6.1/6.2 Test Obj.

Question 1

Explain what lightning is and what causes it

Answer 1

Lightning is a very large electrical discharge. In a thunderstorm, the base of a cloud is negatively charged, these access electrons will temporarily induce a positively charged area by repelling electrons further away from the cloud. Then when enough charge has built up, electrons will move from the cloud to the ground. This is lightning.

Question 2

Explain friction and the movement of electrons

Answer 2

Friction is the force that occurs when rubbing objects together. Electrons are transferred during friction and a static electrical charge is built up.

Question 3

Explain what electric charges are and how they are built up.

Answer 3

Charged particles that exert a force on each other. It is built up by transferring electrons.

Question 4

Explain what static electric charges is.

Answer 4

A electric charge that builds up on the surface on an object.

Question 5

Explain how static is generated.

Answer 5

It is generated by contact or induction

Question 6

Explain electron affinity

Answer 6

The tendency of a substance to hold on to electrons.

Question 7

Explain what insulators and conductors are

Answer 7

Conductors are materials that allow the movement of electrons. Insulators are materials that block or resist the movement of electrons.

Question 8

Examples of conductors and insulators.

Answer 8

Insulators are wood, glass, rubber, pure water, rust. Conductors are copper, iron, aluminum, mercury, steel, silver

Question 9

Explain how electrons in static electricity can be transferred (charging by contact)

Answer 9

You bring a charged object to be in contact with a neutral object. Electrons will flow from the negatively charged object to the neutral object or electrons will flow from the neutral object to the positively charged object .

Question 10

Explain how electrons in static electricity can be transferred (charging by induction)

Answer 10

Bring a charged object near a neutral object. When you bring a negatively charged object to a neutral object, the electrons on the surface of the neutral object will be repelled, inducing a temporarily positive charge on its surface. When you bring a positively charged object Near a neutral object, electrons in the neutral object will be attracted to the positively charged object. Inducing a temporary negative charge on its surface.

Question 11

Explain what electrical discharge is

Answer 11

When electrons flow from a negatively charged object to a positively charged object and render both objects neutral.