Vocabulary April 20th

Vocabulary April 20th

inventions

something that has never been made before, or the process of creating something that has never been made before

Multiple Choice

electroscope

transistor

a small electrical device containing a semiconductor, used in televisions, radios, etc. to control or increase an electric current

Multiple Choice

spiral

computer

an electronic machine that is used for storing, organizing, and finding words, numbers, and pictures, for doing calculations, and for controlling other machines

Multiple Choice

induction

radio

a piece of electronic equipment used for listening to radio broadcasts

Multiple Choice

Fibonacci

internet

the large system of connected computers around the world that allows people to share information and communicate with each other

Multiple Choice

compass

wheel

a circular object connected at the centre to a bar, used for making vehicles or parts of machines move

Multiple Choice

dyscalculia

vote

to express your choice or opinion, especially by officially writing a mark on a paper or by raising your hand or speaking in a meeting

Multiple Choice

magnetic field

electron

an extremely small piece of matter with a negative electrical charge

Multiple Choice

percent

spark

a very small piece of fire that flies out from something that is burning, or one that is made by rubbing two hard things together, or a flash of light made by electricity

Multiple Choice

repel

photocopier

a machine that makes copies of documents using a photographic process

Multiple Choice

static

duster

a stick with feathers at one end, or a similar object with cloth attached to one end, used for cleaning

Multiple Choice

attract

spiked

with a sharp point or points

Multiple Choice

hazard

thread

a length of a very thin fiber

Multiple Choice

magnet

poles

one of the ends of a magnet where the magnetic force is strongest

Multiple Choice

lightning

magnetized

to make an object magnetic

Multiple Choice

thunder