WorksheetsElectricity and Magnetism
Total questions: 37
Worksheet time: 1hrs 17mins
Name
Class
Date
1.
What happens if you cut a bar magnet in half?
a)
You get two North pole magnets
b)
You get two South pole magnets
c)
You get a North pole magnet and a South pole magnet
d)
You get two smaller magnets, each with a North and South pole
2.
What are the ends of a magnet called?
a)
East and west poles
b)
Left and Right ends
c)
North and South ends
d)
North and South poles
3.
What is electric force?
a)
Energy created by charged particles
b)
A force created by charged particles
c)
A force that results from magnets
d)
A contact force that results from electricity
4.
Which type of particle exert electric force?
a)
Positive charged particle
b)
Negative charged particle
c)
Neutral particle
d)
Both A and B
5.
What is an electromagnet?
a)
a magnet that creates an electric current
b)
a magnet created by an electric current
c)
a magnet that has an electric charge
d)
an electric charge that is magnetic
6.
What is the difference between a conductor and an insulator?
a)
An insulator allows electricity to flow through it easily and a conductor does not
b)
A conductor allows electricity to flow through it easily and an insulator does not.
c)
An insulator is magnetic and a conductor is not
d)
A conductor is magnetic and an insulator is not
7.
What is an example of electric discharge?
a)
a computer hard drive
b)
lightning
c)
an electrically charged balloon sticking to a wall
d)
electric current flowing around a circuit
8.
_____________ turns a circuit on or off.
a)
A load
b)
A switch
c)
A power source
d)
A wire
9.
_____________________ serves as the conductor for the circuit.
a)
A load
b)
A switch
c)
A power source
d)
A wire
10.
a)
closed series
b)
open series
c)
open parallel
d)
closed parallel
11.
a)
closed series
b)
open series
c)
open parallel
d)
closed parallel
12.
Why are the 2 balloons repelling?
a)
They have unlike charges
b)
They have neutral charges
c)
They have like charges
d)
The wind is blowing them apart
13.
What is the current in a circuit that has 10 volts and 2 ohms of resistance?
a)
8 amps
b)
30 amps
c)
7 amps
d)
5 amps
14.
A type of circuit that has more than one path for electrons to flow.
a)
Parallel Circuit
b)
Series circuit
c)
Complex circuit
15.
A type of circuit where electrons have only one path for electrons to flow.
a)
Series Circuit
b)
Parallel Circuit
c)
Complex Circuit
16.
What happens when one light bulb goes out in a Parallel Circuit?
a)
Just that bulb goes out
b)
All the bulbs go out
c)
The bulb closest to the battery stays on.
17.
The strongest point on a magnet is located
a)
In the magnetic field
b)
Center of the magnet
c)
At the Poles (close)
d)
At the Poles (further away)
18.
In a Parallel Circuit, if one bulb goes out what happens to the other bulbs.
a)
All bulbs go out
b)
Remaining bulbs stay lit
c)
Only the bulb closest to the battery go out.
19.
Charging of a object that is neutral is called? Like the Balloon charges the paper pieces so they could stick to it.
a)
Conduction
b)
Induction
c)
Electric Charging
d)
Magnetic Field
20.
The rate at which electrical charges pass a given point. Measured in Amperes.
a)
Voltage
b)
Resistance
c)
Current
d)
Power
21.
The opposition to current flow. Any appliance that uses current will oppose current flow.
a)
Resistance
b)
Voltage
c)
Current
d)
Power
22.
If you have electric Lawnmower that has a 24 Volt battery and operates with 4 amps of current. How much power does the lawn mower use?
a)
20 Watts
b)
6 Volts
c)
6 Watts
d)
96 Watts
23.
What happens to the brightness of the light bulbs in a series circuit when you add more lights.
a)
Each bulb gets dimmer
b)
Each bulb remains the same
c)
Half of the bulbs get dimmer
d)
Each bulb gets brighter
24.
2 ways to increase the magnetic force of an electro-magnet
a)
Increase the current flow, reduce the number of coils
b)
Increase the voltage, decrease the number of coils
c)
Increase the number of coils and the current flow
d)
Spread out the coils, replace iron core with rubber.
25.
What size resistor would produce a 3 Amp current flow with a 12 Volt battery
a)
1 Ohm
b)
3 Ohms
c)
4 Ohms
d)
12 Ohms
26.
Which direction does the flow of electrons move?
a)
Positive to negative
b)
Negative to positive
27.
Electric current passing through a wire produces ________.
a)
permanent magnet
b)
magnetic field around wire
c)
compass
d)
geographic poles
28.
The groups of atoms which can align to create a magnet are called ________.
a)
domains
b)
magnetic units
c)
molecules
d)
electrons
29.
The attraction of hair to a briskly rubbed plastic comb is an example of
a)
magnetism
b)
static electricity
c)
gravity
d)
radiation
30.
The marked end of a compass needle always points directly to
a)
Earth's geographic South pole
b)
Earth's geographic North pole
c)
Earth's magnetic south pole
d)
Earth's magnetic north pole
31.
The marked end of a compass needle always points directly to
a)
Earth's geographic South pole
b)
Earth's geographic North pole
c)
Earth's magnetic south pole
d)
Earth's magnetic north pole
32.
Which of the following copper wires will have the least amount of resistance?
a)
A short, thin wire
b)
A short, thick wire
c)
A long, thin wire
d)
A long, thick wire
33.
You have a radio in your room. It requires electricity in order to play. Which of the following is necessary in order for electricity to move from the source to the radio?
a)
A circuit
b)
A magnet
c)
A light bulb
d)
An insulator
34.
A(n) _____ converts mechanical energy into electrical energy.
a)
electric motor
b)
electric generator
c)
transformer
d)
voltage
35.
Device that transforms electric energy into mechanical
a)
electric motor
b)
electric generator
c)
transformer
d)
voltage
36.
A device that increases/decreases voltage to either step up voltage to send it a long distance, or step down voltage to make it safe to enter and be used in buildings
a)
electric motor
b)
electric generator
c)
transformer
d)
voltage
37.
_______ occur when an electric current is made by a changing magnetic field
a)
electromagnetic induction
b)
electromagnetism
c)
magnetic pole
d)
magnetic force
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