Static electricity (physics only): Practice Questions

• a.

  They gain equal and opposite charges.

• b.

  They both gain the same type of negative charge.

• c.

  They both gain the same type of positive charge.

• d.

  The material that was rubbed hardest becomes more charged than the other.

• a.The field lines form concentric circles around the sphere.
• b.The field lines point radially outwards away from the sphere.
• c.The field lines point radially inwards towards the centre of the sphere.
• d.The field lines point from the north pole to the south pole of the sphere.

• a.

  The field lines are radial and point outwards away from the center of the sphere.

• b.

  The field lines are radial and point inwards towards the center of the sphere.

• c.

  The field lines are parallel and move from left to right across the sphere.

• d.

  The field lines form concentric circles around the outside of the sphere.

• a.

  The objects exert a force of attraction on each other.

• b.

  The objects exert a force of repulsion on each other.

• c.

  No force is exerted between the objects unless they are touching.

• d.

  The charges cancel each other out, making both objects neutral.

• a.

  Because the air between them becomes more conductive.

• b.

  Because the electric field lines become more spread out.

• c.

  Because the objects start to share their electrons.

• d.

  Because the electric field is strongest close to the charged object.

Write your answer out first, then check it against the worked solution.

Write your answer out first, then check it against the worked solution.

Write your answer out first, then check it against the worked solution.