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WorksheetsCLMS Electricity and Magnetism
Total questions: 49
Worksheet time: 32mins
Name
Class
Date
1.
Looking at the iron filings, are these magnets repelling, attracting, or neutral
a)
Repelling
b)
Neutral
c)
Attracting
d)
None of the above
2.
Looking at the first 2 sets of magnets, are they repelling, Attracting or Neutral
a)
Repelling
b)
Attracting
c)
Neutral
d)
None of the above
3.
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
4.
What causes the hair to attract to the balloon?
a)
They have like charges
b)
They have opposite charges
c)
Its a neutral situation
5.
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
6.
What are 3 types of magnetic materials?
a)
Copper, Silver and Gold
b)
Iron, Steel and Lead
c)
Iron, Nickel and Cobalt
d)
Calcium, Potassium, Iron
7.
A type of circuit that has more than one path for electrons to flow.
a)
Parallel Circuit
b)
Series circuit
c)
Complex circuit
8.
A type of circuit where electrons have only one path for electrons to flow.
a)
Series Circuit
b)
Parallel Circuit
c)
Complex Circuit
9.
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.
10.
What happens when you have two magnets meet with their south poles.
a)
Repel
b)
Attract
c)
Increases the current
11.
What happens when you have two magnets meet with their south poles.
a)
Repel
b)
Attract
c)
Increases the current
12.
A semiconductor device that allows electricity to flow in one direction?
a)
Computer Chip
b)
Transistor
c)
Diode
13.
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)
14.
A simple device that was designed in the 1800's to detect static electricity.
a)
Ampere meter
b)
Volt Meter
c)
Oscilloscope
d)
Electroscope
15.
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.
16.
Name two conductors of heat or electricity.
a)
Wood and Plastic
b)
Iron and Oxygen
c)
Nickel and Plastic
d)
Copper and Iron
17.
Identify 2 insulators of heat or electricity.
a)
Iron and Nickel
b)
Plastic and Salt Water
c)
Plastic and Glass
d)
Wire and Cast Iron Frying Pan
18.
The region around a magnet where magnetic forces can act.
a)
Magnetic Field
b)
Magnetic Poles
c)
Static Electricity
d)
Magnets
19.
A magnet loses its magnetism if these tiny atom like parts are not aligned.
a)
Atoms
b)
Compounds
c)
Domains
d)
Magnetic Fields
20.
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
21.
A device that is attached to a wire and it is attached to the ground. It protects buildings from Lightning strikes.
a)
Lightning Rod
b)
Circuit Breaker
c)
Fuse
d)
Switch
22.
The rate at which electrical charges pass a given point. Measured in Amperes.
a)
Voltage
b)
Resistance
c)
Current
d)
Power
23.
Type of current that flows in the same direction.
a)
Electrical current
b)
Alternating Current
c)
Direct Current
d)
Electromotive Force (EMF)
24.
The opposition to current flow. Any appliance that uses current will oppose current flow.
a)
Resistance
b)
Voltage
c)
Current
d)
Power
25.
3 ways to produce electricity.
a)
Friction, Generator, Motor
b)
Friction, Chemically, Motor
c)
Solar Cells, Generator, Chemically
d)
Thermocouple, Friction, Motor
26.
A device that uses light energy to create electricity.
a)
Camera cell
b)
Photo Cell
c)
Thermocoupler
d)
Generator
27.
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
28.
You have 120 Volts in a parallel circuit. The circuit contains 20 lights. How much voltage is found at each light?
a)
100 Volts
b)
100 Watts
c)
120 Volts
d)
6 Volts
29.
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
30.
A electrical safety device that melts when to much current flows through a circuit.
a)
Fuse
b)
Breaker
c)
Ampere Meter
d)
Electroscope
31.
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.
32.
An element or compound that conducts electricity better than an insulator but not as well as a conductor.
a)
Iron Core
b)
Semi-Conductor
c)
Electromagnet
d)
Transition Metal
33.
A type of communications device that uses a computer to charge gaseous cells, which generate colored lights for us to see.
a)
Electron Tube TV
b)
Plasma TV
c)
Lap Top Computer
d)
IPAD
34.
If the battery produced 12.6 Volts and what would be the current flow be for a 6 Ohm resistor
a)
2.1 Amps
b)
2.4 Amps
c)
1.71 Amps
d)
15 Amps
35.
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
36.
This is an example of a ______ circuit
a)
Series
b)
Parallel
c)
Open
d)
Dihexihedral
37.
A Charging system producing 14.5 Volts with a current flow of 43.5 Amps, what is the circuit resistance
a)
58 Amps
b)
0.33 Amps
c)
13 Amps
d)
1 Amp
38.
Which of the following is shown in the picture?
a)
Electromagnet
b)
Electric generator
c)
Electric motor
d)
Transformer
39.
How are electromagnets different from magnets?
a)
magnets can be turned on/off
b)
you can turn an electromagnet on/off
c)
magnets are more powerful
d)
magnets have a North and South pole
40.
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
41.
Surrounding every magnet is a __________ __________.
a)
magnetic field
b)
electrical current
c)
another magnet
42.
All of the following can be picked up by a magnet EXCEPT:
a)
aluminum
b)
cobalt
c)
nickel
d)
iron
43.
In order for an electromagnet to be formed, an __________ current must pass through a coil of __________ wrapped around an ________ core.
a)
wire, iron, electric
b)
electric, wire, iron
c)
iron, electric, wire
44.
What would we call a nail that can pick up a paperclip because it is touching a magnet?
a)
temporary magnet
b)
poles
c)
force
d)
detector
45.
Electrical Energy is
a)
How well a generator can produce electricity
b)
all about the moving electrons or negative charges.
c)
How well appliances use electricity
d)
Mechanical movement of molecules and electrons
46.
A type of circuit that does not allow electricity to flow.
a)
Parallel Circuit
b)
Series Circuit
c)
Closed Circuit
d)
Open Circuit
47.
A diode and a transistor are special types of devices that are made of
a)
Metal
b)
Glass
c)
Silicon and Germanium
d)
Alkali metals
48.
A device that allows electricity to flow in one direction is
a)
Resistor
b)
Battery
c)
DIode
d)
Transistor
49.
A semiconductor device that acts like a switch.
a)
Diode
b)
Transistor
c)
Resistor
d)
Light
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