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Electricity Review

Science

26 questions
created by Nalgenebuddy
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A circuit that has two or more separate branches for a current is a?
a. Series Circuit
b. Parallel Circuit
c. Circuit Diagram
d. Electron Circuit
The statement, current is equal to the voltage difference divided by the resistance, is known as
a. Ohm's Law
b. Newton's Law
c. Einstein's Equation
d. Faraday's Law
A static discharge differs from an electric current in that a static discharge
a. is a flow of electrons
b. lasts for only a fraction of a second
c. results because a force is exerted on the electrons
d. involves the movement of ions as well as electrons
Resistance is measured in a unit called the
a. Ampere
b. Volt
c. Ohm
d. Coulomb
The rate at which an electrical device converts energy from one form to another is called
a. Electrical Energy
b. Electrical Resistance
c. Electrical Power
d. Voltage Regulation
A Path that allows only one route for a current is called a
a. Series Current
b. Parallel Current
c. Parallel Circuit
d. Series Circuit
Which of the following is the correct relationship among power, current, and voltage?
a. P=I/V
b. V=P x I
c. P= I x V
d. Ω= P x I
A television that requires an average of 0.40 ampere of current is operated on a 120-volt service for 5.0 hours. How much energy is used?
a. 1.5 kWh
b. 0.15 kWh
c. 0.24 kWh
d. 0.67 kWh
One source of constant electric current is a
a. Switch
b. Transformer
c. Dry Cell
d. Coulomb
A Material through which electrons do not move easily is a (n) _____
a. Transformer
b. Insulator
c. Conductor
d. Fuse
Lightning is
a. A very large discharge of static electricity
b. A buildup of neutrons
c. A low voltage electric current
d. Harmless
The voltage _____ as current moves through a circuit.
a. Remains the same
b. Varies
c. Doubles
d. Increases
Which of the following is a device designed to open an overloaded circuit and prevent overheating?
a. Transformer
b. Magnet
c. Resistor
d. Circuit Breaker
The wise and careful use of energy resources is called
a. Utilization
b. Conservation
c. Fuel Economy
d. Recycling
Petroleum, natural gas, and coal are the three kinds of
a. Nuclear Wastes
b. Synthetic fuels
c. Fossil Fuels
d. Nuclear Fuels
The type of fossil fuel that forms only from the remains of plants is
a. Crude oil
b. Coal
c. Natural Gas
d. Uranium
Devices that use semiconductors to produce electricit from solar energy are
a. Photometers
b. Flash Bulbs
c. Fuel Cells
d. Photovoltaic Cells
Electricity produced by falling water is called
a. Tidal Energy
b. Hydroelectricity
c. Thermodynamics
d. Geothermal Energy
Water that flows due to the gravitational forces among Earth, the Moon, and the Sun has energy referred to as
a. Tidal Energy
b. Hydroelectricity
c. Solar Energy
d. Geothermal
Which of the following is common to both nuclear fusion and nuclear fission?
a. The fuel must be in the plasma state
b. Temp. over on million degrees Celsius are needed for the reaction to occur
c. Matter is converted into energy
d. A chain reaction is needed to start the reaction
Which of the following is an example of a nonrenewable source of energy?
a. Coal
b. Wind
c. the Sun
d. Water
The most abundant fossil fuel is
a. Petroleum
b. Natural Gas
c. Coal
d. Uranium-283
Renewable organic matter, such as wood and rice hulls, are examples of
a. Biomass
b. Nuclear Fuels
c. Fossil Fuels
d. Fission Products
Which of the following is a major problem with developing a fusion reactor?
a. Maintaining very high temperatures
b. Obtaining Fuel
c. Producing Radioactive wastes
d. Disposing of radioactive wastes
Petroleum is separated into gasoline, lubrication oils, and other products through a process called
a. Nuclear Reaction
b. Combustion
c. Fractional Distillation
d. Condensation
One Reason alternative energy sources are needed is because
a. There is no limit to the supply of fossil fuels
b. The Supply of fossil fuels is diminishing
c. The energy needs of the world are decreasing
d. The pop. of the world is decreasing
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