# Physics Exam 1 Quiz Questions

Home > Preview

The flashcards below were created by user iishvo on FreezingBlue Flashcards.

1. Is it possible for two negative charges to attract each other?
No, they will never attract.
2. Is it possible for a positive and a negative charge to attract each other?
Yes, why always attract.
3. A glass rod is rubbed with a piece of silk. During the process the glass rod acquires a positive charge and the silk
acquires a negative charge
4. A proton carries a
positive charge
5. The model of the atom shows a
nucleus consisting of both protons and neutrons, surrounded by a cloud of electrons.
6. A neutral atom always has
the same number of protons as electrons
7. An atom has more electrons than protons. The atom is
a negative ion.
8. Materials in which the electrons are bound very tightly to the nuclei are referred to as
insulators
9. Materials in which the electrons are bound very loosely to the nuclei and can move freely within the material are referred to as
conductors
10. A negatively charged rod is brought near one end of an uncharged metal bar. The end of the farthest from the charged rod will be charged ______.
negative
11. Sphere A carries a net positive charge, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Is Sphere B negatively charged, positively charged, neutral, or it cannot be determined without additional information?
Sphere B is now negatively charged.
12. How can a negatively charged rod charge an electroscope positively?
by induction
13. An originally neutral electroscope is briefly touched with a positively charged glass rod. The electroscope
becomes positively charged.
14. An originally neutral electroscope is grounded briefly while a positively charged glass rod is held near it. After the glass rod is removed, the electroscope
is negatively charged
15. Two charged objects are separated by a distance d. The first charge is larger in magnitude than the second charge.
The charges exert forces on each other equal in magnitude and opposite direction.
16. Sphere A carries a net charge and sphere B is neutral. They are placed near each other on an insulated table. Which statement best describes the electrostatic force between them?
There is a force of attraction between them
17. Two charged objects attract each other wtih a certain force. If the charges on both objects are doubled with no change in separation, the force between them