levers
wheel and axel
pulleys
inclined planes and wedges
screws
100
give an example of a wheel and axle used to move objects
What is car
100
what is the mechanical advantage of a fixed pulley?
What is to change the direction of your effort force
100
give an example of an inclined plane
What is stairs, ladder, ramp, slide
100
Give an example of a screw from in our classroom.
What is the top of a water bottle, pencil sharpener
200
if you wanted to use your effort force in one direction to make an object move in the other direction you would use this kind of lever
What is first class lever (seesaw)
200
give an example of when a wheel and axle is used to turn objects
What is a doorknob
200
what is the mechanical disadvantage of a fixed pulley?
What is to lift 1m you must pull 1 meter.
200
give an example of a wedge
What is axe, teeth, blade, door stop
200
describe how a screw is the same as an inclined plane
What is they both give a mechanical advantage, spiral staircase
300
a see saw is an example of what kind of lever, firs, second or third
What is first
300
give an example of when a wheel and axle is used to life objects
What is a water well
300
what is the mechanical advantage of a movable pulley?
What is less force is used to lift the load
300
what is the difference between an inclined plane and a wedge?
What is an inclined plane does not move a wedge does.
300
describe how a screw and an inclined plane are different
What is a screw moves and an inclined plane does not
400
what is the fulcrum of a lever
What is the fixed point on which a lever turns
400
give an example of a wheel and axel you have seen today
What is doorknob, bike, car, steering wheel.
400
what is the mechanical disadvantage of a moveable pulley?
What is you have to use twice the effort
400
there are two different types of wedges, what is the difference?
What is one has only one inclined plane and the other side is flat, the other has two inclind planes on each side.
400
true or false a screw can be used to life water
What is true
500
give an example of a lever
What is a seesaw, a bottle opener, a fishing rod
500
true or false, you can use a wheel and axle to move, life or turn an object
What is true
500
what are combined pulleys and what is their advantage?
What is fixed and movable pulleys together. They reduce effort force.
500
Give an example of when an inclined plane would help you decrease your effort force?
What is moving an object from one place to another.
500
which pulley would you use if you wanted to use less effort force to lift a heavy box in the same direction as you pull?
What is a combined pulley
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