Unit 7 Vocabulary Part 2

Front

Materials such as iron, nickel, and cobalt that attract other metallic objects

Back

magnets

Front

The fixed point around which a lever pivots

Back

fulcrum

Front

A material that conducts heat or electricity well

Back

conductor

Front

A device that makes work easier

Back

machine

Front

A device that receives radio waves and converts them into a sound or light signal

Back

receiver

Front

The force that pulls objects toward the center of the Earth

Back

gravity

Front

A simple machine that consists of a wheel with a rope or chain wrapped around it

Back

pulley

Front

The distance from the center of a circle to its edge

Back

radius

Front

The amount of matter in an object

Back

mass

Front

The rate at which work is done or energy is transferred

Back

power