Electricity Generation Quiz

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Who invented the first electromagnetic generator?

Michael Faraday, a British scientist, invented the Faraday disk in 1831.

What is a generator?

A device that converts motion-based or fuel-based power into electric power for use in an external circuit.

What are some sources of mechanical energy used for electricity generation?

Steam turbines, gas turbines, water turbines, internal combustion engines, wind turbines, and hand cranks.

What is the reverse conversion of electrical energy into mechanical energy?

It is done by an electric motor, and motors and generators are very similar. Signup and view all the answers

What do photovoltaic and fuel cell powered generators use to generate electrical output?

Solar power and hydrogen-based fuels, respectively. Signup and view all the answers

Match the method of producing electric power with its description:

Friction = Energy produced by rubbing two materials together Heat = Energy produced by heating the junction where two unlike metals are joined Light = Energy produced by light being absorbed by photoelectric cells, or solar power Chemical = Energy produced by chemical reaction in a voltaic cell, such as an electric battery Signup and view all the answers

Match the type of electrical charge with its description:

Positive charge = One of the two main types of electrical charge Negative charge = One of the two main types of electrical charge Static electricity = Effect displayed by an object when rubbed against a cloth Friction electricity = Effect displayed by an object when rubbed against a cloth Signup and view all the answers

Match the method of producing energy with its usage:

Friction = Least-used method of producing energy Heat = Energy produced by heating the junction where two unlike metals are joined Light = Energy produced by light being absorbed by photoelectric cells, or solar power Magnetism = Energy produced in a conductor that cuts or is cut by magnetic lines of force Signup and view all the answers

Match the method of producing electric power with its source:

Friction = Energy produced by rubbing two materials together Heat = Energy produced by heating the junction where two unlike metals are joined Light = Energy produced by light being absorbed by photoelectric cells, or solar power Pressure = Energy produced by compressing or decompressing specific crystals Signup and view all the answers

Match the type of energy with its production method:

Friction electricity = Energy produced by rubbing two materials together Static electricity = Energy produced by rubbing two materials together Chemical energy = Energy produced by chemical reaction in a voltaic cell Magnetism = Energy produced in a conductor that cuts or is cut by magnetic lines of force Signup and view all the answers