Electrical Load Calculation Worksheet
A Grade 10 Science worksheet focusing on understanding and calculating electrical loads, including power, current, voltage, and resistance.
Includes
Standards
Topics
Electrical Load Calculation
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Date:
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Read each question carefully and provide the best answer. Show all your work for calculation problems.
1. Which of the following units is used to measure electrical power?
Amperes
Volts
Watts
Ohms
2. What is the relationship between voltage (V), current (I), and resistance (R) according to Ohm's Law?
V = I/R
R = V * I
V = I * R
I = V * R
3. The total electrical power consumed by a circuit is known as the .
4. A device that opposes the flow of electric current is called a .
5. A simple circuit consists of a 12V battery and a light bulb with a resistance of 4 Ohms. Calculate the current flowing through the circuit.
6. An electric heater draws 10 Amperes of current from a 120V power supply. What is the power consumed by the heater?
7. Adding more resistors in series to a circuit will decrease the total resistance.
True
False
8. Observe the simple circuit diagram below. If the voltage source is 9V and the resistance of the bulb is 3 Ohms, calculate the current flowing through the circuit.
