electric and magnetic forces lessons 1&2 Topic 5

Front

What is the positively charged part of an atom?

Back

Proton

Front

What causes a compass to point North?

Back

Earth's magnetic field.

Front

If a substance has more electrons than protons, what type of charge does it have?

Back

A negative charge.

Front

Why are copper and plastic used for electrical wires?

Back

Copper is a conductor of electricity, and plastic is an insulator of electricity.

Front

What is the cause of electricity?

Back

Moving electrons.

Front

What is an atom?

Back

The basic unit of a chemical element.

Front

What is a conductor?

Back

A material that allows electricity to flow through it easily.

Front

What is an insulator?

Back

A material that does not allow electricity to flow through it easily.

Front

What is magnetism?

Back

A force that can attract or repel certain materials, typically associated with magnets.

Front

What is static electricity?

Back

An imbalance of electric charges within or on the surface of a material.