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WorksheetsChapter 16; Electricity
Total questions: 29
Worksheet time: 15mins
This is a symbol for a what?
battery
bulb
resistor
fuse
wire
This is the symbol for a what?
battery
bulb
fuse
resistor
switch
How many resistors are in this diagram?
0
1
2
3
If switch 3 is closed but all others are open, which of the devices will "WORK"?
a
a and b
a, b, c
a, d
none of these
If switches 1 and 2 are closed and the others are open, which devices will work?
a and c
b and d
a, b, c
b, c
a and b
If switches 2 and 4 are open and the others are closed, which devices will "WORK?"
b and c
b and d
a, b, d
a and c
none of these
Which switches would need to be closed for E to "WORK?"
1, 2, 6
1, 3, 4
3 and 4
2, 3, 4
none of these
Which switches would need to be closed for G to "WORK"?
3, 5, 6
1, 3, 5, 6, 7
1, 3, 5, 7
1, 3, 5, 6
none of these
What is the SI unit for electric potential?
amperes
ohms
volts
watts
What is the SI unit for electric current?
amperes
ohms
volts
watts
What is the SI unit for resistance?
amperes
ohms
volts
watts
Which of the following is true regarding this diagram?
it is a parallel circuit
it is a series circuit
it is both a series and a parallel circuit in different places
Which of the following is true regarding the diagram?
it is a series circuit
it is a parallel circuit
it is a perpendicular circuit
It is a closed circuit
Which of the following is true regarding the diagram?
A and B are parallel circuits
A and D are parallel circuits
D and E are parallel circuits
E and F are series circuits
none of these
What causes static electricity? (select the BEST answer)
too many electrons
too many neutrons
too many protons
an overall positive charge
an imbalance of charge
Plastic, wood and paper are _________________ which means that they ______________ conduct electricty.
neutral, do
neutral, don't
conductors, do
insulators, don't
In a battery the electrons flow from the ____________ terminal and the current flows from the ___________ terminal.
negative, negative
negative, positive
positive, negative
positive, positive
This is the symbol for a what and what is its function in a circuit?
fuse, slow down current
fuse, speed up current
resistor, slow down current
resistor, speed up current
An AC current means that the current is ________________ and a DC current means that the current flows _______________.
alternating, decelerating
alternating, directly
automatic, decelerating
automatic, directly
The path that the electrons take is called the ______________ and the actual movement of them is called the ____________.
electron path, circuit
current, circuit
current, electron path
circuit, electron path
circuit, current
In the computer electric circuits module, what happened to the light bulbs when you changed the amount of electric potential?
they changed in brightness
they stopped glowing
they started a fire
none of these
the direction of the flow of the current changed
In the electric circuits computer module, what happened when you changed the direction of the battery?
it changed the brightness of the bulbs
it changed the flow of electrons
it changed the flow of the current
it changed the brightness of the bulbs and the flow of electrons
it changed the direction of the current and the electrons
A broken or "burned-out" bulb acts like what in a circuit?
an open switch
a closed switch
a resistor
a fuse
an open switch and a resistor
A closed circuit:
is off.
is on.
has a break in the wire.
does not allow the current to flow.
allows the circuit to flow
What happens to the current in a circuit with a fixed voltage if you increase the resistance of the circuit?
The current increases.
The current decreases.
The current stays the same.
It is impossible to predict the outcome.
Which of the following would decrease the brightness of a bulb in a circuit?
Decreasing electric potential
Decreasing the resistance of an already added resistor
Adding another bulb if the circuit was a series circuit
2 of these
Which of the following is true comparing the current, electric potential and resistance in a circuit?
As resistance goes up the other 2 decrease.
As current goes up, the other 2 decrease.
If one decreases, they all decrease.
If one increases, they all increase.
As electric potential is unaffected by current and resistance.
What is the SI unit for electric potential?
amperes
ohms
volts
watts
What is the potential difference called in a circuit?
Voltage
Current
Resistance
Power
Capacitance
