887017
Frage 1
Frage
Which generator is used to generate high potential differences using static electricity?
Antworten
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Van der Waals generator
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Van der Graaff generator
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Van Gogh generator
Frage 2
Frage
What makes a Perspex rod become positively charged?
Antworten
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Gain of electrons
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Loss of electrons
Frage 3
Frage
What makes a polythene rod become negatively charged?
Antworten
-
Gain of electrons
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Loss of electrons
Frage 4
Antworten
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Indicator
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Diode
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Cell
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Light-emitting diode
Frage 5
Antworten
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Heater
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Fixed resistor
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Fuse
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Variable resistor
Frage 6
Frage
True or false? Current can be defined as the rate of the flow of charge (coulombs per second).
Antworten
- True
- False
Frage 7
Frage
True or false? Potential difference can be defined as the work done by each unit of charge (joules per coulomb).
Antworten
- True
- False
Frage 8
Frage
What is the SI unit of resistance?
Antworten
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Tesla
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Lux
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Ampere
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Ohm
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Volt
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Coulomb
Frage 9
Frage
True or false? The equation connecting current, resistance and potential difference is R = VI.
Antworten
- True
- False
Frage 10
Frage
What is an ohmic conductor?
Antworten
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A special type of conductor developed by Georg Ohm
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An electrical component whose current and potential difference are directly proportional at a constant resistance and temperature
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A conductor whose resistance is greater than 100 ohms
Frage 11
Frage
For which electrical component would this current-potential difference graph apply?
Antworten
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Thermistor
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Light-dependent resistor
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Filament bulb
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Diode
Frage 12
Frage
For which electrical component would this current-potential difference graph apply?
Image:
diode_graph (image/png)
Antworten
-
Thermistor
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Light-dependent resistor
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Filament bulb
-
Diode
Frage 13
Frage
True or false? The resistance of a thermistor decreases as temperature increases.
Antworten
- True
- False
Frage 14
Frage
True or false? The resistance of a light-dependent resistor increases as light intensity increases.
Antworten
- True
- False
Frage 15
Frage
True or false? In a series circuit, the same current passes through all components.
Antworten
- True
- False
Frage 16
Frage
True or false? In a series circuit, the potential difference across each component is the same.
Antworten
- True
- False
Frage 17
Frage
If there were two resistors in series, each with a resistance of 0.6Ω, what would be the total resistance?
Antworten
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0.6Ω
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6Ω
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1.2Ω
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12Ω
Frage 18
Frage
True or false? In a parallel circuit, the total current is shared through the components.
Antworten
- True
- False
Frage 19
Frage
True or false? In a parallel circuit, the potential difference is shared across the components.
Antworten
- True
- False
Frage 20
Frage
If there were two resistors in parallel, each with a resistance of 0.6Ω, what would be the resistance in any one "loop" of the circuit?
Antworten
-
0.6Ω
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6Ω
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1.2Ω
-
12Ω
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