simple machines
A rigid bar that pivots around a fixed point (called a fulcrum) to lift or move objects
What is a Lever
two or more simple machines working together
what are compound machines
this type of energy is stored in an object because of its position or condition
what is potential energy
this force slows things down as two surfaces rub each other (this also creates heat)
what is friction
A grooved wheel with a rope or cable that changes the direction of a force to lift objects
What is a Pulley
a pair of scissors
what are compound
This type of energy is the energy an object has because it is moving
what is kinetic energy
heat moving from a stove to to a pan is an example of what
what is energy transfer
A slanted surface used to raise or lower objects with less force than lifting it straight up
What is an inclined plane
a wheel
What is a simple machine
This is the process where energy moves from one object or system to another
what is energy transfer
eating an apple and then going for a run
what is energy transformation (chemical into mechanical energy)
two inclined planes joined together that are used to split, cut, or push objects apart
what is a wedge
a Wheelbarrow is a compound machine because it combines which two simple machines?
what is lever and a wheel e
This occurs when energy changes from one form to another, like electrical energy turning into light
what is energy transformation
famous cartoonist who showed wacky machines that used chain reactions and simple machines to accomplish simple tasks
who is Rube Goldberg
threads wrapped around a cylinder to hold objects together
what is a screw
a bike is this type of machine
what is a compound machine (wheels/axles and levers)
a series of events that show energy is not created nor destroyed, it is either transformed or transferred
what is a chain reaction
the ability to do work or cause change
what is energy