Front

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

Back

Protons

Front

If two charges repel each other, the two charges must be: Positive and neutral, Positive and negative, positive and neutral, negative and negative

Back

negative and negative

Front

An object becomes charged when the atoms in the object gain or lose: electrons, protons, neutrons, all of the above

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 to charges in a neutral surface when a charged object is brought near without touching?

Back

induction.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Front

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

Back

conduction

Front

When you pull a cotton sweater off your skin, electrons are transferred from the _______________ to the ______________. As a result, your body acquires a ___________ charge and the cotton sweater acquires a ___________ charge.

Back

skin, cotton, +, -

Tags

NGSS.MS-PS2-3

Front

Which of the following is an example of a conductor? plastic, copper, glass, rubber

Back

copper

Front

If the balloon has a negative charge, the hair must have what charge?

Back

positive

Tags

NGSS.MS-PS2-3

Front

_______ is when there is a buildup of charges (more of one type of charge) on an object.

Back

static electricity