WorksheetsElectric Current High School
Total questions: 54
Worksheet time: 2hrs 32mins
What is Electric Current
flow of electric current through a conductor
flow of electric charges through a conductor
flow of electric charges through an insulator
flow of electric current through an insulator
What is the symbol for the SI unit for Electric Current?
a
A
v
V
What measures current?
Electroscope
Meter
Ammeter
All of the above
What is this symbol called?
Ammeter
Resistor
Battery
Voltage
What is this symbol?
Ammeter
Resistor
Battery
Voltage
What is a formula to calculate Current
I=q/t
I=q*t
I =V*R
I = R/V
Which of these is an example of current electricity?
Placing a lightning rod on the roof of a house to attract lightning
Rubbing a plastic pipe with a piece of wool to attract small pieces of paper
Building a circuit using copper wire and a D cell battery
Using a sheet of fabric softner in the dryer to help reduce static cling
The difference in electrical potential energy between two places in a circuit is called
resistance
friction
induction
voltage
Electric potential difference is...
the product of kinetic energy and charge
the product of potential energy and charge
the change in kinetic energy per unit of charge
the change in potential energy per unit of charge
How much charge must pass by a point in 10 s for the current to be 0.50 A?
0.05C
5.0C
20C
2.0C
The flow of protons
Define electric current
the total charge, q flowing through an area in the circuit per unit time, t.
the total current, I flowing through an area in the circuit per unit time, t.
the rate of capacitance flow through a conductor.
the rate of current flow through a conductor
1 ampere of current is defined as ......
one coulomb of current passing through the surface area in the wire in one second.
one coulomb of charge passing through the conductor in one second
one coulomb of charge passing through the surface area in the wire in one second
one coulomb of current passing through the conductor in one second.
flow in a material.
The amount of energy used to move one coulomb of electrons through the circuit is its
device
voltage
circuit
Energy transformations occur when current flows through a circuit that has __________ ___________.
voltage
electric current
electric resistance
coulomb
Electrical devices have ___________ electric resistance, while good conductors have ___________ electric resistance.
high, low
low, high
The amount of energy used to move a ____________ of electrons through the circuit is the ____________ of an electric energy source. (choose two)
Hertz
coulomb
voltage
watt
What is voltage?
The rate of flow of electrons
The energy used to push electrons
Slows down the current
what the v is voltage??
What is the unit for current?
Amperes
Voltage
Coulomb's
Ohm's
The symbol for a battery or power source is _____ (2 answers needed).
If the power source was set on 4.0 V and there was 1 light bulb, what would the voltage be across the light bulb?
4.0 V
2.0 V
1.0 V
0.0 V
The difference in electrical potential energy between two places in the circuit is called
resistance
friction
induction
voltage
A toaster oven is plugged into an outlet that provides a voltage difference of 120 V. What power does the oven use if the current is 10 A?
0.083 W
1200 W
12 W
130 W
What is the current if 7 Coulombs of charge flow in 60 seconds?
0.117 A
420 A
67 A
8.6 A
An automobile headlight with a resistance of 30 Ω is placed across a 12 V battery. What is the current through the circuit?
2.5 A
360 A
0.4 A
42 A
A motor with an operating resistance of 32 Ω is connected to a voltage source. The current in the circuit is 3.8 A. What is the potential difference in the circuit?
35.8 V
8.4 V
0.119 V
122 V
What is the SI unit for power?
watts
amps
joules
ohms
Which circuit below is a series circuit?
left picture
right picture
Which circuit is a parallel circuit?
left circuit
right circuit
How much current flows through a wire moving 100 C of charge in 2 minutes?
50 A
0.83 A
200 A
0.02 A
Which circuit correctly places the ammeter and voltmeter in the circuit?
1
2
3
4
