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- 1. Multiple Choice
What happens when a rubber rod is rubbed with a piece of fur, giving it a negative charge?
Electrons are added to the rod
The fur is left neutral
Electrons are added to the fur
Protons are removed from the rod
- 2. Multiple Choice
An attracting force occurs between two charged objects when the charges are of....
equal magnitude
unequal magnitude
unlike signs
like signs
- 3. Multiple Choice
when a glass rod is rubbed with silk and becomes positively charged,....
protons are removed from the silk
Protons are added to the silk
The silk remains neutral
Electron are removed from the rod
- 4. Multiple Choice
which are the following is the most suitable instrument to detect static electric charge?
Galvanometer
Electroscope
Voltmeter
Miliameter
- 5. Multiple Choice
The law of electric charges describes how…
Unlike charges repel each other
Like charges attract each other
Like charges repel each other
Some materials are conductors while others are insulators
- 6. Multiple Choice
If you have built up a static electric charge on your skin, it is likely to discharge when you touch something metal
True
False
- 7. Multiple Choice
The diagram above shows the electric field near two point charges L and R.
L = Positive, R = Negative
L = Negative, R = Positive
L = Positive, R = Positive
L = Negative, R = Negative
- 8. Multiple Choice
Two positive charges with magnitudes 4Q and Q are separated by a distance r. Which of the following statements is true?
The charge with a greater magnitude exerts a larger force on the small charge
The charge with a greater magnitude exerts a smaller force on the small charge
The forces on each charge are the same in magnitude and opposite in direction
The forces on each charge are the same in magnitude and pointing in the same direction
- 9. Multiple Choice
Sphere A is charged positively and sphere B is neutral. The spheres are brought near each other. Which of the following statements is true?
There is no electrostatic force between the spheres since one is neutral
There is a repulsive electrostatic force between the spheres
There is an attractive electrostatic force between the spheres
There is a repulsive electrostatic force applied only on sphere B
- 10. Multiple Choice
A positively charged rod is brought near a charged electroscope. As a result of doing this, the electroscope leaves move closer to each other. What is the charge on the electroscope?
Positive
Negative
It depends on the distance between the electroscope and the rod
It depends on the material that the electroscope is made of
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