WorksheetsCharge and Current Quiz
Total questions: 17
Worksheet time: 9mins
Protons have a _____ electrical charge; electrons have a ______ electrical charge.
positive; negative
negative; positive
positive; neutral
neutral;negative
Opposite charges ______, and like charges _______
attract; repel
repel; attract
Charging by ______ is the rearrangement of electrons on a neutral object caused by a nearby charged object.
induction
conduction
friction
________ are materials that do not allow electric current to pass through easily
insulators
conductors
resistors
_______ is the accumulation of electrical charges on an object
static electricity
dynamic electricity
compound electricity
Current is usually the flow of ______.
electrons
protons
neutrons
Charges flow from ______ voltage to _____ voltage
high:low
low:high
The tendency for a material to oppose the flow of electrons is called ________.
resistance
opposition
stopflow
Making wires thinner, longer, or hotter _______ the resistance.
increases
decreases
has no effect on
Identify the following material as a conductor or insulator:
Rubber
conductor
insulator
Identify the following material as a conductor or insulator:
Metal
conductor
insulator
Identify the following material as a conductor or insulator:
Plastic
conductor
insulator
Identify the following material as a conductor or insulator:
styrofoam
conductor
insulator
Identify the following material as a conductor or insulator:
skin
conductor
insulator
What is the potential difference (voltage) if a resistance of 20 ohms produces a current of 10 amperes?
200 V
130 V
908 V
1,098 V
What is the current produced by a potential difference of 210 volts through a resistance of 3 ohms?
70 amps
10 amps
35 amps
4.6 amps
Which of the following is a circuit with two light bulbs wired in a parallel to each other, and a third light bulb in series to the other two, with a battery and a switch to turn the whole circuit off?
