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Magnet - Field - Poles - Attract - Repel | ||

1 | How many Magnetic Poles are there? | Answer |

2 | What are the Magnetic Poles called? | Answer |

3 | What is a Magnetic Field? | Answer |

4 | Name one Magnetic Element. | Answer |

5 | Draw the Shape of a Magnetic Field around a Bar Magnet. | Answer |

6 | Which way do the Arrows in a Magnetic Field point? | Answer |

7 | Do the Lines of Magnetic Force cross each other? | Answer |

8 | Do Unlike Poles Attract? | Answer |

9 | Do Like Poles Attract? | Answer |

10 | Does the Force become Stronger as the Poles move Further Apart? | Answer |

11 | Draw the Shape of a Magnetic Field between Poles which Attract. | Answer |

12 | Draw the Shape of a Magnetic Field between Poles which Repel. | Answer |

Wire - Magnetic Field - Solenoid - Electromagnet | ||

13 | How can a Straight Wire produce a Magnetic Field? | Answer |

14 | What is the Shape of the Magnetic Field around a Straight Wire? | Answer |

15 | How can the Magnetic Field Direction be Reversed? | Answer |

16 | What is a Solenoid? | Answer |

17 | What is the Shape of the Magnetic Field around a Solenoid? | Answer |

18 | How does Soft Iron inside a Coil make a Magnetic Field Stronger? | Answer |

19 | What is the Difference between a Temporary and a Permanent Magnet? | Answer |

20 | Give one Example of a use for a Permanent Magnet. | Answer |

21 | Give two Ways of Increasing the Strength of a Magnetic Field around a Coil. | Answer |

22 | Give one Example of a use for an Electromagnet. | Answer |

Bell - Relay - Circuit Breaker - Residual Current Circuit Breaker | ||

23 | Describe how an Electric Bell works. | Answer |

24 | Give one Difference between the two Circuits of a Relay? | Answer |

25 | What is the Advantage of using a Relay? | Answer |

26 | Give one Example of a use for a Relay. | Answer |

27 | What does a Circuit Breaker do? | Answer |

28 | Describe how a Residual Current Circuit Breaker works. | Answer |

Motor Effect - Commutator - Loudspeaker | ||

29 | Why does a Wire carrying a Current feel a Force in a Magnetic Field? | Answer |

30 | In which Direction is the Force? | Answer |

31 | In a Motor, why is one side of the Armature Pushed and the other Pulled? | Answer |

32 | What does a Split - Ring Commutator do? | Answer |

33 | Why is a Split - Ring Commutator needed in a Motor? | Answer |

34 | Why does the Coil in a Loudspeaker need Alternating Current? | Answer |

35 | Why does the Paper Cone in a Loudspeaker do? | Answer |

Induced Current - Generator - Dynamo - Microphone | ||

36 | What is Induced Current? | Answer |

37 | When does Induced Current happen? | Answer |

38 | Give one Example of a use for Induced Current. | Answer |

39 | Give two Ways of Increasing the Strength of an Induced Current. | Answer |

40 | Give one Way of Reversing the Direction of an Induced Current. | Answer |

41 | What does a Generator do? | Answer |

42 | Why does a Generator produce Alternating Current? | Answer |

43 | Why are Slip Rings needed? | Answer |

44 | How does the Output of a Generator Change when it is turned Faster? | Answer |

45 | Why are Slip Rings not needed in a Bicycle Dynamo? | Answer |

46 | What makes the Magnet Rotate in a Bicycle Dynamo? | Answer |

47 | How does Sound produce Alternating Current in a Microphone? | Answer |

Transformers - National Grid | ||

48 | What is a Transformer made from? | Answer |

49 | What can a Transformer do? | Answer |

50 | What is a Step Up Transformer? | Answer |

51 | Which Coil has More Turns of Wire in a Step Up Transformer? | Answer |

52 | What is the Transformer Equation? | Answer |

53 | Will a Transformer work with Alternating Current? | Answer |

54 | Will a Transformer work with Direct Current? | Answer |

55 | As the Voltage goes Up, What goes Down? | Answer |

56 | Why is Power Output less than Power Input for a Transformer? | Answer |

57 | What is the National Grid? | Answer |

58 | Why is Aluminium used for Cables Suspended from Pylons? | Answer |

59 | Give one Advantage for using Pylons? | Answer |

60 | Give one Disadvantage for using Pylons? | Answer |

61 | Why is a Step Up Transformer used at a Power Station? | Answer |

Power Stations - Renewable - Non-Renewable | ||

62 | What does a Power Station do? | Answer |

63 | What does Renewable mean? | Answer |

64 | What does Non-Renewable mean? | Answer |

65 | What is a Turbine? | Answer |

66 | How do Fossil Fuels turn a Turbine? | Answer |

67 | To what is a Turbine connected to produce Electricity? | Answer |

68 | What is the Original Source of the Energy in Fossil Fuels? | Answer |

69 | Give two Advantages of using Fossil Fuels to produce Electricity. | Answer |

70 | Give two Disadvantages of using Fossil Fuels to produce Electricity. | Answer |

71 | How does Nuclear Power turn a Turbine? | Answer |

72 | Give two Advantages of Nuclear Power. | Answer |

73 | Give two Disadvantages of Nuclear Power. | Answer |

74 | How does Hydroelectric Power turn a Turbine? | Answer |

75 | What is the Original Source of the Energy in Hydroelectric Power? | Answer |

76 | Give two Advantages of Hydroelectric Power. | Answer |

77 | Give one Disadvantage of Hydroelectric Power. | Answer |

78 | How does Tidal Power produce Electricity? | Answer |

79 | What is the Original Source of the Energy in Tidal Power? | Answer |

80 | Give two Advantages of Tidal Power. | Answer |

81 | Give one Disadvantage of Tidal Power. | Answer |

82 | How does Wave Power produce Electricity? | Answer |

83 | What is the Original Source of the Energy in Wave Power? | Answer |

84 | Give one Advantage of Wave Power. | Answer |

85 | Give one Disadvantage of Wave Power. | Answer |

86 | How does Wind Power produce Electricity? | Answer |

87 | What is the Original Source of the Energy in Wind Power? | Answer |

88 | Give one Advantage of Wind Power. | Answer |

89 | Give one Disadvantage of Wind Power. | Answer |

90 | How does Solar Power produce Electricity? | Answer |

91 | What is the Original Source of the Energy in Solar Power? | Answer |

92 | Give one Advantage of Solar Power. | Answer |

93 | Give one Disadvantage of Solar Power. | Answer |

94 | How does Geothermal Power produce Electricity? | Answer |

95 | What is the Original Source of the Energy in Geothermal Power? | Answer |

96 | Give one Advantage of Geothermal Power. | Answer |

97 | Give one Disadvantage of Geothermal Power. | Answer |

98 | How does Biomass produce Electricity? | Answer |

99 | What is the Original Source of the Energy in Biomass? | Answer |

100 | Give one Advantage of using Biomass to produce Electricity. | Answer |

101 | Give one Disadvantage of using Biomass to produce Electricity. | Answer |

102 | How does The Sun make the Wind Blow? | Answer |

103 | How does The Sun make Water Waves? | Answer |

104 | How does The Sun make the Rain Fall? | Answer |

105 | How can we Reduce Energy Use? | Answer |

Links Electromagnetism Induced Current Transformers

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