117378
Description
Quiz by Joe Waymouth, updated more than 1 year ago
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Created by Joe Waymouth
almost 11 years ago
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Question 1
Question
What type of matirial can become staticly charged?
Answer
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An insulator
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A non conducter
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A conductor
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A non insulator
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An insulator or conductor
Question 2
Question
What is transferred from one object to another when one becomes static?
Answer
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Protons
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Neutrons
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Electons
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Protons, Neutrons and electrons
Question 3
Question
What charge are electrons?
Answer
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Positive
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Negitive
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Neutral
Question 4
Question
How can you discharge static electricity?
Answer
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Earthing it
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Grounding it
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Flooring it
Question 5
Question
Two objects with the same charge will...
Answer
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repel each other
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attract each other
Question 6
Question
The atoms or molecules that become charged are called...
Answer
-
ions
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opposites
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static
Question 7
Question
Why is a plane earthed when it is refuelled?
Answer
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So the static electricity does not spark near the flammable liquid
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So it doesn't blow away
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So the static electricity cant shock anyone in the plane
Question 8
Question
What is resistance measured in?
Answer
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ohms
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ounces
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volts
Question 9
Question
How do you work out resistance?
Answer
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Voltage / Current
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Current / Voltage
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Current * Voltage
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Current / Amps
Question 10
Question
What colour is the live wire?
Answer
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Blue
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Brown
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Yellow and green
Question 11
Question
What colour is the neutral wire?
Answer
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Blue
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Brown
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Yellow and green
Question 12
Question
What colour is the earth wire?
Answer
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Blue
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Brown
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Yellow and green
Question 13
Question
Why do electrical devices have fuses?
Answer
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So the device is protected from a power surge
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So the device doesn't work too hard
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So you can turn the device off easly
Question 14
Question
Why do metal devices have earth wires?
Answer
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So that if there is an electrical fault and the outer casing becomes charged it will earth through the earth wire and not through someone touching it
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To get power
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To make the fuse work
Question 15
Question
What is the symbol for a double insulated device?
Answer
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A square inside another square
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A triangle inside another triangle
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A circle inside another circle
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A hexagon inside another hexagon
Question 16
Question
Ultrasound has a frequency of more than how many hertz?
Answer
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20000
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10000
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15000
Question 17
Question
which type of nuclear radiation is a wave?
Answer
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Alpha
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Beta
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Gamma
Question 18
Question
An atom that has lost an electron has a ______ charge?
Answer
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positive
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neutral
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negative
Question 19
Question
What is half life?
Answer
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The time it takes for a radioactive source to decay
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The time it takes for half a radioactive source to decay
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Half the time a radioactive source takes to kill someone
Question 20
Question
What material will stop gamma radiation?
Answer
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Paper
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Aliminium
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Lead
Question 21
Question
Which one of these is a way of using gamma in hospitals?
Answer
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To sterilise objects
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To remove a kidney stone
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To scan an unborn baby
Question 22
Question
Splitting an atom is...
Answer
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Fussion
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Fission
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Fession
Question 23
Question
How does radioactivity change over time?
Answer
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It increases
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It decreases
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It stays the same
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