Electricity Chapter 1&2 Study Cards

Question 1

neutral

Answer 1

objects with a positive and negative charge

Question 2

charge separation

Answer 2

when charged objects are brought close to neutral objects.

Question 3

laws of electrical charges

Answer 3

opposite charges attract each other

like charges repel

Question 4

static electricity

Answer 4

stops and does not flow

Question 5

current electricity

Answer 5

electricity flows continuously

Question 6

circuit

Answer 6

complete path that controls the flow of electricity

Question 7

Current

Answer 7

“I”

measured in amps

Question 8

voltage

Answer 8

“V”

measured in volts

“potential energy”

Question 9

resistance

Answer 9

“R”

measured in ohms

Question 10

conductors

Answer 10

materials that allow and electrical charge to move through easily

ex. metal

Question 11

insulators

Answer 11

does not allow electricity to flow through easily

ex. wood/ rubber

Question 12

fuses

Answer 12

help prevent electric shocks and overloads

melts if too much current passes through it

Question 13

dry cells

Answer 13

chemicals are in a paste

chemical reaction releases free electrons

Question 14

wet cells

Answer 14

includes two electrodes and a liquid electrolyte

usually an avid and zinc and copper

Question 15

primary cells

Answer 15

chemical reactions cannot be reversed

Question 16

rechargeable cells

Answer 16

chemical reactions can be reversed and the cell can be recharged

“secondary cells”

Question 17

battery

Answer 17

made of multiple cells

Question 18

superconductors

Answer 18

are perfect and have no resistance to electron flow

Question 19

resistor

Answer 19

allows electric current to pass but provides resistance to it

Question 20

rheostat

Answer 20

can increase or decrease the amount of current in a circuit by adjusting the portion of the resister the current travels through

Question 21

schematic

Answer 21

plan/ drawing of a circuit

Question 22

parallel circuit

Answer 22

each component has its own path for current

Question 23

series circuit

Answer 23

there is only one path for current