1. Energy Test
Review Keynote

2. What are the two units
of measure for energy?

3. BTU and joule

4. What is a turbine?

5. The part of a power
plant that turns because
of the source of
energy. The turbine then
turns the generator.

6. What are the three
main fossil fuels?

7. coal, oil, and natural gas

8. Where do we get
biomass (3 sources)?

9. our trash, animal
manure, and dead plants

10. How is geothermal
energy made?

11. the earth’s own heat
heats up the
underground water

12. How do hydro dams
work?

13. A dam is built to hold
back flowing water of a
river (producing a man-
made lake). Water is let
through the dam that
spins turbines built into
the dam. The turbine
spins a generator.

14. What is nuclear fission?

15. splitting the nucleus of
an atom

16. What two ways do we
use ocean energy?

17. actually three - but you
need to know two: wave,
currents (temperatures),
and tides

18. What is the most
important part of solar
energy?

19. the sun

20. What is nuclear fusion?

21. combining nuclei of two
or more atoms

22. How do windmills work?

23. The blades of the
windmill are designed to
capture wind. The blades
turn which turns the
generator.

24. What is the difference
between renewable and
nonrenewable energy?

25. A renewable resource
can be replenished at
least as quickly as it is
used while a
nonrenewable resource
cannot.

26. How does a turbine
work?

27. Steam, liquid water, or
wind moves past it
catching the blades and
causing it to turn. It is
attached to a generator
causing it to produce
electricity.

28. What part of fossil
fuels are we really
using?

29. Carbon

30. Is biomass energy
renewable or
nonrenewable?

31. renewable

32. What properties of a
conductor makes it a
good conductor?

33. 1. It holds the electrons
loosely
2. The atoms are tightly
packed together
- these two things allow
the energy to pass
easily

34. Which nuclear reaction
do nuclear power plants
use: fission or fusion

35. nuclear fission

36. How does a photovoltaic
cell work?

37. When the sun strikes the
photovoltaic cell it knocks
electrons loose. The
electrons travel to the
front surface causing a
charge imbalance. That
imbalance causes a current
to move.

38. Is wind energy
renewable or
nonrenewable?

39. renewable

40. What source of energy
do we use the most?

41. fossil fuels

42. Give three examples of
good conductors.

43. metal, impure water,
graphite

44. What properties about
an object increase its
resistance?

45. the thinner and longer
it is

46. What is the purpose of
the turbine?

47. to turn the generator

48. Give three examples of
insulators.

49. wood, rubber, cold glass

50. Are fossil fuels
renewable or
nonrenewable?

51. nonrenewable

52. How do we use tides for
power?

53. Water from the high
tide can be trapped in
reservoirs and forced
through hydro-electric
dam.

54. Explain what the
“Conservation of
Energy” means.

55. Energy is neither
created nor destroyed;
only transformed into
other forms. We can
take heat energy and
turn it into electricity,
but we cannot CREATE.

56. How does a generator
work?

57. A wire surrounded by a
magnet is turned by the
turbine. The spinning
metal pushes out the
electrons in the inner
part of the magnet -
electricity flows.

58. Why do we want
resistance?

59. We use resistance to
slow down the flow of
electricity to produce
heat or light.