Pretest Static Electricity

Electricity happens with the flow of

• electrons.

• water

• plastic

• metal

What's one example of a powerful electrical charge?

• Lightning

• Fire

• Rainbow

• reflection

Protons have a ___________________.

• Positive charge

• Negative charge

• No charge

• conductive charge

Neutrons have _______________.

• conductive charge

• Negative charge

• no charge

• positive charge

If two charges repel each other, the two charges must be ..

• Positive and neutral

• Positive and negative

• positive and neutral

• negative and negative

An object becomes charged when the atoms in the object gain or lose

• electrons

• protons

• neutrons

• all of the above

If you rub a glass rod with a piece of silk, the rod becomes positively charged. This means that

• friction destroyed electrons in the rod.

• the silk has become negatively charged.

• protons have moved to the rod.

• glass attracts more protons.

The accumulation of excess electric charge on an object is called

• Static electricity

• Electric discharge

• Resistance

• Current electricity

Mr. Anady rubbed two balloons against his wool sweater for 30 seconds each. What will happen when the balloons are brought near each other?

• The balloons will repel each other.

• The balloons will attract each other.

• The balloons will become positively (+) charged.

• The balloons will pop.

Which of the following is caused by static electricity?

• a stove getting hot when it is turned on

• a magnet being attracted to a refrigerator

• a lightning strike during a storm

• a light bulb coming on when a switch is turned on