Magnets & Static Electricity

Front

What happens to the hairs of a person touching a Van de Graaff generator?

Back

Each hair has the same charge, causing them to repel each other.

Front

What is the interaction between the electrical charges of a balloon and plastic?

Back

The electrical charges are repelling each other.

Front

What are electromagnets used in?

Back

Electromagnets are used in various applications, including motors, generators, and magnetic locks.

Front

What is NOT needed to build an electromagnet?

Back

A permanent magnet is NOT needed to build an electromagnet.

Front

What type of magnet is known for being very strong and potentially dangerous?

Back

Neodymium magnets are known for their strength and can be dangerous.

Front

Define static electricity.

Back

Static electricity is the accumulation of electric charge on the surface of objects.

Front

What is the principle behind how a Van de Graaff generator works?

Back

It works by transferring charge to a metal sphere, creating a high voltage.

Front

What is the role of an electromagnet in a circuit?

Back

An electromagnet can create a magnetic field when an electric current passes through it.

Front

How do like charges interact with each other?

Back

Like charges repel each other.

Front

How do opposite charges interact with each other?

Back

Opposite charges attract each other.