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6. What is comet?

  • Rocks left over from the formation of the solar system.
  • A small body with a core of frozen gas & dust.
  • A near earth object is an asteroid or comet that is on a possible collision course with Earth.

7. How is high-level radioactive waste stored?

  • Enclosed in glass & stored underground in steel cylinders.
  • Sealed & buried in landfill sites.

8. State the equation used to calculate electrical power?

  • Power = Current x Voltage
  • Power = Voltage x Time
  • Power = Current x Time
  • Power = Current x Total Cost

9. What is it meant by renewable energy?

  • Energy that will run out.
  • Energy that will not run out.
  • Energy that is finite.

10. Three types of fuel used in power stations?

  • Petrol, Biomass & Nuclear Fuel
  • Nuclear Fuel, Fossil Fuels & Gas
  • Fossil Fuels, Biomass & Nuclear Fuel
  • Fossil Fuels, Petrol & Biomass

11. What is an asteroid?

  • Remains of planet that collided with Earth billions of years ago.
  • Rocks left over form the formation of the Solar System.
  • A small body with a core of frozen gas & dust.