The coolest teacher at MGOS
Who is ?
a device that makes work easier and which has few or little moving parts
What is simple machines
The ratio of output force to input force for a given machine.
What is mechanical advantage?
the part of a lever that extends from the fulcrum to the mass being moved
What is a load arm?
a metric unit used to measure work,equal to one newton X meter
What is a joule
What two properties all forces have?
gravitational force, electromagnetic force, weak nuclear force, strong nuclear force
What are the four basic forces?
how do we represent forces on a diagram?
What is an arrow?
What is friction?
the result of a force applied to an object causing it to move
What is work
measure of how strong a force is
What is magnitude?
a tiny inclined plane wrapped around a cylinder
What is a screw
F x d
What is the formula for work?
9.8 N/kg
What is the force of gravity on Earth?