Push, Pull, or Twist
Kicking a ball
Push
You are running and feel air resistance
Contact
A force that pulls things towards the Earth.
Gravity.
Slides and ramps are examples of this simple machine.
Incline plane
Removing the cap off of a bottle
Twist
Gravity pulls on a Goose as it flies overhead.
Non-contact
Rubbing your hands together.
Friction.
This can be used to lift heavy objects easier.
Pulley
Hugging a stuffed animal
Pull
A magnet attracts nails towards it.
Non-contact.
The force that cars use to move forward.
Thrust.
This simple machine requires a large rod and a fulcrum.
Lever
Dragging a box
Pull
A boat floats on water.
Contact
The force that stops you from falling through the floor.
Normal force.
This simple machine is used to make it easier to push or pull an object.
Wheel and Axle
Closing a car door
Push
You shock your friend.
Non-contact.
The force that allows compasses to work.
Magnetism.
This simple machine is used for things like axes and arrow heads.
Wedge.