Negative charges repel positive charges.
t/f
If a negatively charged rod is brought close to an electroscope that is negatively charged, the two leaves will move farther apart.
T/F
Electrical charges exist in the sea and in the air.
T/F
Coulomb's law describes gravitational attraction
T/F
An insulator does not allow electrons to flow freely through it.
T/F
Coulomb's law predicts that charged bodies may attract or repel each other.
T/F
Electric fields have magnitude and direction.
T/F
An electric field is a measure of the force on a unit positive charge.
T/F
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