Worksheetsohm's law
Total questions: 50
Worksheet time: 3hrs 30mins
(I X R)
Voltage divided by Resistance
(V / R)
Current
Power
Ohms
Watts
Voltage divided by Current
(V / I)
Current
Power
Resistance
Watts
What is the formula for Ohm's Law?
F = ma
V = IR
v = d/t
What does the "V" mean in Ohm's Law, V = IR?
velocity
resistance
current
voltage
What does the "I" mean in Ohm's Law, V = IR?
velocity
resistance
current
voltage
What does the "R" mean in Ohm's Law, V = IR?
velocity
resistance
current
voltage
What is the symbol and unit of measurement for voltage in Ohm's Law, V = IR?
meters/second or m/s
ohms (Ω)
amperes (A)
volts (V)
What is the symbol and unit of measurement for current in Ohm's Law, V = IR?
meters/second or m/s
ohms (Ω)
amperes (A)
volts (V)
What is the symbol and unit of measurement for resistance in Ohm's Law, V = IR?
meters/second or m/s
ohms (Ω)
amperes (A)
volts (V)
From the video, what are resistors analogous to.....?
restricting the flow of water in a pipe by making the pipe narrower
expanding the flow of water in a pipe by making the pipe wider
turning on a laser and reflecting the laser off of a mirror on the moon
When an electric circuit is "on" is the circuit open or closed?
open
closed
When an electric circuit is "off" is the circuit open or closed?
open
closed
When an electronic device is "off" is the electric circuit open or closed?
open
closed
When an electronic device is "on" is the electric circuit open or closed?
open
closed
If the battery produced 12.6 Volts, what would be the current flow be for a 6 Ohm resistor?
2.1 Amps
2.4 Amps
1.71 Amps
15 Amps
If the Voltage is increased and the resistance stays the same, Current will
Increase
Decrease
Stay the same
none of these
Which of the following represents the rate of the flow of electricity, expressed in unit of amps?
current
circuit
voltage
resistance
Which of the following represents the opposition presented to the current by a material or device, measured in ohms?
current
resistance
voltage
electricity
Which of the following represents the potential difference between two points, measured in volts?
voltage
current
electricity
resistance
In the model, what do the arrows represent?
The flow of current
The flow of resistance
The flow of voltage
The flow of positrons
In the model, what does the lightbulb represent?
electricity
current
voltage
resistance
In the model, what does the battery represent?
voltage
current
circuit
resistance
Based on this model, what change should be made in order to increase the current?
Close the switch
Add another battery
Add another lamp
Remove a wire
What is the formula for voltage?
V = (I x R) / 2
V = I / R
V = R / I
V = I x R
What is the formula for current?
I = V / R
I = R / V
I = V x R
I = (V x R) / 2
What is the formula for resistance?
R = I / V
R = V / I
R = V x I
R = (V x I) / 2
If a charger for a tablet offers a voltage of 120V and has 240Ω of resistance, what is the amperage?
0.5A
2A
14,400A
28,800A
If an electric ceramic brush has a current of 0.3 amps and a voltage of 120 volts, what is the resistance?
18Ω
36Ω
200Ω
400Ω
If a computer has 10.0A of current and 11Ω of resistance, what is its voltage?
0.9V
1.1V
55V
110V
Without considering the LED light, what would the current be in this schematic?
0.01A
73.3A
220A
660A
Without considering the LED light, how many more volts will you need to increase the current to 0.05A?
11V
8V
24V
18V
Based on the model, which of the following would be true regarding the relationship between voltage, current, and resistance?
Current will reduce voltage.
Current will not pass through resistance.
Resistance will reduce current.
Voltage will reduce resistance.
Based on the graph, which of the following would be true regarding the relationship of voltage and current?
As voltage increases, current decreases.
Voltage will not affect current.
As voltage decreases, current increases.
As voltage increases, current also increases.
Based on the table, which of the following is true regarding the relationship of voltage, resistance and current?
If resistance remains constant while voltage increases, current will decrease.
If current remains constant while resistance increases, voltage will increase.
If voltage remains constant while resistance increases, current will decrease.
If resistance remains constant while current is increasing, voltage will decrease.
