More on Simple Machines!

Simple Machines need some help in order to work! In order to fully understand simple machines, we must be familiar with this vocabulary:


  • Force: the physical interaction between to or more objects!
    • Push and Pull are examples of force
      • pull--> toward the force
      • push--> away from the force
  • Mechanical Advantage: Simple Machines applying force when they are used, making the work easier to do.
    • more simple machines--> higher mechanical advantage 
  • Effort: how much force is applied to the machine
    • Simple machines decrease the amount of effort needed
  • Distance: How much the simple machine moves.
    • Simple machines increase the amount of distance
  • Friction: the effort used when one object rubs against each other.
    • Three main categories:
      • rough
      • smooth
      • slippery
    • The motion of an object being pulled across that surface is affect by the surface texture. 
  • Compound Machine: made up of two or more simple machines
    • higher mechanical advantage (less effort)
One common word we keep seeing is EFFORT. Why is that?

Well, simple machines and effort go hand and hand. Simple machines decrease the effort. Their purpose is to make our lives and work easier. Just think, cars are compound machines, they make our lives easier by decreasing our effort needed to move!! Its all about EFFORT.

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