GCSE PHYSICS - Revision Questions - Magnets - Electromagnetism - Motor - Circuit Breaker - Generator - Transformer - Power Station - Fossil Fuels - Nuclear - Hydroelectric - Wind - Solar

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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

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

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