Physics

Question 1

what are 3 applications of static electricity?

Answer 1

laser printers, fabric softeners, electrostatic precipitators

Question 2

explain friction

Answer 2

when 2 objects are rubbed together (clothes in the laundry)

Question 3

explain conduction

Answer 3

charging through contact, when objects touch and the electric charge is transferred from one object to another

Question 4

explain induction

Answer 4

when the objects don’t touch at all and charge is transferred

Question 5

what is an electric current?

Answer 5

the flow of charged electrons or ions in a circuit. it is measured in amperes.

Question 6

What happens when 2 materials are rubbed together?

Answer 6

friction. before rubbing the materials together, it has an equal amount of positive and negative electrons. when they rub together the electrons (-) go onto the other object, making the original object positive.

Question 7

What is the law of electric charges?

Answer 7

1. like charges repel each other
2. opposite charges attract each other
3. charged objects attract neutral objects

Question 8

what coulomb’s law?

Answer 8

the strength of the electric force with electric charges decreases with increasing distance.