Show:
Useful energy forms
Energy sources
Radiation and its applications
Magnetism and electromagnetism
Motors, generators and transformers
100
A radio
What is sound energy?
100
The uneven heating of the Earth lies behind this energy source
What is wind power?
100
238/92 U ----------- 234/90 Th + ______
What is Alpha decay?
100
Pieces of metal usually painted in red and white with more or less permanently aligned domains
What are permanent magnets?
100
The man who invented the first generator
Who was (Michael) Faraday?
200
A light bulb
What is light energy?
200
Aquatic ecosystems are disturbed in the surroundings of this otherwise eco friendly energy source
What is hydroelectric power?
200
234/90 Th------------ 234/91 Pa + __________
What is beta decay?
200
Three items needed to build a simple electromagnet
What is an iron nail, a battery and a wire?
200
The energy transfer taking place in an electrical motor
What is electric energy to mechanical (kinetic) energy
300
A fire place
What is heat energy?
300
The oldest energy source
What is the sun (solar energy)?
300
The most common radiation in medical uses
What is X-rays?
300
The man who discovered that a conductor carrying a current has a magnetic field around it
Who was (Hans Christian) Orstedt?
300
The part of the electric motor that forces the motor to spin in one direction
What is the commutator?
400
A car
What is kinetic energy?
400
A form of hydroelectric power that doesn't need dams
What is tidal power?
400
The isotope commonly used in smoke detectors
What is Americium-241?
400
The latin name of the light phenomena visible in the sky close the poles due to the Earth's magnetic field
What is "Aurora Borealis"?
400
The brush contacts in an electrical motor is usually made up of this element
What is carbon?
500
Uranium
What is nuclear energy?
500
"Photovoltaic" is another word for this setup that can provide us with endless energy
What is a solar cell?
500
The name of the Ukrainian town most severely affected by the Chernobyl disaster in 1986
What is Pripyat?
500
Electromagnets using a small current to switch on or off a larger current
What is a relay?
500
Before the connection between magnetism and electricity was discovered, these type of generators were used
What are electrostatic generators?