Forces
A push or pull on an object
What is a force?
a force that resists the movement of objects against each other.
What is friction?
has the load between the fulcrum and the effort
what is second class lever?
When you work you are using?
What is using energy?
Has none or only a few moving parts...
what is a simple machine?
When you exert a force you use?
What is using energy?
the fulcrum between the load and the effort...
what is a first class lever?
Examples of levers...
A paint can opener, claws on back of a hammer,
wheelbarrow, rake
What is the ability to do work?
What is energy ?
a lever, a wheel and axle, a pulley, an inclines plane, a a screw, and a wedge..
What are examples of simple machines?
Examples of using energy...
What is combing your hair, writing with a pencil and putting on a coat?
A change in position...
What is motion?
a greater mass requires...
greater force to move it,,,
How much force it takes to move something ...
What is what work is measured by...
What is the force that causes objects to move...
What is effort?
The force that pulls all objects toward the center of the earth...
What is gravity?
a bar that turns on a point....
What is a lever?
A greater force means...
What is a greater change inposition....
How much force it takes to move something ...
What is - how far it moves?
The pull of an object. Gravity gives that object weight.
What is gravity?
Gravity is what type of force?
What is noncontact force?
the point on which the lever turns..
What is a fulcrum?
effort between the fulcrum and the load
What is Third class lever?
any object that makes work easier
what is a machine?
the weight of an object that is being moved.
What is a load?