What simple machine is made up of a handle or axle attached to the center of a larger wheel
What is wheel & axle
100
List four parts to a lever.
What is fulcrum, bar (lever), load, and effort
100
Define inclined plane
What is flat, slanted surface
100
What is the result of force moving an object over a distance
What is work
100
What is the weight of an object to be moved or the resistance of an object to movement
What is load
200
What is an advantage to using a wheel an axle?
What is reducing the amount of force needed to move an object or transmitting and magnifying force to make us stronger
200
Define lever
What is a straight rigid bar that rests upon a fixed support
200
What is an example of an inclined plane?
What is handicap ramp, door stop (wedge), sink, etc.
200
What is energy, such as a push or pull that changes the motion or shape of an object
What is force
200
What are two simple machine in a scissors?
What is inclined plane and lever
300
Which of the following is an example of a wheel and axle bottle opener, slide, or doorknob?
What is doorknob
300
What are the classes of levers?
What is first class, second class, and third class
300
What is the tradeoff of an inclined plane
What is moving the object a greater distance, but using less force to move it.
300
What is to slant up or down
What is slope
300
What is a principle of a first class lever?
What is
1. the load and effort move in opposite directions
2. the fulcrum is in between the load and the effort.
400
Name an example of a wheel and axle.
What is screwdriver, doorknob, wagon, etc.
400
List an example of each class of lever.
What is seesaw (first), wheelbarrow (second), bat or fishing rod (third)
400
What is an advantage to using an inclined plane
What is reduce the amount of force needed to move an object, and changing the direction of the force that you exert on object
400
What is the resistance caused when two things rub against each other
What is friction
400
What is a a principle of a second class lever?
What is
1.the load and effort move in the same direction
2. the load is in between the effort and fulcrum
3. the effort distance is greater than the load distance
500
What is the relationship of the diameter of a wheel and axle?
What is the diameter of the wheel is greater than the diameter of the axle
500
What is a way levers help us do work?
What is reduce the amount of force needed to move an object or increasing the distance and speed at which you can move the object
500
What is a way to reduce the amount of force needed on an inclined plane?
What is change the slope, length, or surface of the inclined plane
500
What is force that is applied to move the load
What is effort
500
What is a principle of a third class lever?
What is
1. The load and effort move in the same direction
2. The load distance is greater than the effort distance
3. The effort is in between the load and the fulcrum