Quiz about 2.1a What is Electricity C4U

Question 1

Conventional Current flows...?

Accepted Answer

Positive to Negative

Answer

Negative to positive

Question 2

Electrons flow...?

Accepted Answer

Negative to positive

Answer

Positive to Negative

Question 3

When a valence electron leaves an atom the atom becomes charged...?

Accepted Answer

Positively

Answer

Negatively

Answer

Neutrally

Question 4

Like charges......

Accepted Answer

Repel

Answer

Attract

Answer

Have no effect on each other

Question 5

unlike charges......

Accepted Answer

Attract

Answer

Repel

Answer

Have no effect on each other

Question 6

What subatomic particles are found in the nucleus of an atom?

Accepted Answer

Protons and Neutrons

Answer

Protons and Electrons

Answer

Electrons and Neutrons

Answer

Protons only

Answer

Neutrons only

Question 7

Will the balloons ATTRACT or REPEL each other?

Accepted Answer

Option B is correct

Answer

A.

Question 8

Only negative charges can move from one material to another.

Accepted Answer

True

Answer

False

Question 9

An object that has the SAME number of Positive and Negative charges has a . . .

Accepted Answer

Neutral charge

Answer

Positive charge

Answer

Negative charge

Question 10

The buildup of electric charges is called . . .

Accepted Answer

static electricity

Answer

electric discharge

Answer

electric charge

Question 11

If a substance has a higher number of electrons than protons on its surface, what type of charge does it have?

Accepted Answer

A negative charge.

Answer

A positive charge.

Answer

A neutral charge

Answer

No charge at all

Question 12

What is the major difference between static electricity and current electricity?

Accepted Answer

Current electricity involves a flow of electrons; static electricity involves a single transfer of electrons

Answer

Current electricity involves a continuous flow of neutrons; static electricity is a sudden transfer of protons

Answer

Current electricity can be deadly; static electricity is almost always safe

Answer

In current electricity, there's a single transfer of electrons; in static electricity, there's a steady flow of electrons

Question 13

What can happen when you touch a metal doorknob after rubbing your shoes on the carpet?

Accepted Answer

Millions of electrons go from your finger into the doorknob

Answer

The doorknob sends a burst of electric current into your body

Answer

Our negatively charged body becomes positively charged

Answer

Our finger becomes negatively charged

Question 14

Which of the following is caused by static electricity?

Accepted Answer

a lightning strike during a storm

Answer

a stove getting hot when it is turned on

Answer

a magnet being attracted to a refrigerator

Answer

a light bulb coming on when a switch is turned on

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