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Work is done when a force moves something
force/distance Work is the measured by the amount of_________ times______________
Easier Simple machines make work____________
Energy is the ability to do work.
kinds there are many _______ of energy
change Energy can _________ from one form to another
stored Batteries, food, and fuel have energy that can be used later to do work. This kind of energy is called _______ energy.
light light, bolt sunlight, candle flames
electrical iron, cooking, computer, cell phone
mechanical walking, running, moving, bike pedals, coasting downhill.
Friction A force that slows or stops motion
Magnetism The force of a magnet
Gravity The force that pulls objects toward the center of the earth
Force A push or pull
Weight The amount of force gravity has on an object
True Objects cannot move unless a force causes them to move
the same An object moves ___________ direction as the force it moves in
Easier Simple machines make work _______
True There are many kinds of energy
True Batteries, food, and fuel are examples of stored energy
Motion is a change of position
Direction/far Motion can be described by what _____ an object is going, how _______ it is going, and how fast it is going
faster/direction/slow down A force can make an object go
Energy is the ability to do work
changed Energy can be ____________ from one form to another
stored Energy that can be used later to do work is called ____________ energy
light/mechanical Sound, ______, electrical energy__________ energy, and chemical energy are different kinds of energy.
When is work done? Work is done when a force moves it.
What are five things that can do work? flowing water moves logs, rocks, boats, and water wheels
How is work measured Force x distance= work
Created by: kdemmings