Simple machines-inclined plane, wedge, screw
What is an inclined plane that is wrapped around a cylinder called?
A screw
How is a nail similar to a screw?
Both have a wedge at the tip to split apart the wood.
How is a wedge like an inclined plane?
Both have at least one slanted side. In fact, a wedge is basically 2 inclined planes that are back-to-back. An axe head is an example of a wedge. Let's say an axe is swung into a piece of firewood. It is driven down into the firewood, but the wedged shape of an axe causes the wood to split apart towards the side.
What is a wedge used for?
Cutting, splitting, piercing and separating.
What is the tradeoff when using a wedge to lift a load?
In order to use less force to lift or separate an object, you need to move the wedge a greater distance.
How does a wedge make it easier to lift a load?
It reduces the amount of force needed to lift the load.
What is the tradeoff when using a screw?
It takes longer to drive the screw into the wood than it does to pound in a nail.
Which is shorter? The length of a nail or the length of the threads (the inclined plane wrapped around) on a screw?
Nail
Which is easier to drive into the wood? nail or screw?
Screw
Which takes longer to drive into the wood? nail or screw?
Screw
When you push a wedge down into something, which way do the separated parts move?
The downward force of the wedge is transferred to push the separated objects OUTWARD or TO EACH SIDE.
How is a nail different from a screw?
The nail moves in the same direction as the force applied to it by the hammer. However, the screw requires a twisting force (torque). Depending upon which way you twist, the screw will go up or down.
What is a fulcrum?
The point on which a lever rests or is supported and on which it pivots.
How do screws make your work easier?
They reduce the amount of force needed to drive the fastener (screw) into the wood.
How is a wedge different from an inclined plane?
To move an object using an inclined plane, you apply the force directly to the object. However, to move (split or separate) something using a wedge, you apply the force to the wedge and it translates the force to the object.
Two inclined planes that are back-to-back are called?
Wedge
A Ramp is an
incline plane
A binder is an
incline plane
A stair is an
incline plane
A crowbar is a
lever
A seesaw is a
lever
A flag pole is a
pulley
An elevator is a
pulley
A jar is a
screw
A lid is a
screw
What type of simple machine is found in a water bottle cap?
screw
A screw is a
webge
And axe is a
wedge
A door knob is a
wheel and axle
A water faucet is a
wheel and axle
