Electrostatics Test Review

What is the magnitude of charge for an electron or proton.

• 1.6 x 10^-19

• 1.6 x 10¹⁹

• 9 x 10⁹

• 9 x 10^-9

What is the value of k?

• 1.6 x 10^-19

• 1.6 x 10¹⁹

• 9 x 10⁹

• 9 x 10^-9

According to the Law of Conservation of Charge, when a balloon is rubbed on a person's head their hair becomes positively charged. Hair _____ and ________.

• gains, protons

• loses, electrons

• protons, loses

• gains, electrons

• protons, gains

List 2 examples of Induction we have seen in class.

• spark

• electroscope

• rubbing silk on a balloon

• Charged balloon to a neutral wall

Opposites ___ and like charges ___.

• repel, attract

• attract, repel

All charges are surrounded by _____ that are drawn from _____ objects to _____ charged objects.

• electric field, positive, negative

• electric field, negative, positive

• gravitational field positive, negative

• gravitational field, negative, positive

The leaves of an electroscope will ______ if neutral electroscope is touched by a neutral object.

• spring apart

• stick together

• not change

The leaves of an electroscope will ______ if neutral electroscope is touched by a charge object.

• spring apart

• stick together

• not change

Which plays a bigger role on the electrostatic force between 2 particles____

• charge

• distance

What is the force between a -5E-20 C charge and a +1E-5 C object that are 0.5m apart?

• 1.34E-7 N

• 1.6E-19 N

• -3.4E-9 N

• -1.8E-14 N