1
a machine made up of two or more simple machines is called a __________________ machine.
compound
Simple machines make work easier by allowing you to apply less ______________ to complete a job/task/move something.
force
What are the three types of simple machines in the inclined plane family?
Inclined plane, wedge, screw
Anything moving has ___________________ energy?
kinetic
What kind of energy is stored in the bonds in atoms and molecules? It is a form of potential energy?
chemical
he most basic machines are called _____________machines.
simple
What three simple machines make up the lever family?
The lever, the pulley, the wheel and axle
When a person is pushing a box up a ramp, he is using what simple machine?
inclined plane
__________________ energy is energy that is stored, or waiting to be released.
potential
X rays are an example of _____________________ energy.
radiant
Picture a man pushing a box as hard as he can. He is starting to sweat but he cannot get the box to move AT ALL. Is he doing work? Yes or No?
Now picture a man pushing the box and finally getting the box to move. Now is he doing work? Yes or no?
NO
YES
A screwdriver used to pry open a paint can is an example of what simple machine?
lever
An ax chopping wood in half is an example of using what simple machine?
wedge
What kind of energy can be either potential or kinetic energy?
mechanical
What is the law of conservation of energy
Energy cannot be created or destroyed
___________ is done when an object changes its position by moving tin the direction of an applied force.
work
Raising a flag to the top of a flagpole is an example of what simple machine?
pulley
A ______________ is an inclined plane that is wrapped around a cylinder.
screw
What kind of energy moves in waves? It is a form of kinetic energy.
radiant
Energy can _________________________ from one form to another.
change
Simple machines make work __________________.
easier
A bicycle is an example of what simple machine?
wheel and axle
What are the two different kinds of energy called?
potential and kinetic
What kind of energy is stored in the center of atoms? It is a potential energy.
nuclear
___________________ energy is energy produced by vibrating particles.
heat