Electricity and Magnetism

An object has a __________charge if it has extra positive charges.

• large

• neutral

• negative

• positive

If the electric fields of two charged objects form a closed pattern of field lines, the objects are _________ charged.

• negatively

• positively

• neutrally

• oppositely

If one bulb is removed from a series circuit, the other bulds will _____________.

• dim

• flicker

• get brighter

• go out

The strip of material that glows in a light bulb is ______.

• a charge

• an insulator

• a resistor

• a conductor

Tags

NGSS.MS-PS2-3

A device that produces motion energy from electrical energy is _________________.

• a compass

• a motor

• an electromagnet

• a generator

Tags

NGSS.MS-PS3-5

The ends of an electromagnet that are useful are called

• cores

• loops

• poles

• wired

How many poles does a magnet have

• none

• one

• two

• four

What supplies energy in an electric circuit?

• Conductors

• electric cells

• resistors

• switches

What is an electric force?

• the push or pull between objects with a different charge

• the push or pull of objects with the same charge

• a measure of the extra positive or negative particles that an object has

• none of the above

Tags

NGSS.MS-PS2-3

Two kinds of charges are

• positive or negative

• negative and neutral

• negative and negative

• positive and postive