Physics Chapter 22

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    The electrical force between charges is strongest when the charges are

    • Close together
    • Far apart
    • The electric force is constant everywhere
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Physics Chapter 22

Physics Chapter 22 - Quiz

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  • 2. 

    An electron and a proton

    • Attract each other

    • Repel each other

    Correct Answer
    A. Attract each other
  • 3. 

    If you comb your hair and the comb becomes positively charged, then your hair becomes

    • Positively charged

    • Negatively charged

    • Uncharged

    Correct Answer
    A. Negatively charged
  • 4. 

    If you use 10 J of work to push a coulomb of charge into an electric field, its voltage with respect to its starting position is

    • Less than 10 V

    • 10 V

    • More then 10 V

    Correct Answer
    A. 10 V
  • 5. 

    Strip electrons from an atom and the atom become a

    • Positive ion

    • Negative ion

    • Different element

    Correct Answer
    A. Positive ion
  • 6. 

    A main difference between gravitational and electric forces is that electrical forces

    • Attract

    • Repel or attract

    • Obey the inverse-square law

    • Act over shorter distances

    • Are weaker

    Correct Answer
    A. Repel or attract
  • 7. 

    Charges on the plates of a charged capacitor reside on the surfaces

    • Between the capacitor plates

    • Exterior to the capacitor

    Correct Answer
    A. Between the capacitor plates
  • 8. 

    A difference between electric forces and gravitational forces is that electrical forces include

    • Separation distance

    • Repulsive interactions

    • The inverse square law

    • Infinite range

    • None of these

    Correct Answer
    A. Repulsive interactions
  • 9. 

    Which force binds atoms together to form molecules?

    • Gravitational

    • Nuclear

    • Electrical

    • Centripetal

    • None of these

    Correct Answer
    A. Electrical
  • 10. 

    In an electrically neutral atom the number of protons in the nucleus is equal to the number of

    • Electrons that surround the nucleus

    • Neutrons in the nucleus

    • Both of these

    • Neither of these

    Correct Answer
    A. Electrons that surround the nucleus
  • 11. 

    A positive ion has more

    • Electrons than neutrons

    • Electrons than protons

    • Protons than electrons

    • Protons than neutrons

    • Neutrons than protons

    Correct Answer
    A. Protons than electrons
  • 12. 

    An electroscope is charged positively as shown by foil leaves that stand apart. as a negative charge is brought close tot he electroscope, the leaves

    • Fall closer together

    • Spread apart further

    • Do not move

    Correct Answer
    A. Fall closer together
  • 13. 

    Two charged particles held close to each other are released. As they move, the force on each particle increases. Therefore, the particles have 

    • The same sign

    • Opposite signs

    • Not enough information given

    Correct Answer
    A. Opposite signs
  • 14. 

    Rub electrons from your hair with a comb and the comb becomes

    • Negatively charged

    • Positively charge

    Correct Answer
    A. Negatively charged
  • 15. 

    The electric field inside an uncharged metal ball is zero. If the ball is negatively charged, the electric field inside the ball is then 

    • Less than zero.

    • Zero.

    • Greater than zero.

    Correct Answer
    A. Zero.
  • 16. 

    To say that electric charge is conserved is to say that electric charge

    • May occur in an infinite variety of quantities

    • Is a whole number multiple of the charge of one electron

    • Will interact with neighboring electric charges

    • Can be neither created nor destroyed

    Correct Answer
    A. Can be neither created nor destroyed
  • 17. 

    The fundamental force underlying all chemical reactions is

    • Gravitational

    • Nuclear

    • Centripetal

    • Electrical

    • None of these

    Correct Answer
    A. Electrical
  • 18. 

    The unit of electric charge, the coulomb, is the charge on

    • One electron

    • A specific large number of electrons

    Correct Answer
    A. A specific large number of electrons
  • 19. 

