electricity

Question 1

electron affinity

Answer 1

the tendency of a substance to hold on to the electrons. (usually seen in a chart of materials and their tendency to give electrons or gain electrons.)

Question 2

conductivity

Answer 2

the ability of materials to allow electrons to move freely.

Question 3

conductors

Answer 3

materials that allow electrons to change positions and are not tightly bound so they move away from the nuclei. (metals)

Question 4

insulators

Answer 4

materials that hold onto electrons and do not allow them to move easily. and are tightly bound to the nuclei so they resist movement. (wood, rubber, and plastic)

Question 5

static charge

Answer 5

the electric charge that builds up on the surface of an object.

Question 6

secondary cell

Answer 6

a cell that can be recharged

Question 7

voltaic cell

Answer 7

a source of energy that generates electric current through chemical reactions

Question 8

battery

Answer 8

a connection between two cells

Question 9

primary cell

Answer 9

a cell that can be used only once

Question 10

fuel cell

Answer 10

a cell that generates electricity through chemical reactions of fuel stored outside the cell

Question 11

electric circuit

Answer 11

a closed path along which electrons, powered by an energy source, can flow

Question 12

electrode

Answer 12

one of two metal terminals in a cell or battery

Question 13

electrolyte

Answer 13

a solution or paste that conducts charge

Question 14

solar cell

Answer 14

a cell that converts sunlight into electric energy