Chapter 22

Question 0

Static charge

Answer 0

Imbalance of electric charge on an object

Question 1

Ion

Answer 1

Atom that is positively or negatively charged because it has gained or lost one or more elements

Question 2

Electric force

Answer 2

Attractive or repulsive force exerted by all charged objects on each other

Question 3

Electric field

Answer 3

Surrounds every electric charge and exerts forces on other electric charges

Question 4

Insulator

Answer 4

Material in which electrons cannot move easily

Question 5

Conductor

Answer 5

Material in which electrons can move easily

Question 6

Electric discharge

Answer 6

Rapid movement of excess charge from one place to another

Question 7

Ohm’s law

Answer 7

states that the current in a circuit equals the voltage divided by the resistance in the circuit

Question 8

series circuit

Answer 8

circuit that has only one path for electric current to flow

Question 9

parallel circuit

Answer 9

circuit that has more than one path for electric current to follow

Question 10

electric power

Answer 10

rate at which electrical energy is converted into other forms of energy, measured in watts (W) or kilowatts

Question 11

electric current

Answer 11

the flow of electric charge, measured in amperes (A)

Question 12

voltage

Answer 12

a measure of the amount of electrical potential energy an electron flowing in a circuit can gain; measured in volts (V)

Question 13

circuit

Answer 13

closed conducting loop in which electric current can flow continually

Question 14

resistance

Answer 14

a measure of how difficult it is for electrons to flow in a material; unit is the ohm