WorksheetsElectricity and Magnetism
Total questions: 20
Worksheet time: 10mins
Electric charges flow from ______ areas to _______ areas.
positive, negative
positive, neutral
negative, positive
neutral, negative
A material through which electrons do NOT flow easily is a(n) ____
insulator
fuse
conductor
circuit breaker
Which of the following could be used as an insulator?
plastic plate
silver spoon
copper wire
gold necklace
Vange is using a 9-volt battery to power a small device with a resistance of 0.2 ohms. What is the current produced by the battery?
1.8 amps
0.0222 amps
45 amps
8.8 amps
Elisha and Abbott are working on a school project to build a small electric motor and a generator. Which two areas of physical science should they focus on to understand the principles behind these devices?
sound and light
electricity and sound
light and magnetism
electricity and magnetism
Silver has a resistance of 0.0198 ohms. What voltage would produce a current of 100 amps?
1.98 V
0.000198 V
5,050 V
100.0198 V
In a science project, Joseph built a generator. The primary function of his generator is to convert _______
chemical energy to electrical energy
electrical energy to chemical energy
electrical energy to mechanical energy
mechanical energy to electrical energy
Xavien, Hallie, and Myron are comparing the voltage of their circuits. Which student's circuit contains the greatest voltage?
Henry's circuit with a current of 20 amps and a resistance of 16 ohms
Grace's circuit with a current of 10 amps and a resistance of 10 ohms
William's circuit with a current of 25 amps and a resistance of 16 ohms
Henry's other circuit with a current of 20 amps and a resistance of 10 ohms
Which of the following objects would NOT be a good insulator of electric charge?
skin
wood
plastic
rubber
The Law of Conservation of Charge states ______
charge can be created and destroyed but NOT transferred
charge cannot be created and destroyed but it can be transferred
charge cannot be created and destroyed and it cannot be transferred
none of these
Opposite charges _____. Like charges ______.
repel, attract
attract, repel
attract, attract
repel, repel
Electric charges flow from ____ voltage to _____ voltage
low to low
high to high
low to high
high to low
To increase the current, you should ____ voltage and _____ resistance
increase, increase
increase, decrease
decrease, decrease
decrease, increase
Charges can act at a distance by exerting a(n)
lightning bolt
magnetic field
electric field
baseball
What symbol is this?
light
switch
resistor
battery
What symbol is this?
light
switch
resistor
battery
What symbol is this?
light
switch
resistor
battery
What is the unit of resistance?
Ohm
Watt
Volt
Ampere
Which material has the highest conductivity?
Copper
Aluminum
Iron
Lead
What is the direction of electric current in a circuit?
From positive to negative
From negative to positive
It depends on the type of circuit
There is no direction of electric current
