Coulomb's Law and Electric Force Worksheet
Explore Coulomb's Law and the principles of electric force with this grade 9 science worksheet, covering key concepts and calculations.
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Coulomb's Law and Electric Force
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Read each question carefully and answer to the best of your ability. Show all your work for calculation problems.
1. Which of the following statements best describes Coulomb's Law?
The force between two charges is directly proportional to the distance between them.
The force between two charges is inversely proportional to the product of their magnitudes.
The force between two charges is directly proportional to the product of their magnitudes and inversely proportional to the square of the distance between them.
The force between two charges is independent of the distance between them.
2. If the distance between two charged particles is doubled, the electric force between them will be:
Halved
Doubled
Quartered
Quadrupled
3. The constant 'k' in Coulomb's Law is known as Coulomb's .
4. Like charges , while opposite charges .
5. State Coulomb's Law in words and write its mathematical formula.
6. Two point charges, q1 = +3.0 x 10^-6 C and q2 = -1.5 x 10^-6 C, are separated by a distance of 0.030 m. Calculate the magnitude of the electric force between them. (Coulomb's constant, k = 8.99 x 10^9 N·m²/C²)
7. Electric force is a vector quantity, meaning it has both magnitude and direction.
True
False
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