Module 7 Assignment
What is electricity? - ANS-The study of charge and the motion of charge.
An electric generator works by... - ANS-causing electric charge to flow.
turning a coil of wire in a magnetic field.
In a circuit, electrons transport the electrical energy. - ANS-False
Batteries and generators create the electricity which flows in wires. - ANS-False
The electricity inside of wires moves at the speed of light. - ANS-False
Benjamin Franklin's kite was struck by lightning. - ANS-False
Some common sources of renewable energy are... - ANS-Geothermal
Wind
Sunlight
A solar photovoltaic cell... - ANS-is usually made of silicon semiconductors.
works by the conversion of photon energy to electricity.
provides DC current.
A hot water heater used 2 kilowatt for 1.1 of an hour. If electricity costs $0.2 per kilowatt-hour,
how much did it cost (in dollars, to the nearest penny) to use the hot water heater? - ANS-0.44
A windmill... - ANS-has a maximum efficient of about 60%
produces energy by converting kinetic energy into electrical energy.
What is electricity? - ANS-The study of charge and the motion of charge.
An electric generator works by... - ANS-causing electric charge to flow.
turning a coil of wire in a magnetic field.
In a circuit, electrons transport the electrical energy. - ANS-False
Batteries and generators create the electricity which flows in wires. - ANS-False
The electricity inside of wires moves at the speed of light. - ANS-False
Benjamin Franklin's kite was struck by lightning. - ANS-False
Some common sources of renewable energy are... - ANS-Geothermal
Wind
Sunlight
A solar photovoltaic cell... - ANS-is usually made of silicon semiconductors.
works by the conversion of photon energy to electricity.
provides DC current.
A hot water heater used 2 kilowatt for 1.1 of an hour. If electricity costs $0.2 per kilowatt-hour,
how much did it cost (in dollars, to the nearest penny) to use the hot water heater? - ANS-0.44
A windmill... - ANS-has a maximum efficient of about 60%
produces energy by converting kinetic energy into electrical energy.