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WorksheetsTerm 3 Week 10 Homework Task
Total questions: 20
Worksheet time: 22mins
What is this component?
Variable Resistor
Thermistor
Fuse
Resistor
What component measures potential difference?
Ammeter
Voltmeter
LED
LDR
A _______ is designed to melt and break the circuit if the current gets too high.
Fixed resistor
Battery
Cell
Fuse
This is an example of a _________ circuit.
open
closed
parallel
series
An object or material that electrons can flow through easily is called a(n):
conductor
insulator
Resistance is...
What 'slows down' electrons
What 'speeds up' electrons
Moving electrons
What 'pushes' electrons
What type of current comes from a battery?
Alternating Current (AC)
Direct Current (DC)
Which of the following are conductors (there are 2 correct ones)
Silver
Plastic
Copper coin
Glass slide
What is an insulator?
The area through which a current is able to move
The amount of devices which enter a circuit
A material which does not allow electricity to go through it.
A battery or other device which provides energy for a circuit
Which symbol represents a battery?
What needs to be done to this circuit so that the lamp lights up?
Close the switch
Add a source and close the switch
Add another lamp
Add another lamp and a switch
If lamp 1 is unscrewed from its holder, what will happen to lamp 2?
It will get brighter
It will stay the same brightness
It will go out
Nothing will happen
What is/are the lesson(s) learnt from this clip? Pick all the correct answers.
Electricity is dangerous if used improperly.
Never touch bare wires with hands.
Don't wear jackets when using electricity.
Long hair will increase chance of electric shocks.
To measure current through a component, an ammeter should be connected:
Anywhere in a circuit
In series with the component
At the end of the circuit
In parallel with the component
To measure the voltage across a component, a voltmeter should be connected:
Anywhere in a circuit
in series with the component
At the end of the circuit
in parallel with the component
When globe C broke in the circuit above, what would happen to globe B?
Globe B would stop glowing
Globe B would glow brighter
Globe B would glow less brightly.
Globe B would glow exactly the same as before.
How and where should a voltmeter be connected?
in series, with globe B
in parallel, with globe C
in series, between globes C and D
in parallel with globe B
Which statement describes static electricity?
discharge of built-up electrons
flow of electrons in a conductive wire
electrons not moving
