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- 1. Multiple ChoiceIn a neutral atom, the number of electrons is equal to the number of _______.NeutronsOrbitsProtonssubatomic particles
- 2. Multiple Choice
If two charges repel each other, the two charges must be
Positive and neutral
Positive and negative
positive and neutral
negative and negative
- 3. Multiple ChoiceAn object becomes charged when the atoms in the object gain or loseelectronsprotonsneutronsall of the above
- 4. Multiple ChoiceIf you rub a glass rod with a piece of silk, the rod becomes positively charged. This means thatfriction destroyed electrons in the rod.the silk has become negatively charged.protons have moved to the rod.glass attracts more protons.
- 5. Multiple ChoiceIf you bring a charged object near an electrically neutral surface without allowing the object to touch the surface, the charges in the surface are rearranged byfriction.convection.induction.conduction.
- 6. Multiple ChoiceObjects that have opposite chargesare attracted to each other, and the force between the objects pulls them together.are attracted to each other, and the force between the objects pushes them apart.are repelled by each other, and the force between the objects pulls them together.are repelled by each other, and the force between the objects pushes them apart.
- 7. Multiple ChoiceA region around a charged particle that can exert a force on another charged particle is called anelectric pulse.electric charge.electric force.electric field.
- 8. Multiple ChoiceCharging by ____ occurs when electrons are transferred from one object to another by direct contact.reductioninductionconductionfriction
- 9. Multiple ChoiceThe "Q" in Coulomb's Law stands forthe mass of charges objects.the distance of charged objects.the force of charged objects.the charge of charged objects.
- 10. Multiple Choice
Force between two bodies having charges 5.0 x 10-4 C and 1.0 x 10-4 C separated by distance of 0.50 m in air is
1800 N
1.0 x 103 N
2200 N
3.0 x 102 N
- 11. Multiple Choice
Electric field lines are drawn
From negative to positive.
From positive to negative.
Parallel to positive charges
Tangent to negative charges
- 12. Multiple ChoiceWhich part of Coulomb's Law is always squared?distancechargeCoulomb's constantforce
- 13. Multiple ChoiceA glass rod rubbed against your hair gains a charge of -14.0 nC. What is the electric force between the balloon and your hair when the two are separated by a distance of 7.1 cm?3.5 x 104 N-3.5 x 104 N- 3.5 x 10-4 N3.5 x 10-4 N
- 14. Multiple Choice
What is the charge of a proton?
Positive
Negative
Neutral
- 15. Multiple Choice
What is the charge of an electron?
Positive
Negative
Neutral
- 16. Multiple Choice
What is the end result when objects are charged through FRICTION?
Two positively charged objects
Two negatively charged objects
One positive and one negative object
One charged and one neutral object.
- 17. Multiple Choice
What is the end result when charging objects through CONDUCTION?
Both objects have the same charge as the original object.
One object is positive and one is negative.
One object is positive and one is neutral
One object is negative and one is neutral
- 18. Multiple Choice
Grounding is used in which charging method?
friction
conduction
induction
- 19. Multiple Choice
What is it called when the positive and negative charges in an object split to opposite ends?
conduction
polarization
friction
charging
- 20. Multiple Choice
If electric field lines are getting closer together, the electric force is getting...
weaker
stronger
staying constant
- Answer choicesTagsAnswer choicesTags