Work and Energy
__________ is when force is used to move and object
Work
A machine that only has a few parts
simple machine
A playground seesaw is what type of simple machine
lever
Energy dealing with the tiniest particles of matter
Nuclear
The body system that deals with the heart
Circulatory System
The ability to do work
Energy
Machine made of a bar and a fulcrum
lever
What type of machine is a ceiling fan?
wheel and axle
Energy from the Sun (solar)
Light
Name one biome
Grassland
Desert
Polar
Forest
Rainforest
Energy that is stored
Potential energy
a machine used to change the direction or the amount of force needed to move an object
pulley
What machines are in a pair of scissors
Wedge
Lever
Energy from food and other fuels
Chemical
The building blocks to all types of matter
Elements
Atoms
Matter in motion is ________ energy
Kinetic
the object being moved by a machine
a. effort force
b. load
c. compound machine
b. load
What reduces the efficiency of a machine?
Friction
Energy dealing with the movement of particles (heat)
Thermal
Tell one animal adaptation and what it is used for
answers vary
Chemical energy in converted to electrical energy in a
a. battery
b. a boulder rolling down a hill
c. a marble hitting another marble
a. batter
the amount of force needed to do work
a. load
b. compound machine
c. effort force
c. effort force
Imagine you need to lift an engine out of a car, simple machine would you use
Pulley
(fixed and moveable)
Mechanical
What are the three phases of matter
Liquid
Gas