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WorksheetsESP Units 13 - 15 Review
Total questions: 37
Worksheet time: 26mins
What is this?
(a)
What are the red parts? Write ONE WORD ONLY.
(a)
Electric current is the flow (movement) of ___________________.
protons
neutrons
electrons
quarks
Another word for electric current is____________________.
voltage
electricity
insulation
safety
An electric circuit is a ___________ where an electric current flows.
room
line
lamp
battery
What are all of these?
Batteries
Conductors
Insulators
Components
Complete the sentence with ONE WORD.
A conductor is something where electric (a) can go through easily.
What are all of these?
Batteries
Conductors
Insulators
Components
Complete the sentence with ONE WORD.
An insulator is where (a) current can't go through easily.
Choose THREE conductors.
Copper
Plastic
Water
Aluminium
Rubber
Choose THREE insulators
Copper
Plastic
Rubber
Wood
Gold
Choose THREE things you can see in the picture.
A battery
An electric circuit
An insulator
An electric current
A pipe
What makes batteries different?
Different voltage
Different current
Different material
Different pressure
What does this picture show?
(a)
What is the BLUE part?
(a)
What does this show?
pull
increase
decrease
push
What does the picture show?
Moving in one direction
Moving in two directions
Moving randomly
Moving in three directions
Complete the sentence with ONE WORD ONLY.
Voltage (a) electric current around a circuit.
Without voltage, electrons move (a) .
The more voltage we have, the __________ electric current can flow.
more
less
produce
damage
If the voltage INCREASES, the electric current ________________.
damages
stays the same
decreases
increases
If the voltage DECREASES, the electric current ____________________.
damages
stays the same
decreases
increases
We measure voltage with a ________________.
resistor
voltmeter
ammeter
battery
We measure electric current with an ___________________.
voltmeter
battery
transistor
ammeter
If the voltage for a device is TOO HIGH, it may _________________________.
work ok
become damaged
work slowly
not work
If the voltage is TOO LOW, the device _________________.
will not work
will work ok
will become damaged
will explode
Electric current is the __________________ of electrons in a circuit.
increase
decrease
flow / movement
eat
Direct current flows in ___________ direction.
one
two
three
four
Alternating current flows in __________ directions - forwards and backwards
one
two
three
many
What are TWO examples of where we use DC (direct current)?
Laptops
Power stations
Sockets
Mobile phones
What are TWO examples of where we use DC (direct current)?
Laptops
Power stations
Sockets
Mobile phones
What are TWO examples of where we use AC (alternating current)?
Power stations
Mobile phones
Sockets
Laptops
Complete with one word only.
The unit for measuring electric current is the (a) .
Complete with TWO words ONLY.
These wires are _________________ ______________________
(a)
Why are the wires burnt out?
There was too much electric current.
There was too little electric current.
There was no current.
What is the device ON THE LEFT?
(a)
What is the device ON THE RIGHT?
(a)