    The electrical force between charges depends on the

    • Magnitude of electric charges

    • Separation distance between electric charges

    • Both of these

    • None of these

    Correct Answer
    A. Both of these
  • 20. 

    Two protons attract each other gravitationally and repel each other electrically. By far the greater is

    • The gravitational attraction

    • The electrical repulsion

    • Neither- they are the same

    Correct Answer
    A. The electrical repulsion
  • 21. 

    A positive charge and a negative charge held near each other are released.  As they move, the force on each particle

    • Increases

    • Decreases

    • Stays the same

    Correct Answer
    A. Increases
  • 22. 

    To say that electric charge is conserved means that no case has ever been found where

    • The total charge on an object has changed

    • The net amount of negative charge on an object is unbalanced by a positive charge on another object

    • The total amount of charge on an object has increased

    • Net charge has been created or destroyed

    • None of these

    Correct Answer
    A. Net charge has been created or destroyed
  • 23. 

    Every proton in the universe is surrounded by its own

    • Electric field

    • Gravitational field

    • Both of these

    • Non of these

    Correct Answer
    A. Both of these
  • 24. 

    If you use 10 J of work to push a charge into an electric field and then release the charge, as it flies past its starting position, its kinetic energy is

    • Less than 10 J

    • 10 J

    • More than 10 J

    Correct Answer
    A. 10 J
  • 25. 

    The electrical force on a 2-C charge is 60 N. What is the value of the electric field at the place where the charge is located?

    • 20 N/C

    • 30 N/C

    • 60 N/C

    • 120 N/C

    • 240 N/C

    Correct Answer
    A. 30 N/C
  • 26. 

    Two charged particles held near each other are released. As they move, the acceleration of each decreases.  Therefore, the particles have

    • The same sign

    • Opposite signs

    • Not enough information given

    Correct Answer
    A. The same sign
  • 27. 

    A transistor is an example of

    • A resistor

    • A superconductor

    • A semiconductor

    • A dry cell

    • Electrostatic shielding

    Correct Answer
    A. A semiconductor
  • 28. 

    To be safe in the unlikely case of a lightning strike, it is best to be inside a building framed with

    • Steel

    • Wood

    • Both the same

    Correct Answer
    A. Steel
  • 29. 

    You can touch a 100,000- volt Van de Graaff generator with little harm because although the voltage is high, the relatively small amount of charge means there is a relatively small amount of

    • Energy

    • Electric field

    • Polarization

    • Conduction

    Correct Answer
    A. Energy
  • 30. 

    Charge carriers in a metal are electrons rather than protons because electrons are

    • Negative

    • Smaller

    • Loosely bound

    • All of these

    • None of these

    Correct Answer
    A. Loosely bound
  • 31. 

    When the distance between two charges is halved, the electrical force between the charges

    • Quadruples

    • Doubles

    • Halves

    • Is reduced by 1/4

    • None of these

    Correct Answer
    A. Quadruples
  • 32. 

    When a car is struck by lightning, the resulting electric field inside the car is

    • Normally huge, but for brief time

    • Normally huge for a time longer than the lightning stroke itself

    • Small enough to be safe for an occupant inside

    • Zero

    Correct Answer
    A. Zero
  • 33. 

    A negatively charged rod is brought near a metal can that rests on a wood table. you touch the opposite side of the can momentarily with your finger. The can is then

    • Positively charged

    • Negatively charged

    • Uncharged

    • Charged the same as it was

    Correct Answer
    A. Positively charged
  • 34. 

    A balloon will stick to a wooden wall if the balloon is charged

    • Negatively

    • Positively

    • Either way

    • Neither way

    Correct Answer
    A. Either way
  • 35. 

    To say that electric charge is quantized is to say that the charge on an object

    • May occur in an infinite variety of quantities

    • Is a whole number multiple of the charge of one electron

    • Will interact with neighboring electric charges

    • Can be neither created nor destroyed

    Correct Answer
    A. Is a whole number multiple of the charge of one electron
  • 36. 

