If you can't explain it simply, you don't understand it well enough. ~Albert Einstein

Monday, March 3, 2014

Weeks 26-27: Forces

***PLEASE SCROLL DOWN TO SEE THE UPDATED AGENDA FOR THIS WEEK!***

Source: Click here!

"MAY THE FORCE BE WITH YOU."

VOTW - motion, inertia, mass, acceleration, force, friction, gravity, weight, action-reaction

Force isn't just with us, it's all around us.  A force is a push or pull, which means when you look around you you can see objects being pulled or pushed at every corner. Last week we talked about motion. So what is the relationship between motion and force? Let's get into the laws of motion.

1st Law of Motion

The beginning of the commercial briefly revisits the first law of motion: an object at rest tends to stay at rest, while an object in motion stays in motion. However, there is more to this law that just this. We need to spend some time understanding inertia (an object's resistance to changing its motion) and mass (amount of matter in an object).

2nd Law of Motion

When I think of this law it always reminds me of grocery shopping.  Initially, I start with an empty cart.  This cart is rather easy to move, but 45 minutes later that all changes.  By the time my cart is overflowing (and sometimes it really does), it requires much more force just to move it through the aisles and around corners.  The relationship between force, mass, and acceleration is mathematical.  Force=mass x acceleration.  So if I increase the mass, I must increase the amount of force necessary to get the object to accelerate.

3rd Law of Motion

For every action there is an equal and opposite action. How do the examples shared in the video demonstrate this law? Are there other examples you can think of that would work as well? 

Gravity, Weight, & Mass

What is the difference between weight and mass?

Four Types of Friction

What are the four types of friction? Can you provide your own examples?


Our Agenda for the Week


Monday
Gifted --> Force Workbook; wrap up Group Lessons
Regular --> Begin Group Lessons

Tuesday:

G - Force Workbook
R - Force workbook; wrap up Group Lessons

Wednesday:

G: Force Notes: Inertia
R: Force workbook

Thursday:

Field trip to UWG

Friday:

G: Force = MA; Action-Reaction Notes; workbook pages due
R: Force Notes = Inertia; workbook pages due

Monday 3/10
Gifted --Motion Laws Charades
Regular --1st Law of Motion

Tuesday 3/11:
G - Motion Laws Review
R - 2nd Law of Motion

Wednesday 3/12:
G: Forces Math
R: 3rd Law of Motion

Thursday 3/13:
Force and Motion Unit Review

Friday 3/14:
Force & Motion Test
Simple Machines Preview


Other Important Dates:
3/7 - High 5 Celebration
3/14 - Force & Motion Test (DATE CHANGED)
3/21 - Report Cards
3/24 - Simple Machines Test
4/28 - Science CRCT