117378
Beschreibung
Quiz von Joe Waymouth, aktualisiert more than 1 year ago
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Erstellt von Joe Waymouth
vor etwa 11 Jahre
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Frage 1
Frage
What type of matirial can become staticly charged?
Antworten
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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
Frage 2
Frage
What is transferred from one object to another when one becomes static?
Antworten
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Protons
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Neutrons
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Electons
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Protons, Neutrons and electrons
Frage 3
Frage
What charge are electrons?
Antworten
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Positive
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Negitive
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Neutral
Frage 4
Frage
How can you discharge static electricity?
Antworten
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Earthing it
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Grounding it
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Flooring it
Frage 5
Frage
Two objects with the same charge will...
Antworten
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repel each other
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attract each other
Frage 6
Frage
The atoms or molecules that become charged are called...
Antworten
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ions
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opposites
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static
Frage 7
Frage
Why is a plane earthed when it is refuelled?
Antworten
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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
Frage 8
Frage
What is resistance measured in?
Antworten
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ohms
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ounces
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volts
Frage 9
Frage
How do you work out resistance?
Antworten
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Voltage / Current
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Current / Voltage
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Current * Voltage
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Current / Amps
Frage 10
Frage
What colour is the live wire?
Antworten
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Blue
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Brown
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Yellow and green
Frage 11
Frage
What colour is the neutral wire?
Antworten
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Blue
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Brown
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Yellow and green
Frage 12
Frage
What colour is the earth wire?
Antworten
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Blue
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Brown
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Yellow and green
Frage 13
Frage
Why do electrical devices have fuses?
Antworten
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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
Frage 14
Frage
Why do metal devices have earth wires?
Antworten
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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
Frage 15
Frage
What is the symbol for a double insulated device?
Antworten
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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
Frage 16
Frage
Ultrasound has a frequency of more than how many hertz?
Antworten
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20000
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10000
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15000
Frage 17
Frage
which type of nuclear radiation is a wave?
Antworten
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Alpha
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Beta
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Gamma
Frage 18
Frage
An atom that has lost an electron has a ______ charge?
Antworten
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positive
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neutral
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negative
Frage 19
Frage
What is half life?
Antworten
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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
Frage 20
Frage
What material will stop gamma radiation?
Antworten
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Paper
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Aliminium
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Lead
Frage 21
Frage
Which one of these is a way of using gamma in hospitals?
Antworten
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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
Frage 22
Frage
Splitting an atom is...
Antworten
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Fussion
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Fission
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Fession
Frage 23
Frage
How does radioactivity change over time?
Antworten
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It increases
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It decreases
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It stays the same
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