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- 1. Multiple Choice
The net force due to different charges around a single charge can be determined using superposition principle. True or False?
True
False
- 2. Multiple Choice
According to Coulomb's Law, The greater the separation distance between two charges the greater the magnitude of the electric force. True or False?
True
False
- 3. Multiple Choice
Coulomb's Law states that the electric force is directly proportional to the product of the two charges and inversely proportional to the distance between them. True or False?
True
False
not enough information
- 4. Multiple Choice
The mass of a single electron is equal to 9.109x10-31C. True or False?
True
False
- 5. Multiple Choice
The separation distance between two charges is equal to r=√(k.(q1q2/Fe)). True of False
True
False
- 6. Multiple Choice
Electric field is directly proportional to the charge and inversely proportional to the magnitude of electric force. True or False?
True
False
- 7. Multiple Choice
The electric field lines for a positive charge is always directed away from the charge. True or False?
True
False
- 8. Multiple Choice
Electric force is also equal to the electric field multiply with a charge. True or False?
True
False
- 9. Multiple Choice
The S.I. unit for electric field is__________?
nC
μC
n/C
N/m
none of the above
- 10. Multiple Choice
Electric charges are created ______.
by gravitational forces.
separately.
between 2 oppositely charged objects.
by neutrons.
- 11. Multiple Choice
How can a neutral object become charged?
by being dipped in water
by being stuck to the desk with tape
by allowing gravity to work on it
by having electrons added or removed
- 12. Multiple Choice
Based on the arrangement of the electric field lines in the diagram, what are the charges?
both charges are the same
the charges are opposite
they are neutral; no charge
- 13. Multiple Choice
Which statement best describes the electric fields in the image?
The charges are neutral.
Both charges are negative, so the field lines are alike.
The field lines move toward a positive charge and away from a negative charge.
The field lines move away from a positive charge and toward a negative charge.
- 14. Multiple Choice
Which statement describes what is happening in the image at the space indicated by the green arrow?
The field lines are repelled by like charges.
The field lines are repelled by opposite charges.
The field lines are attracted by the like charges.
The field lines are attracted by the opposite charges.
- 15. Multiple Choice
Where can an electric field be found?
below a force field
in a gravitational field
in the space surrounding a charged object
outside of a magnetic field
- 16. Multiple Choice
What happens to the field strength as the distance between two charged objects decreases?
the strength stays the same
the strength increases
the strength decreases
the strength fluctuates between positive and negative
- 17. Multiple Choice
Which diagram correctly shows the electric field around a negative charge?
A
B
they are both positive
- 18. Multiple Choice
Which diagram correctly shows the field lines between two like charges?
A
B
Both
Neither
- 19. Multiple Choice
Label the charges respectively:
+; +
+; -
-; -
-; +
- 20. Multiple Choice
Label the charges respectively:
+; +
+; -
-; -
-; +
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