wedges a wedge is a item that you cut with. a wedge are two inclined planes
TRANSCRIPT
Wedges
• A wedge is a item that you cut with.
• A wedge are two inclined planes.
Pulley
• A fixed pulley is attached to a item that cannot change position.
• Plus you pull down for the effort force.
Levers• A first-class lever has the fulcrum is in
the middle and you push down and the load goes up.
• In a second-class lever has the fulcrum at the end and the load is on the center plus you pull up.
• A third-class lever has the fulcrum at the end the load is at the other side and the effort force is on the middle.
Screw
• A screw sticks to pieces of wood together. Plus it is a twisted inclined plane.
• It helps us by making shelter and tools.
Inclined plane
• A inclined plane is a slanted surface.
• It helps by loading goods on a truck.
Wheel and axle
• A wheel and axle is two parts one part is a wheel the other part is a rod that passes through the center.
• When the wheel is twisted the axle twist and it can open a door.