Day 73: Cart and Spring Scale Lab

"What is the relationship between the pulling force and the resulting acceleration of the cart?"

This is the paradigm lab for the Unbalanced Force Particle Model (aka Newton's Second Law). I like this version better than the modified Atwood's machine. Sure, the data may be a bit messier, but I think kids need a kinesthetic feel that constant unbalanced force produces acceleration not constant velocity.

Again, Kelly O'Shea has an awesome and expansive post about this:


About Frank Noschese

HS Physics Teacher constantly questioning my teaching.

Trackbacks / Pingbacks

  1. SS Day 6: Getting Newton’s 2nd Law | Physics180 - June 23, 2014

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

%d bloggers like this: