• 1. 
    Which particle is responsible for creating different isotopes?

  • Protons
  • Neutrons
  • Electrons
  • 2. 
    If charge X applies an electric force F to the right on charge Y, then which of the following is a true statement about the electric force that Y applies to X

  • equal to F to the right
  • equal to F to the left
  • equal to 2F to the right
  • equal to 2F to the left
  • 3. 
    Two students are trying to decide whether or not Object A is charged. They perform the following two tests:Test 1: They bring Object A near a positively charged tape and observe repulsion.Test 2: They bring Object A near a negatively charged tape and observe attraction.These two tests lead to the conclusion that Object A is _____.

  • charged negatively
  • charged positively
  • electrically neutral
  • charged, but with an unknown type of charge
  • 4. 
    What happens when you touch a metal doorknob after rubbing your shoes on the carpet causing the carpet to become positively charged?

  • The doorknob sends a burst of electric current into your body
  • Millions of electrons go from your finger into the doorknob
  • The doorknob sends millions of electrons into your finger
  • our finger becomes negatively charged
  • 5. 
    Good insulators

  • have electrons free to move around
  • have tightly bound electrons
  • have electrons do not move at all
  • All of above
  • 6. 
    Which particle has a neutral charge?

  • Proton
  • Neutron
  • Electron
  • 7. 
    A balloon is charged and brought near a pith ball. The pith ball is attracted to the balloon because of

  • induction
  • conduction
  • friction
  • 8. 
    Charging by ___ requires zero physical contact.

  • Induction
  • Conduction
  • Friction
  • 9. 
    The part of atom that moves from one object to another ?

  • Electrons
  • Protons
  • Neutrons
  • 10. 
    A metal sphere as a net positive charge of 1.3x10-7 C. approximately how many more electrons than protons are on the sphere?

  • 8.125x1011protons
  • 2.08x10-26 protons
  • 9x109 protons
  • 1.6x1019 protons
  • 11. 
    When using the "right hand rule", which way should you point your thumb

  • Toward the negative end of the wire
  • Toward the positive end of the wire
  • You can point your thumb either way
  • 12. 
    What happens to the charges during induction?

  • They transfer
  • They rearrange
  • They neutralize
  • They disappear
  • 13. 
    Charging by ___ creates 2 objects with the same charge

  • Induction
  • Conduction
  • Friction
  • 14. 
    What equation is this:F= k (q(a) x q(b)) / r^2

  • Coulombs law
  • Ohms law
  • Newtons law
  • 15. 
    What is the unit of electric charge?

  • Volts
  • Amps
  • Coulombs
  • Ohms
  • 16. 
    Which will experience a greater acceleration and why?

  • The proton will experience a greater acceleration becasue it has a greater mass
  • The electron will experience a greater acceleration because it has a smaller mass
  • The proton will experience a greater acceleration since the force acting on it is greater
  • The electron will experience a greater acceleration because the force acting on it is greater
  • 17. 
    In the diagram below, P is a point near a negatively charged sphere. Which direction best represents the direction of the electric field at point P?

  • Right
  • Left
  • Up
  • Down
  • 18. 
    The invisible region around any charged object

  • electric force
  • electric discharge
  • electric field
  • bonding charge
  • 19. 
    What is the unit for Electric Force?

  • Newton
  • Couloumb
  • Newtons/Couloumb
  • Nano
  • 20. 
    How is the electric force between two charges affected when both of the charges are doubled?

  • Four times as much.
  • Two times as much.
  • Half as much.
  • One-quarter as much.
  • 21. 
    Two charged parallel plates that are 2.0 × 10–2 m apart have an electric field between them with a magnitude of 1600 N/C. What is the electric potential difference between the plates?

  • 32 V
  • 23.5 V
  • 80,000 v
  • .0000125 V
  • 22. 
    Which of the following is a true statement about the electric field between the two plates?

  • The field is attractive between the plates and uniform in strength
  • The field is repulsive between the plates and uniform in strength
  • The field is attractive between the plates and strongest near the positive
  • The field is repulsive between the plates and strongest near the positive
  • 23. 
    Gravitational forces are

  • attractive only
  • repulsive only
  • attractive and repulsive
  • 24. 
    How do objects become electrically charged?

  • Protons move from one object to another
  • Neutrons move from one object to another
  • Electrons move from one object to another
  • Neutrons and electrons trade places
  • 25. 
    A negatively charged particle has

  • more protons than electrons
  • more electrons than protons
  • neutrons and protons but no electrons
  • an equal number of protons and electrons
  • 26. 
    The SI standard unit of charge; equal to the magnitude of the charge of 6.24 x 1018 electrons or protons.

  • Grounding
  • Capacitor
  • Coulomb
  • Equipotential
  • 27. 
    What is the name of the particle that is being transferred?

  • Proton
  • Neutron
  • Electron
  • Positron
  • 28. 
    The Gold Foil Experiment determined-

  • there are positive and negative charges
  • the flow of electrons towards a positive plate causes electricity to flow
  • the mass of the electron
  • the charge of the electron
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