wedge
give an example of wedge.
door jam, screwdriver, chisel, knife,
Are stairs an example of an incline plane?
yes
arm, knee, hip...
define a pulley.
a simple machine consisting of a grooved wheel and axle.
define screw.
a screw is an inclined plane that is wrapped around a cylinder.
define wedge.
two included planes joined together.
Is a screw an inclined plane?
yes
What are the three types of levers found in the lever family?
lever, pulley, and wheel and axle.
define pulley
a wheel with a rope or belt around it.
give an example of a screw found at your house.
pickle jar, water bottle, shampoo bottle, ...
give three examples of a wedge.
axe, pocket knife, a fork, a shovel or plow.
give 3 examples of an inclined plane.
a slide, skateboard ramp, a roof, a funnel, a water slide....
define wheel and axle.
a lever or pulley that is connected to a shaft. when the wheel is turned the axle also turns.
Where would you find a pulley?
flagpoles, wells, elevators, window blinds ....
threads
give three more examples of a wedge that have not been discussed.
pencil sharpener, saw, zipper
Why would anyone use an inclined plane?
to make work easier.
define lever.
a bar that can turn around a fixed point.
A car timing belt is an example of a pulley? True or false?
True
is tightening a screw like pushing an object up a ramp?
yes why?
name something found in your mouth that is considered a wedge.
your teeth why?
is a spiral toy car ramp an inclined plane?
yes
What is a fulcrum?
a fixed point around which a lever moves.
Exercise equipment is not an example of a pulley? true or false?
false
OMG is a screw company located in town.
True or false?