Now We Can Relax

Physics A reviewed their torque homework then moved onto the area of simple machines. We listed and described each, concentrating on how they manipulated force and distance to make work easier. Remember that whatever you get from a machine (more force or distance) you lost in the other variable. Machines cannot multiply both force and distance simultaneously as that would violate the law of conservation of energy. We took a look at mechanical advantage (both ideal and actual) and efficiency as ways to describe machines and why efficiency can never be more than 100% (that pesky conservation of energy thing). Monday, you'll be working on a lab focusing on centripetal force.

Which is what Physics B did during long block. This lab has you examine variables relating to circular motion - centripetal force, speed and distance - and how how they relate to each other. We'll go over the lab on Monday before hopping into the topic of simple machines.

Intro Physics worked on their forces in fluids exam and are going to start work & energy on Monday. Honors Physic reviewed for their fluid forces exam and start of heat energy on Tuesday.

Have a good weekend!