Grade 10 Physics: Resistance
Explore the concept of electrical resistance, Ohm's Law, and how to calculate resistance in series and parallel circuits with this comprehensive worksheet.
Includes
Standards
Topics
Grade 10 Physics: Resistance
Name:
Date:
Score:
Read each question carefully and answer to the best of your ability. Show all your work for calculation problems.
1. What is the unit of electrical resistance?
Ampere
Volt
Ohm
Watt
2. Which of the following factors does NOT affect the resistance of a wire?
Length of the wire
Cross-sectional area of the wire
Material of the wire
Voltage across the wire
3. Ohm's Law states that the current flowing through a conductor between two points is directly proportional to the voltage across the two points, and inversely proportional to the between them.
4. A material that offers very little resistance to the flow of electric current is called a .
5. A circuit has a voltage of 12 V and a current of 3 A. Calculate the total resistance of the circuit.
6. Explain the difference between series and parallel circuits in terms of how resistance is calculated.
7. For the series circuit shown below, calculate the total resistance and the total current.
Given: R1 = 5 Ω, R2 = 10 Ω, R3 = 15 Ω, V = 30 V
Total Resistance (Rt):
Total Current (It):
8. Adding more resistors in series decreases the total resistance of the circuit.
True
False
9. In a parallel circuit, the voltage across each resistor is the same.
True
False
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