Electrostatics Practice Quiz
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Questions and Answers

What happens when a negatively charged balloon is brought near another negatively charged balloon?

  • They stick together.
  • Nothing happens.
  • They attract each other.
  • They repel each other. (correct)

    • A positively charged glass rod will attract a neutral piece of aluminum foil.

    True

    What material becomes positively charged when a glass rod is rubbed with silk?

    Glass rod

    When a negatively charged rod touches a neutral pith ball, the pith ball becomes __________.

    <p>negatively charged</p> Signup and view all the answers

    Match the object with its corresponding behavior when exposed to a positively charged rod:

    <p>Metal Sphere = Attracts the rod Plastic Block = Does not attract Neutral Pith Ball = Attracts the rod Negatively Charged Balloon = Repels the rod</p> Signup and view all the answers

    What type of charge does a glass rod acquire when rubbed with silk?

    <p>Positively charged</p> Signup and view all the answers

    A negatively charged balloon will attract another negatively charged balloon.

    <p>False</p> Signup and view all the answers

    What happens to a neutral pith ball when it touches a negatively charged rod?

    <p>It becomes negatively charged.</p> Signup and view all the answers

    If a positively charged object is brought near a neutral conductor, the conductor becomes __________ due to induction.

    <p>polarized</p> Signup and view all the answers

    Match the phenomenon with its description:

    <p>Friction = Transfer of charge through contact Induction = Separation of charge without direct contact Conduction = Movement of charges due to applied electric field Charge redistribution = Rearrangement of charges resulting in equal distribution</p> Signup and view all the answers

    What happens when a positively charged rod is brought near a neutral metal sphere?

    <p>The sphere is attracted to the rod.</p> Signup and view all the answers

    A negatively charged rod touching a neutral pith ball will result in the pith ball becoming positively charged.

    <p>False</p> Signup and view all the answers

    Explain how a balloon sticks to a wall after being rubbed on hair.

    <p>The balloon acquires a negative charge through friction, which allows it to attract positively charged areas on the wall.</p> Signup and view all the answers

    When two rods touch during charging by conduction, the charges are __________ between them.

    <p>redistributed</p> Signup and view all the answers

    Match each charging method with its description:

    <p>Conduction = Transfer of charge through direct contact Induction = Charge rearrangement without direct contact Friction = Charge transfer due to rubbing Polarization = Separation of charge within an object</p> Signup and view all the answers

    Study Notes

    Electrostatics Practice Quiz

    • Question 1: Determine the charge on the object.

      • The object has a net positive charge. Multiple positive charges are shown.

    • Question 2: Give the following sphere a -3 charge.

      • Draw a sphere with 3 negative charges.

    • Question 3: Choose ONE of the following.

      • a. Negatively-charged balloons repel each other due to like charges repelling.
      • b. A positively charged glass rod attracts neutral aluminum foil because the positive charge in the rod attracts the negative charges in the foil, causing it to move closer. This is an example of electrostatic induction.
      • c. (Diagram needed for this question)

    • Question 4: Choose ONE of the following.

      • a. Rubbing glass with silk makes the glass rod positive. The electrostatic series shows relative tendencies to gain or lose electrons when rubbed together. Silk gains more electrons than glass, leaving the glass rod with a positive charge.
      • b. When you rub a balloon on your hair, electrons are transferred from your hair to the balloon, making the balloon negatively charged. The negatively charged balloon is then attracted to a positively charged wall via electrostatic attraction.

    • Question 5: Describe the effect of a positively charged rod on a metal sphere and a plastic block.

      • Metal spheres will be attracted to a positively charged rod which would cause electrons on the metal to move towards the rod leaving the sphere positively charged. The metal sphere will be attracted to the rod.
      • Plastic will be attracted to a positively charged rod because it will become negatively charged by induction. The plastic will be attracted to the rod.

    • Question 6: Choose ONE.

      • a. Show the redistribution of charge when two rods touch. Demonstrate how charges transfer during contact. The rods will share charges until equally distributed between the two.
      • b. Explain how a negative rod affects a neutral pith ball—Illustrate the charge transfer diagrams that show how negative charges move from the rod to the pith ball. The neutral pith ball will become negatively charged because electrons will move from the rod to the pith ball.
      • c. Explain what happens when the rod is brought near the charged pith ball. How is the pith ball charged? The pith ball will experience repulsion when the rod of the same charge is brought near. The pith ball will be repelled by the rod because the pith ball is now negatively charged.

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    Electrostatics Practice Quiz PDF

    Description

    Test your understanding of electrostatic principles with this practice quiz. Questions cover charge determination, interactions between charged objects, and effects on materials. Ideal for students studying electrostatics in physics.

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