Levers
How many classes of levers are there?
What is 3?
A wedge is shaped like which letter of the alphabet?
What is V?
Which screw takes more effort to screw in: one with threads closer together or one with threads distanced from each other?
What is the one with threads disctanced from each other?
A wheel and axle is similar to which other simple machine?
What is a lever?
This thing fits into the groove of a wheel to form a pulley
For a lever to be a first class lever the fulcrum needs to be where?
what is between the load and the effort?
What is a thin wedge?
Threads that are ______ have a higher IMA.
What is closer together?
Can the wheel and axle have an IMA greater than 1?
The three types of pulleys: fixed pulley, movable pulley, and _____
What is a pulley system?
To find the IMA of any lever, divide what by what?
What is input force by output force?
A wedge is composed of 2 ______ ______?
What are inclined planes?
A screw is which other kind of simple machine wrapped along a cylinder?
What is an inclined plane?
What is a radius?
The IMA of a fixed pulley is always this amount
What is 1?
A wheelbarrow is classified as which kind of lever
What is a second-class lever?
The IMA of an inclined plane is the distance along the plane divided by _____.
What is height?
What is the thread of a screw usually measured in?
What are threads per inch/centimeter?
The equation to find the IMA of a wheel and axle:
radius where input force is exerted DIVIDED BY the radius where the output force is exerted
The ideal mechanical advantage of a pulley or pulley system is equal to number of these
What are the rope sections?
A lever is used to raised a 12 kilograms mass with an effort that is only 4 kilograms. What is the mechanical advantage?
Find the IMA of a 18 meter long ramp that gains 3 meters of height.
What is 6?
Name a tool used to insert a screw into wood.
What is a screwdriver/drill?
A standard steering wheel has an IMA greater than or less than 1
Greater than 1
If the weight on a movable pulley weighs 6 Newtons, how much force do you need to pull with to move the pulley?
What is 2 Newtons?