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WorksheetsElectric Tech Unit Test Study Guide
Total questions: 20
Worksheet time: 10mins
What is Ohm's Law used to calculate?
Power
Resistance
Voltage
Current
In a parallel circuit, how is the total resistance calculated?
Sum of individual resistances
Product of individual resistances
Inverse of the sum of the inverses of individual resistances
Average of individual resistances
What is the formula for calculating power in Watt's Law?
(P = I × V)
(P = I + R)
(P = V - I)
(P = R × I)
Which of the following is true about a series circuit?
Voltage is the same across each component
Current is the same through each component
Total resistance is the inverse of the sum of the inverses of individual resistances
All components have different currents
What is the primary function of a multimeter?
To measure temperature
To measure electrical properties like voltage, current, and resistance
To amplify sound
To store electrical energy
Which material is a good conductor of electricity?
Rubber
Plastic
Copper
Wood
What does a Van de Graaff generator produce?
Radio waves
Static electricity
Solar energy
Magnetic fields
What are ions?
Atoms with a neutral charge
Atoms without electrons
Atoms with a positive or negative charge
Atoms without protons
What is the role of neutrons in an atom?
To give the atom its charge
To maintain the atom's mass
To define the atom's identity
To conduct electricity
What is an algorithm?
A step-by-step procedure for calculations
A type of computer hardware
A type of electrical circuit
A method of storing data
What unit is used to measure voltage?
Amperes
Watts
Volts
Ohms
What unit is used to measure current?
Ohms
Volts
Amperes
Watts
Which of the following is part of the engineering design process?
Ignoring feedback
Testing a prototype
Random guessing
Finalizing without review
In algebra, what is the solution to the equation ( 2x + 4 = 12 )?
( x = 2 )
( x = 4 )
( x = 6 )
( x = 8 )
What happens to the total current in a parallel circuit when more branches are added?
It decreases
It increases
What does Ohm's Law state?
( V = I × R )
( I = V + R )
( R = V - I )
( P = V × I )
How do you calculate the total voltage in a series circuit?
Divide the total by the number of components
Multiply the total by the number of components
Sum the voltages across each component
Subtract the lowest voltage from the highest
Which device is used to measure current?
Voltmeter
Ammeter
Ohmmeter
Wattmeter
What is the purpose of using a resistor in a circuit?
To increase voltage
To decrease current
To store energy
To amplify sound
How is the strength of an ammeter's reading best described in a series circuit?
Different in each part of the circuit
Weakest at the start
Constant throughout the circuit
Strongest at the end
