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WorksheetsElectricity and Mangetism Assessment
Total questions: 60
Worksheet time: 47mins
If two charges are the same they.....
repel
attract
Most objects have ______ charge.
positive
negative
neutral
When you rub your feet together and then touch something the shock is _____
magnetic
heat
static electricity
The flow of electricity is known as ______
power plant
electric current
wire
What type of energy do wind farms use to generate electricity?
kinetic energy
radiant energy
heat energy
gravitational potential energy
What type of process is shown?
Electromagnet
Electric motor
Electric generator
Electromagnetic induction
Current that moves back-and-forth instead of moving in one direction
AC
DC
PVC
CDC
When you turn a turbine in a generator, you create
AC current
DC current
PVC current
CDC current
What are the two things we need to generate electricity?
Coil of Wire
Rocks
Magnet
Metal
What does AC mean in electricity?
Alternating Current
Adverse Current
Ascending Current
Accounting Current
What does DC stands for in electricity?
Divergent Current
Diligent Current
Direct Current
Disturbing Current
An aquarium light bulb uses 210 J of energy in 30s. How much power does it use?
power = energy / time
10 W
5 W
6300 W
7 W
Why electrical wiring usually are covered with a layer of plastic?
To make it look pretty
To help electricity flow along the wire
To make it safe
To add more energy
What particle has a positive charge?
Protons
Electrons
Neutrons
What particle has a negative charge?
Protons
Electrons
Neutrons
If you rub fur on pvc to give it extra electrons, the pipe will become
Negative
Positive
If you rub silk on glass to take away electrons, the glass will become
Negative
Positive
The space around an electric charge that causes them to attract and repel is called
Gravity
Electric Field
Magnetism
None of the above
Which is the electric field of a negative charge?
Left
Right
What is the main thing that defines static electricity?
The electric charges stay in one place
The electric charges flow
Will this circuit light the bulbs?
Yes, both will light up
Yes, but only the one on the right
Yes, but only one on the left
No, neither of the bulbs will light up
In this image is a...
series circuit
parallel circuit
Electric power can be calculated by multiplying ______________ and _________________.
Voltage and resistance
Voltage and current
Electric usage and voltage
Electric Energy and Time
Electrical energy is calculating by multiplying _________________ and ________________.
Electric Power and time
Voltage and time
Resistance and time
Current and time
Circuit which has 10Volts and 2Amperes in it.
Electric power?
P = I x V
20
16
10
0
A tv uses 25 kW/h, how much energy would it use in 5 hours?
E= P X T
125kW
150kW
1000kW
10kW
Magnetism is a force of ____________________________ that occurs between two _____________ objects.
attraction or repulsion, magnetic
external or internal, magnetic
external or repulsion, electronic
attraction or internal, electronic
The magnetic ____________ around a bar magnet is shown above.
legs
flowers
field
direction
The strongest parts of the magnet are ...
fronts
backs
poles
middle
Identify this magnet
Horseshoe
U shaped
Bar
Cylindrical
density
mass
weight
Electromagnetism is the interaction between ____ and ____.
Kinetic energy and thermal energy
Electricity and magnetism
North and south pole
Magnets and light waves
What are the units of power measured in?
Volts
Watts
Joules
torques
The diagram above shows a wind turbine. Which part of the wind turbine converts wind energy to electrical energy?
blades
generator
rotor
pitch system
