DAY 76
WELCOME BACK!!! :-)
Hope you had a great three weeks off. I'm stuck at the repair shop with a car that won't start... Should be back Tuesday. Any questions...Remind App or ask Mr. Garcia.
#Goals: SWBAT...
1. Define momentum
2. Describe the components of momentum
WARM-UP: (5min)
A. What is the meaning of Δv? What about Δt? Δp?
B. Imagine a Big Rig hits a Prius. Who wins? Does the velocity of the Prius and/or Big Rig matter? Does the mass of the Prius and/or Big Rig matter?
C. Imagine that when they impact, the Big Rig is going North at 50mph, and the Prius is going South at 50mph. The two vehicles stick together after the collision. Which way will the stuck vehicles travel? Are you sure? How can you be so sure???
D. If you haven't yet, find the formula and definition for Momentum and write them in your warm-up
CLASSWORK
076A: Momentum Knowledge Inventory
- The Inventory is on Schoology (if you can't find it there, here's a back-up: https://arxiv.org/pdf/1602.06497.pdf)
- There are 25 questions, and the questions begin on the bottom of page 13
- In your notes, write the letter answer (A, B, C, etc...) for each question.
- Tomorrow, we will go over the answers, and assess your results.
076B: You Can't Run From Momentum
Get it? If you don't get it, you will (hopefully) after you watch the video, take notes, and answer edpuzzle questions
Lecture Notes: https://www.flippingphysics.com/uploads/2/1/1/0/21103672/0171_lecture_notes_-_you_cant_run_from_momentum.pdf
EdPuzzle: https://edpuzzle.com/media/58863f0975bd5044d59c7cfa
Learning at Home (HW)
Complete 076A and 076B from the classwork
Goal:
SWBAT
1. combine colors to remove (absorb) unwanted colors
2. solve color subtraction problems via algebra equations
WARM-UP
See board. Copy images, and answer the question.
CLASSWORK
076A: Color Subtraction
To create colors, printers and artists use three main colors of paint to remove (absorb) unwanted colors.
Consider a cyan filter - which colors does it allow to pass? Which color will it absorb?
Example 1:
Example 2: Magenta light shines on a sheet of paper containing a yellow pigment. Determine the appearance of the paper.
Example 3: Yellow light shines on a sheet of paper containing a red pigment. Determine the appearance of the paper.
Example 4: Yellow light shines on a sheet of paper containing a blue pigment. Determine the appearance of the paper.
076B: Primary Colors of Paint
A trip to the local newspaper or film developing company will reveal these same principles of color subtraction at work. The three primary colors of paint used by an artist, color printer or film developer are cyan (C), magenta (M), and yellow (Y)
Each primary color of paint absorbs one primary color of light. The color absorbed by a primary color of paint is the complementary color of that paint. The three colors that are primary to an artist (magenta, cyan, and yellow) subtract red, green, and blue individually from an otherwise white sheet of paper. Thus,
Magenta paints absorb green light.
Cyan paints absorb red light.
Yellow paints absorb blue light.
Let's suppose that an artist wishes to use the three primary colors of paint in order to produce a picture of the colorful bird shown at the right. The bird will be painted onto white paper and viewed under white light. It is hoped that the bird will have green tail feathers, a blue lower body, a cyan upper body, a red head, a magenta eye patch, a yellow eye and middle feathers, and a black beak. How can the three primary colors of paint be used to produce such a likeness? And how can we explain the answers in terms of color subtraction?
green tail feathers, apply C & Y
a blue lower body, apply M & C
a cyan upper body, apply C
a red head, M & Y
a magenta eye patch, M
a yellow eye and middle feathers, Y
and a black beak ALLLLLLLLLLLLL
076C: Applications of Color Subtraction:
Activity: LINK
HOMEWORK
Complete 076C
write a sentence explaining how the combination of the indigo and orange filters creates red light.