Transcript w Lizette

Do Now
Quiz 3-1 & 2 Tracking
2: 89% (18)
3: 83% (16)
4: 86% (17)
6: 86% (14)
7: 89% (11)
Practice 70%+
Period 2
Period 3
Period 4
Period 6
Period 7
Jordan B
Cametria
London
Tarajia
Lizette
Amara
Shamon
Nadia
Tania
Amirrah
Derek
Aaron
Tyrone
Kamilah
Dianyeliz
Dariana
Jayla
Shak’la
Jeron
Pakou
Stephen
De Shaune
Montrell
Jeremiah
Amari
Amaya
Legacy
Courtney
Amari
Jaylen
Harry
Tyler
Jasmyne
Machari
Jacqueline
Alexis
America
Jeny
Todd
Mordechai
Jayson
Taylor
Tanieja
Mario
Dominic
Paul
Indigo
Eh Doh
Larry
Brandon
Meredith
La Trell
Tremaine
Aaliyah
Lenaia
Jasmine
Kelly
Quincy
Ashley
Jaylen
Jacklyn
Matthew
Clara
Elijah
Jordan W
Deshaun
Arianna
Sierra
Kierra
Chameng
Derrick
Joscelynne
Make-up
Work
Objectives 3-3
We are learning…
BIG Question

A moving object has kinetic energy KE = ½mv2

To ∆KE, there must be work (force applied over distance
W=Fd)
1.Why does an egg not
break when it lands on a
 Cushioned dashboard and air bags are used to lengthen the
padded
surface
does
distance
over which the
smaller forcebut
can bring
you to a halt.
break when it lands on
We will be successful when we can…
concrete?
 Model
an automobile air bag.

To stop someone during an accident requires a certain amount
of work. The person can be stopped with a large force over a
very short distance or a small force over a larger distance.
 Relate the energy of a moving object to the work
2.How is work related to
Demonstrate an understanding about the relationship
energy during a collision?
between the force of an impact and the stopping
required to stop the object.

distance.
Agenda
• Do Now 5
• Team Challenge 5
• TedEd 10
• Physics Talk 10
• KE Practice 15
Team Challenge
TedEd: All of the energy in the universe is...
Kinetic Energy
Kinetic energy:
energy an object
has because of its
motion
KE = ½ ∙
2
m∙v
Quick Check
How would you describe the kinetic energy of
the egg throughout its fall?
How would you compare the change in the
kinetic energy of the egg when it hit the table
versus when it hit the flour?
KE Practice
1. Underline & label mass (units: kg)
2. Circle & label velocity (units: m/s)
3. KE = ½ mv2 (units: J) Work BACK!
4. Square velocity
5. Multiply by mass
6. Multiply by ½ = 0.5
Homework :D
Physics to Go 3-3
Thursday
2.
A Visit from Vonn
Friday
Due
TODAY!
1.
February 2nd
February 3rd