Q.1
Choose the answer that contains the missing words in the correct order. Convection _________ in the Earth's atmosphere give rise to the wind. These are created by ______ energy from the Sun warming up the surface of the Earth. Wind _________ have large blades that are connected to gears linked to a __________. The _________ energy of the wind is transferred into electrical energy.
  • cells, generator, turbines, heat, turning
  • circles, kinetic, turbines, generator, electrical
  • currents, heat, turbines, generator, kinetic
  • currents, light, generators, dynamo, chemical
Q.2
In photovoltaic cells on what does the amount of electricity produced depend??
  • The amount of electricity produced depends only on the light intensity
  • The amount of electricity produced depends only on the size of the photovoltaic cell
  • The amount of electricity produced depends on both the light intensity and size of the photovoltaic cell
  • The amount of electricity produced is the same whatever the light intensity and size of the photovoltaic cell
Q.3
Which energy source comes from the movement of sea water flowing through turbines to generate electricity?
  • Tidal power
  • Hydroelectric power
  • Wave power
  • Geothermal power
Q.4
What is the name given to the source of energy created by the burning of gas from decaying plant or animal waste?
  • Ecomass
  • Biomass
  • Thermalmass
  • Poogas
Q.5
Where does the energy for tidal power stations come from?
  • Other power stations
  • The gravitational attraction of the Sun and Moon
  • The wind
  • Ships passing by and creating waves
Q.6
What term is used to describe energy resources that will always be available?
  • Renewable
  • Finite
  • Eco
  • Infinite
Q.7
Which of the following describes the energy changes in a pumped storage hydroelectric system?
  • potential → kinetic → electrical
  • electrical → kinetic → potential → kinetic → electrical
  • chemical → potential → kinetic → electrical
  • chemical → potential → electrical → kinetic → electrical
Q.8
Which of the following would be a good source of electrical energy for a remote place?
  • A roof made from solar cells
  • A wind turbine
  • A hydroelectric system
  • All of the above
Q.9
Which system generates electricity directly from the Sun's radiation?
  • Hydroelectric power
  • Solar panels
  • Tidal power
  • Photovoltaic cells
Q.10
Geothermal energy is obtained by using steam that comes from under the ground. Where does the heat energy come from that creates the steam?
  • From the Sun heating the ground
  • From fossil fuels that have been set alight by volcanoes underground
  • From radioactive decay deep inside the Earth
  • From earthquakes
0 h : 0 m : 1 s