Question

3 answer because all teeter stand has a sequence.

Answer 1

Answer:

Simple Machines - Levers

Key Terms

eccentric pulley

mechanical advantage

lever

lever arm

power

torque

wheel and axle

"Give me a place to stand and I will move the earth" ... Archimedes

Since humans have limited strength, clever people have built machines that allow feats not previously possible. One of the simplest (and most likely the first) machine is the lever. I'm sure you discovered the magic of the lever as a youngster when you played on the teeter-totter. Somehow, little sister is able to counter the weight of big brother by careful positioning on the apparatus. This may seem very intuitive, but still, it is a device that needed to be invented. Applications of the lever can be found all around your household.