Physics & Physical Science Demos, Labs, & Projects for High School Teachers

Demonstrating the Force Components of Vectors

Posted on: May 31, 2008

This is much harder to write than to show. The physics books usually have a problem about the tension in a horizontal cloths line with a single force hanging down in the middle. We can calculate these forces fairly easily, but hands on is better. The outdoor demonstration is to tie a strong rope between a tree and a car, then moving the car by applying a perpendicular force on the rope at the midpoint.

There is an even more effective demonstration of this that can be done in the classroom. It’s a martial arts escape from two attackers. I like to pick the two strongest and largest students as my victims. They each grab one of my wrists and pull away from each other. (They think they are so tough.) I then take a big step backwards and pull my hands towards each other. The two attackers move towards each other with a great deal of force and almost always bump into each other with surprising speed and force.

What do you think? Your opinion matters, leave a reply.

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

What’s New in 2013/2014?

Every year brings a change, this one is no exception.

I will be picking up the sophomore honors Algebra II class to keep them separate from the juniors. This should help accelerate them and put them on a stronger track towards Calculus. Looks like there will be only one section each of Physics and Calculus, but still two of Robotics & Engineering.

Hot topics this year are going to be the Common-Core Standards, Standards-Based Grading (SBG), improving AP Calculus scores, and somehow adding Python, maybe as a club.

Polls in the sidebar

Just a quick poll to help me understand who is stopping by my blog.

Yeah sure, lots from America, but look who else is here…

If you are badly in need of more email or for some reason jonesing for a physics fix, enter your email address so I can bother you with my newest rant on science.

Join 279 other followers

Blog Stats

  • 1,076,798 hits by nerds like me since June 1, 2008
May 2008
    Jun »

Get every new post delivered to your Inbox.

Join 279 other followers

%d bloggers like this: