23. PS.9a - Static Electricity

What is static electricity?

• A type of current electricity

• An imbalance of charge on the surface of an object

• The flow of electrons through a conductor

• A type of magnetic field

Tags

VA.PS.9.a

Which of the following is an example of static electricity?

• A light bulb glowing

• A battery powering a remote

• A balloon sticking to a wall after being rubbed on hair

• A fan spinning

Tags

VA.PS.9.a

Explain how rubbing a balloon on your hair can cause it to stick to a wall.

• The balloon becomes positively charged and the wall is negatively charged.

• The balloon becomes negatively charged and the wall is positively charged.

• The balloon becomes negatively charged and is attracted to the negatively charged wall.

• The balloon and the wall both become neutral.

Tags

VA.PS.9.a

Describe the process of charging by friction.

• Transferring electrons from one object to another by direct contact

• Transferring electrons from one object to another by rubbing them together

• Transferring electrons from one object to another by induction

• Transferring electrons from one object to another by grounding

Tags

VA.PS.9.a

What happens to the charges on a neutral object when it is brought near a charged object?

• The charges rearrange themselves

• The object becomes positively charged

• The object becomes negatively charged

• The object remains neutral

Tags

VA.PS.9.a

Which of the following best describes the law of conservation of charge?

• Charge can be created or destroyed

• Charge can be transferred from one object to another

• The total charge in an isolated system remains constant

• Charge can be converted into energy

Tags

VA.PS.9.a

Predict what will happen if two objects with the same charge are brought close to each other.

• They will attract each other

• They will repel each other

• They will become neutral

• They will have no effect on each other

Tags

VA.PS.9.a

A student rubs a glass rod with a silk cloth. What type of charge does the glass rod acquire?

• Positive

• Negative

• Neutral

• It depends on the environment

Tags

VA.PS.9.a

How does grounding help in removing static charge from an object?

• It adds more charge to the object

• It allows excess charge to flow into the Earth

• It neutralizes the charge by adding opposite charges

• It insulates the object from further charging

Tags

VA.PS.9.a

Which of the following is a common cause of static electricity in everyday life?

• Using a battery

• Walking on a carpet

• Turning on a light switch

• Using a magnet

Tags

VA.PS.9.a