HOMEWORK
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
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
How does the Output of a Generator Change when it is turned
44 Answer
Faster?
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
Give two Advantages of using Fossil Fuels to produce
69 Answer
Electricity.
Give two Disadvantages of using Fossil Fuels to produce
70 Answer
Electricity.
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 Answer
Power?
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
What is the Original Source of the Energy in Geothermal
95 Answer
Power?
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
Give one Disadvantage of using Biomass to produce
101 Answer
Electricity.
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