Day 3: 2nd Law

Generative AI Tutor Prompt here.

FQ:  How does acceleration depend on force and mass?

1.  Demos of acceleration with different forces and masses.

Absent?  Watch these videos!

Video 1:  Newton's 2nd Law of Motion. 

Video 2:  N2L with soccer:  

2. Online Lab:  How do forces affect motion?

Complete the following investigation to help you understand how forces change the motion of objects.

Click this link: https://phet.colorado.edu/sims/html/forces-and-motion-basics/latest/forces-and-motion-basics_en.html

Then click "Take Quiz" below.  

3.  Practice calculations:  Newton's Second Law  + Notes on ConceptBoard

4.  Project:  Answer Question #1 and #4  Use N2L to find max safe force and acceleration of incoming object.

5.  Friction group activity:  Classify the 4 types of friction

Friction is the force that opposes motion.

○Sliding friction – opposes the motion of 2 surfaces as they slide against each other

○Static friction – prevents 2 surfaces from sliding against each other at all

○Rolling friction – static friction keeps a wheel from spinning in place and makes it turn instead

○Fluid friction – friction from liquids and gases

• Air resistance is a force that opposes the motion of objects that move through air
• Air resistance depends on an object’s size, shape, and speed