NGSS Standard (this is what we're learning with this unit)
Analyze data to support the claim that Newton’s second law of motion describes the mathematical relationship among the net force on a macroscopic object, its mass, and its acceleration. [Clarification Statement: Examples of data could include tables or graphs of position or velocity as a function of time for objects subject to a net unbalanced force, such as a falling object, an object sliding down a ramp, or a moving object being pulled by a constant force.] [Assessment Boundary: Assessment is limited to one-dimensional motion and to macroscopic objects moving at non-relativistic speeds.]
#Goals: SWBAT...
1. Choose a scenario for their art project
2. Draw correct FBD's, with appropriate vector magnitude and direction.
3. Use FBD's to find Net Force x & y, Ff, Fn, etc.
WARM-UP
none
CLASSWORK
flex time today - you can split your time, or choose to focus on one assignment
1. 052B: Make Room 37 Pretty Again #MRPA
Today SCIENCE and ART will band together, to Make Room 37 Pretty Again #MRPA
Your task: take one of the Wizard level problems you already solved (LINK), and make the solution look professional, interesting, and cool. For Mastery level scores, modify the scenario and include a real object, with real masses, real mu value, etc.
For example, you could diagram a 2019 Ford Mustang slowing down on pavement. To be accurate, you would look up the mass of a 2019 Mustang, the coefficient of friction between tires and pavement, choose a reasonable acceleration value (most street tires can only handle up to about 9m/s2), and calculate the actual numbers for Fg Fn Ff.
Cool link for tire coeff of friction (thanks Maya!): http://hpwizard.com/tire-friction-coefficient.html
Another cool link: https://www.engineeringtoolbox.com/friction-coefficients-d_778.html
Your tools: The already solved problem, your notebook, a piece of White Drawing Paper, some markers, and...... the rubric: http://rubistar.4teachers.org/index.php?screen=ShowRubric&rubric_id=2772035
The Steps:
Map out a rough draft showing where you'll put all the components of your drawing (2-4min). You should do this in your notebook, under where you wrote the scenario for today's warm-up
I suggest you paraphrase the scenario - it's rather long.
Want to be creative? Add a character, or a poem, or a cooler object than just a plain square box...? Want to draw your FBD the easy (slightly incorrect) way, or the harder (but correct) way?
Draw it!
#MRPA
2. 052C: Force / Newton's Laws Exam Review
Exam Tuesday
Review quizzes from this unit, your warm-ups, and the questions in the link below:
PROBLEMS: 1-6 (all), 7(a-i), 8a, 9, 10, (skip 11), 37(a-e)
LINK: https://www.physicsclassroom.com/reviews/Newtons-Laws/Newtons-Laws-Review-Questions-with-Links
LEARNING AT HOME (HW)
1. Forces/Newton's Laws Exam:
Tuesday
Review quizzes from this unit, your warm-ups, and the questions in the link below:
PROBLEMS: 1-6 (all), 7(a-i), 8a, 9, 10, (skip 11), 37(a-e)
LINK: https://www.physicsclassroom.com/reviews/Newtons-Laws/Newtons-Laws-Review-Questions-with-Links
NGSS Standard (this is what we're learning with this unit)
Analyze data to support the claim that Newton’s second law of motion describes the mathematical relationship among the net force on a macroscopic object, its mass, and its acceleration. [Clarification Statement: Examples of data could include tables or graphs of position or velocity as a function of time for objects subject to a net unbalanced force, such as a falling object, an object sliding down a ramp, or a moving object being pulled by a constant force.] [Assessment Boundary: Assessment is limited to one-dimensional motion and to macroscopic objects moving at non-relativistic speeds.]
#Goals: SWBAT...
1. Draw correct FBD's, with appropriate vector magnitude and direction.
2. Use FBD's to find Net Force
3. Describe the relationship between mass, net force, and acceleration
WARM-UP
Today SCIENCE and ART will band together, to Make Room 37 Pretty Again #MRPA
Choose one problem from the three Wizard problems we did yesterday, and copy the scenario into your notes
CLASSWORK
1. #055A: Quiz (12min)
2. #055B: Make Room 37 Pretty Again #MRPA (30min)
Your task: take one of the Wizard level problems you already solved, and make the solution look professional, interesting, and cool.