    Particle A and particle B interact with each other. Particle A has twice the charge of particle B. Compared to the force on Particle A, the force on Particle B is

    • Four times as much

    • Two times as much

    • The same

    • Half as much

    • None of these

    Correct Answer
    A. The same
  • 37. 

    A proton and an electron are placed in an electric field. Which undergoes the greater acceleration?

    • Electron

    • Proton

    • Both accelerate equally

    • Neither accelerates

    Correct Answer
    A. Electron
  • 38. 

    Electric potential, measured in volts, is the ratio of electric energy to amount of electric

    • Current

    • Resistance

    • Charge

    • Voltage

    • None of these

    Correct Answer
    A. Charge
  • 39. 

    To say that an object is electrically polarized is to say

    • It is electrically charged

    • Its charges have been rearranged

    • Its internal electric field is zero

    • It is only partially conducting

    • It is to some degree magnetic

    Correct Answer
    A. Its charges have been rearranged
  • 40. 

    Two charges separated by one meter exert 1-N forces on each other. If the charges are pulled to 3-m separation distance, the force on each charge will be

    • 0.33 N

    • 0.11 N

    • 0 N

    • 3 N

    • 9 N

    Correct Answer
    A. 0.11 N
  • 41. 

    Two charges separated by one meter exert 1-N forces on each other. If the magnitude of each charge is doubled, the force on each charge is

    • 1 N

    • 2 N

    • 4 N

    • 8 N

    • None of these

    Correct Answer
    A. 4 N
  • 42. 

    An electron is pushed into an electric field where it acquires a 1-V electrical potential. If two electrons are pushed the same distance into the same electric field, the electrical potential of the two electrons is

    • 0.25 V

    • 0.5 V

    • 1 V

    • 2 V

    • 4 V

    Correct Answer
    A. 1 V
  • 43. 

    A charged balloon neatly illustrates that something can have a great amount of

    • Potential energy and a low voltage

    • Voltage and a small potential energy

    • Both voltage and potential energy

    • None of these

    Correct Answer
    A. Voltage and a small potential energy
  • 44. 

    Superconductors are noted for their

    • High electric resistance

    • Low electric resistance

    • Absence of electric resistance

    Correct Answer
    A. Absence of electric resistance
  • 45. 

    Two charged particles attract each other with a force F. If the charges of both particles are dubled, and the distance between them also doubled, then the force of attraction will be

    • F

    • 2 F

    • F/2

    • F/4

    • None of these

    Correct Answer
    A. F
  • 46. 

    An uncharged pitch ball is suspended by a nylon fiber. When a negatively charged rubber rod is brought nearby, without touching it, the pitch ball

    • Becomes charged by induction

    • Becomes polarized

    • Is repelled by the rod

    • All of these

    • None of these

    Correct Answer
    A. Becomes polarized
  • 47. 

    The direction of an electric field is the direction of the force that it would exert on

    • A neutron

    • An electron

    • An atom

    • A proton

    • A molecule

    Correct Answer
    A. A proton
  • 48. 

    Two charges separated by one meter exert 1-N forces on each other if the charges are pulled to 3-m separation distance, the force on each charge will be

    • 1 N

    • 2 N

    • 4 N

    • 8 N

    • 16 N

    Correct Answer
    A. 16 N
  • 49. 

    When a single charge q is placed at one corner of a square, the electric field at the center of the square is F/q. If two other equal charges are placed at the adjacent corners of the square, the electric field at the center of the square due to these three equal charges is

    • F/q

    • 4F/q

    • F/(2q)

    • F(4q)

    • None of these

    Correct Answer
    A. F/q

Quiz Review Timeline (Updated): Mar 18, 2022 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 18, 2022
    Quiz Edited by
    ProProfs Editorial Team
  • May 24, 2010
    Quiz Created by
    Qtkhmerqueen143
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