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WorksheetsAg Power - Electricity quiz 1
Total questions: 50
Worksheet time: 39mins
An action in which a force applied to an object and causes a displacement of the object
Power
Work
Force
All of the Above
______ is the international unit of frequency equal to one cycle per second.
Milliamp
Micron
Hertz
Henry
Three methods of heat transfer are
conduction, potential, radiation
potential, kinetic, convection
conduction, kinetic, convection
conduction, convection, radiation
Voltage causes electrons to move in a circuit.
True
False
Which formula below explains Ohm's Law?
Power =
Voltage x current
Voltage = Power/current
Resistance =
Voltage/Current
Current =
Power/Resistance
What happens to current when resistance in a circuit decreases?
The current increases
The current remains the same
The current decreases
The current jumps around
What frequency is the US power grid on?
40 Hz
50 Hz
60 Hz
70 Hz
In a series circuit, which below is true?
Electricity has multiple paths to take
If the circuit is complete, there is only one path for electricity to flow
When there is a break in the circuit, devices will still work
None of the above
What does conductor mean?
materials that allow electrons to flow easily
substance or device which does not readily conduct electricity.
Heat will not pass through the material
All the above
What does insulator mean?
materials that allow electrons to flow easily
substance or device which does not readily conduct electricity.
Heat will not pass through the material
All the above
What benefit does a breaker have over a fuse?
They are cheaper
They are reusable
Breakers can carry more voltage
Fuses do not burn up
How much resistance would produce a current of 120 amps from a 6-volt battery?
720 ohms
.05 ohms
20 ohms
120 ohms
What is the voltage if a resistance of 10 ohms produces a current of 250 amps?
250 volts
2500 volts
25 volts
.04 volts
If I had 24 lights on the same line with a circuit rating to operate at 15A and 120V and currently each light has a 60 Watt bulb. If we wants to make these 100 Watt bulbs. Is there enough power for all 24 lights to be on at the same time? If no, How many lights need to be off so not to trip the circuit?
Yes there is enough power
No, 4 lights
No, 6 lights
No, 8 lights
What is PPE?
Protective Plastic Equipment
Personal Protective Equipment
Personal Pronoun Equalizers
Protective Personal Equalizers
A form of electricity where the flow of current is always in the same direction.
Voltage
AC
Power
DC
The force that opposes and reduces the flow of electrical current is organized as ___
Power
Electromagnetism
Resistance
Frequency
A law that states that current is directly proportional to voltage and inversely proportional to resistance in known as ____
PEC
Kirchoff's Law
Law of Resistivity
Ohm's Law
What is current?
The flow of electrons (volume)
Electrical pressure (psi)
Opposition to the flow of electrons
What is resistance?
The flow of electrons (volume)
Electrical pressure (psi)
Opposition to the flow of electrons
What type of electricity is used in houses?
Alternating Current
Direct Current
What type of circuit is shown in the picture?
Series Circuit
Broken Circuit
Parallel Circuit
Open Circuit
Long nosed pliers
diagonal side cutting pliers
linemans pliers
Wire strippers
True or False: A wind power plant and a coal-fired power plant both generate electricity using turbines.
True
False
For solar power to become a reliable source of energy, which of the following actions must take place?
Earth must run out of non-renewable energy sources.
Solar companies must begin to charge more for solar panel installation.
Scientists must engineer a way to create less cloud cover.
Scientists must come up with more efficient energy storage solutions, namely advanced battery technology.
Fossil fuels are a major source of air pollution and therefore, a major contributor to _____________________!
ozone hole
global warming
skin cancer
radiation
Hot water is pumped up from deep inside Earth and is used to heat homes or to generate electricity. This describes...
biomass
hydroelectric energy
geothermal energy
tidal power
Which crops are grown as a dedicated energy crop?
Corn and Barley
Corn and Soybeans
Corn and Wheat
Soybeans and Barley
There are two types of Solar Heating. They are?
Passive and Potential
Active and Kinetic
Passive and Active
Potential and Kinetic
What part of a solar cell converts light to electricity?
Photon meter
Photovoltaic cell
Photon cell
Photographic cell
What type of alternative power is wave power considered?
Wind Power
Hydropower
Solar Power
Geothermal Power
What are two benefits of Geothermal energy?
It is non-renewable and has a small footprint
It has a constant base load and produces carbon emissions
It has a constant base load and small footprint
Non-renewable and produces carbon emissions
As water flows through a dam, a generator is turned and creates enough electricity for thousands of homes. This describes...
solar energy
hydroelectric energy
geothermal energy.
potential energy
What is a photovoltaic (PV) cell made of?
Natural Gas
Two slices of semiconductor material joined together
Hydrogen and oxygen
Energy from flowing water
What percentage of the world's electricity comes from flowing water?
20
50
75
12
Which energy source is used in the power plant shown in the image?
Biomass power
Tidal power
Solar power
Hydroelectric power
What environmental concern is associated with wind turbines?