Your tools: The already solved problem, your notebook, a piece of White Drawing Paper, some markers, and...... the rubric: http://rubistar.4teachers.org/index.php?screen=ShowRubric&rubric_id=2772035
The Steps:
Map out a rough draft showing where you'll put all the components of your drawing (2-4min). You should do this in your notebook, under where you wrote the scenario for today's warm-up
I suggest you paraphrase the scenario - it's rather long.
Want to be creative? Add a character, or a poem, or a cooler object than just a plain square box...? Want to draw your FBD the easy (slightly incorrect) way, or the harder (but correct) way?
Draw it!
#MRPA
3. #055C: Warm-Up Check: Day 46-55
LEARNING AT HOME (HW)
1. Complete #055B #MPRA. Due Monday
2. Forces Exam:
next week
Begin reviewing by answering questions in the link below:
PROBLEMS: 1-6 (all), 7(a-i), 8a, 9, 10, (skip 11), 37(a-e)
LINK: https://www.physicsclassroom.com/reviews/Newtons-Laws/Newtons-Laws-Review-Questions-with-Links
Goals: SWBAT...
1. Use the momentum conservation model to solve problems
Warm-Up (5min):
Test friday on momentum and impulse
1. A 15-kg medicine ball is thrown at a velocity of 20 km/hr to a 60-kg person who is at rest on ice. The person catches the ball and subsequently slides with the ball across the ice.
a. What is conserved in this collision?
b. Determine the velocity of the person and the ball (they're now moving together) after the collision.
CLASSWORK
1. #055A: Elastic Collisions
A 3000-kg truck moving with a velocity of 10 m/s hits a 1000-kg parked car. The impact causes the 1000-kg car to bounce off of the truck and be set in motion at 15 m/s.
In this instance, the two objects didn't stick together. Is momentum still conserved?
Determine the velocity of the truck immediately after the collision.
2. #055B: Practice Problems:
1. In a physics lab, 0.500-kg cart (Cart A) moving rightward with a speed of 92.8 cm/s collides with a 1.50-kg cart (Cart B) moving leftward with a speed of 21.6 cm/s. The two carts stick together and move as a single object after the collision. Determine the post-collision speed of the two carts. ANSWER: 7 cm/s
2. A 25.0-gram bullet enters a 2.35-kg watermelon and embeds itself in the melon. The melon is immediately set into motion with a speed of 3.82 m/s. The bullet remains lodged inside the melon. What was the entry speed of the bullet? (CAUTION: Be careful of the units on mass.) ANSWER: 363m/s
3. A 25.0-gram bullet enters a 2.35-kg watermelon with a speed of 217 m/s and exits the opposite side with a speed of 109 m/s. If the melon was originally at rest, then what speed will it have as the bullet leaves its opposite side? (CAUTION: Be careful of the units on mass.) ANSWER: 1.15m/s
4. In a physics lab, a 0.500-kg cart (Cart A) moving with a speed of 129 cm/s encounters a magnetic collision with a 1.50-kg cart (Cart B) that is initially at rest. The 0.500-kg cart rebounds with a speed of 45 cm/s in the opposite direction. Determine the post-collision speed of the 1.50-kg cart. ANSWER: 58.0cm/s
5. A 3000-kg truck moving rightward with a speed of 5 km/hr collides head-on with a 1000-kg car moving leftward with a speed of 10 km/hr. The two vehicles stick together and move with the same velocity after the collision. Determine the post-collision velocity of the car and truck. (CAREFUL: Be cautious of the +/- sign on the velocity of the two vehicles.) ANSWER: 1.25km/hr RIGHT
6. During a goal-line stand, a 75-kg fullback moving eastward with a speed of 8 m/s collides head-on with a 100-kg lineman moving westward with a speed of 4 m/s. The two players collide and stick together, moving at the same velocity after the collision. Determine the post-collision velocity of the two players. (CAREFUL: Be cautious of the +/- sign on the velocity of the two players.) ANSWER: 1.14m/s EAST
At Home Learning (HW)
1. Complete #055B
2. Study for Friday's test (review days 46 thru today)
3. Solutions for day 54 CW/HW are here LINK1 for probems 1-3, and there's a video here for problems 4-5: LINK2