Bell Ringer 3-5-10 What simple machine do we sometimes put under a door to keep it open? What simple machine helps you travel in a car? What simple machine brings a bucket of water to the top of a well? What simple machine are you using when you cut a piece of paper with scissors? What simple machine are you using when you use the ramp outside of a building rather than the stairs?
The SI unit for power
Output force divided by input force
A simple machine that consists of a grooved wheel with a rope or cable wrapped around it
The force a machine exerts on an object
Force x distance
A device that combines two or more simple machines
The SI unit for work
Input force x Input distance
Work divided by time
The fixed point a lever pivots around
The force you put on a machine
Simple machine that is a flat, sloped surface
Simple machine that consists of a rigid bar that pivots about a fixed point
The SI unit for power
A device that changes the amount of force, distance, or direction (It makes work easier.)
The percentage of the input work that is converted
Output force x Output distance
A simple machine that is an inclined plane wrapped around a central cylinder to form a spiral