Front

In a neutral atom, the number of electrons is equal to the number of _______.

Back

Protons

Front

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

Back

electrons

Front

If you rub a glass rod with a piece of silk, the rod becomes positively charged. What happens to the silk?

Back

The silk has become negatively charged.

Front

What happens when a charged object is brought near an electrically neutral surface without touching it?

Back

The charges in the surface are rearranged by induction.

Front

Objects that have opposite charges

Back

are attracted to each other, and the force between the objects pulls them together.

Front

Charging by ____ occurs when electrons are transferred from one object to another by direct contact.

Back

conduction

Front

Electrical charge built up on the surface of an object is called _________________ (Options: static electricity, current electricity, lightning, electrons)

Back

static electricity

Front

Which of the following is caused by static electricity? Options: 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

Back

a lightning strike during a storm

Front

What is the negatively charged particle in an atom that moves freely and can be released, shared, or “stolen” from an atom?

Back

electron

Front

How can you protect buildings from lightnings or building up a static charge?

Back

A wire running to the ground