GCSE PHYSICS - Revision Questions - Mains Electricity - Alternating Current - Earth - Fuse - Plug Wire Colour - Insulation

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Mains Electricity - Current - CRO - Wires
72	What is Mains Electricity?	Answer
73	Is Mains Electricity at a Higher or Lower Voltage than a Cell?	Answer
74	Is Mains Electricity Alternating Current or Direct Current?	Answer
75	What is the Circuit Symbol for Alternating Current?	Answer
76	Describe how the Electrons Move in Alternating Current.	Answer
77	What does 1 Hz equal?	Answer
78	What is a CRO?	Answer
79	What does Alternating Current look like on a CRO?	Answer
80	What does Direct Current look like on a CRO?	Answer
81	Give two Examples of an Appliance.	Answer
82	What Colour is the Live Wire?	Answer
83	What Colour is the Neutral Wire?	Answer
84	What Colour is the Earth Wire?	Answer
85	Is it Safe to touch the Live Wire?	Answer
86	Is it Safe to touch the Neutral Wire?	Answer
87	Is it Safe to touch the Earth Wire?	Answer
88	What is the Flex?	Answer
89	Which Component connects the Live Wire to the Live Pin of a Plug?	Answer

Mains Electricity - Safety
90	What does Electrical Insulation mean?	Answer
91	What type of Material would be a Good Insulator?	Answer
92	How can Insulation become Unsafe?	Answer
93	What does Double Insulation mean?	Answer
94	Name one Appliance which is Double Insulated.	Answer
95	What is the Symbol for Double Insulation?	Answer
96	Which part of an Appliance is the Earth Wire connected to?	Answer
97	What is the Circuit Symbol for Earth?	Answer
98	How does the Earth Wire and a Fuse make an Appliance Safe?	Answer
99	What does a Fuse do?	Answer
100	When does a Fuse melt?	Answer
101	What is the Circuit Symbol for a Fuse?	Answer