or condition

Question 30

circuit

Answer 30

a circuit is a closed path through which an electric current can flow