WorksheetsBasic Electricity
Total questions: 33
Worksheet time: 17mins
The movement (or flow) of electrons forms an ________.
Electric current
Magnetic field
Gravitational force
Nuclear reaction
An atom's charge can be changed when it gains or loses ________.
Electrons
Protons
Neutrons
Photons
Materials with loosely bound valence electrons are known as ________.
Conductors
Insulators
Semiconductors
Dielectrics
Copper is a good conductor because:
it has a high resistance to electricity.
it has a low resistance to electricity.
it is a non-metal.
it is a good insulator.
Use the chart to solve the Resistance Codes: Orange, Red, Red, Gold.
3.2k ohms ±5%
2.2k ohms ±5%
4.7k ohms ±5%
1.5k ohms ±5%
Use the chart to solve the Resistance Codes: Brown, Black, Red, Silver.
1k ohms ±10%
100 ohms ±5%
10k ohms ±20%
1 ohm ±1%
Use the chart to solve the Resistance Codes: 520000 ± 5%.
Green, Red, Yellow, Gold
Blue, Orange, Yellow, Silver
Red, Green, Blue, Gold
Yellow, Violet, Red, Gold
Use the chart to solve the Resistance Codes: 61 ± 10%. What are the color codes?
Blue, Brown, Black Gold
Green, Brown, Brown, Silver
Blue, Black, Red, Gold
Green, Black, Red, Silver
What is the engineering notation for 0.0045?
4.5 x 10^-3
45 x 10^-4
4500 x 10^-6
0.45 x 10^-2
What must be the exponent of 10 in engineering notation?
A multiple of 2
A multiple of 3
A multiple of 5
A multiple of 10
Convert 1.5x 10^3 to a unit with a prefix.
1.5 kilounits
1.5 hectounits
1.5 decaunits
1.5 megunits
Convert 4.7 x 10^9 to a unit with a prefix.
4.7 giga (G)
4.7 mega (M)
4.7 kilo (k)
4.7 tera (T)
Express 1,210,000,000 Watts with a proper SI Prefix.
1.21 gigaWatts (GW)
1.21 megaWatts (MW)
1.21 teraWatts (TW)
1.21 kiloWatts (kW)
Prefix for 10^-9 in engineering notation.
Nano (n)
Micro (μ)
Milli (m)
Pico (p)
Ohm's law relates.
Current, Resistance, Voltage
Power, Energy, Time
Force, Mass, Acceleration
Pressure, Volume, Temperature
What is the formula for Resistance? Fill in the blank: R = ____.
R = V/I
R = I/V
R = V*I
R = I^2*R
What is the formula for Voltage? Fill in the blank: V = ____.
V = IR
V = I/R
V = R/I
V = I^2R
Calculate the current through a 25 Ω resistor with 75 V. Fill in the blank: Current (I) = ____.
I = V/R = 75V / 25Ω = 3A
I = V/R = 75V / 25Ω = 2A
I = V/R = 75V / 25Ω = 4A
I = V/R = 75V / 25Ω = 5A
Calculate the resistance of a lamp with 0.5 A current and 120 V source. Fill in the blank: Resistance (R) = ____.
Resistance (R) = 240 Ω
Resistance (R) = 60 Ω
Resistance (R) = 120 Ω
Resistance (R) = 30 Ω
What is the current with a 12.6 V battery and a 6 Ω resistor? Fill in the blank: Current (I) = ___ A.
2.1 A
1.5 A
3.0 A
2.5 A
What is the voltage of a circuit with 5 Ω resistance and 2 A current? Fill in the blank: Voltage (V) = ___ V.
10 V
5 V
15 V
20 V
What is the total resistance of two 4 Ω resistors in parallel? Fill in the blank: Total Resistance = ___ Ω.
2 Ω
4 Ω
8 Ω
1 Ω
What is the total resistance in a series circuit with three resistors powered by a 9V battery?
The sum of the individual resistances
The product of the individual resistances
The average of the individual resistances
The difference between the highest and lowest resistance
If you disconnect the battery (or voltage source) from the circuit, the capacitor will lose its voltage.
True
False
In a parallel circuit, the current is the same through each element. True or False?
True
False
A series connection provides two or more paths for current to flow. True or False?
True
False
A higher resistance in a circuit means a lower current flow, assuming voltage remains constant.
True
False
When a light bulb burns out in a series circuit, all the other bulbs will also go out.
True
False
What happens to Current in a Series Circuit?
Current stays the same.
Current increases with each component.
Current decreases with each component.
Current fluctuates randomly.
What happens to Voltage in a Parallel Circuit?
Voltage stays the same.
Voltage increases with more components.
Voltage decreases with more components.
Voltage fluctuates randomly.
What happens to Voltage in a Series Circuit?
Voltage adds up.
Voltage remains constant.
Voltage decreases.
Voltage is divided equally.
What happens to Current in a Parallel Circuit?
Current divides among the branches.
Current remains the same in all branches.
Current increases in each branch.
Current decreases in each branch.
How do you find total Resistance in a Series Circuit?
Resistance adds up.
Resistance divides by the number of resistors.
Resistance is the product of all resistors.
Resistance is the reciprocal of the sum of reciprocals.
