Physics 12-1-17 Problems Review 2 – Machines, Work, Consv. of Energy . . .

PHYSICS: I wish I could watch you problem solving together! Here’s a head start (if you need it!) –

The first vodcast below is the review of the problems #46 – crate pulled up the incline from the machines homework and #47 – ski acrobat from chapter 5. Below that are the problems #22 – circus monkey on the incline, #21 – diver steps off a diving board, and #46 – a skier is pulled up a slope.

PHYSICS 12-3-14 Help Session: #46 – A Crate and #47 – An Acrobat on Skiis from Tammy Skinner on Vimeo.

flickr photo by William Hall

…and from today’s class:

PHYSICS 12-3-14 #22 – A Circus Monkey, #21 – A Diver, and #46 – A Skier from Tammy Skinner on Vimeo.

flickr photo by SabrinaDay Photo

Physics 11-30-17 Simple Machines

PHYSICS: Did you remember this stuff on simple machines from your physical science days? I don’t think you’ll have any trouble with efficiency and mechanical advantage problems. Give them a whirl and let me know!

How do you think the efficiencies of machines compare? Could you design a method to test that? You don’t need no stinkin’ lab sheets! Do you?
🙂

Physics 11-20-15 Simple Machines from Tammy Skinner on Vimeo.

flickr photo by André Banyai

Physics 12-2-11 Simple Machines

PHYSICS: Happy Friday! Here’s the lecture from Friday on simple machines. We’ll add this little bit of chapter 7 to the chapter 5 test. At the very beginning of the vodcast, I say something completely wrong, and although we correct it later, let me do so again here. The two categories of simple machines are inclined planes and levers. Got it? Sorry about that!

I don’t think you’ll have any trouble with efficiency and mechanical advantage problems. How do you think the efficiencies of machines compare? Could you design a method to test that? Lab Monday and test Wednesday. Have a great weekend! 🙂


flickr photo by André Banyai