unit 2 (motion & forces), day 1 distance vs. displacement, speed vs. velocity
TRANSCRIPT
Unit 2 (Motion & Forces), Day 1
Distance vs. Displacement, Speed vs. Velocity
Student Entrance
Pick up 4 papers
Catalyst, Walking Directions (Distance),
Physics Reference Sheet, Homework
Begin Catalyst
Silent activity
Respond to questions on the CATALYST sheet
Use complete sentences
Will be turned in to Mrs. Larkin
Agenda 10 min: Catalyst (Exam Reflection) 25 min: Activity (Distance Activity,
Displacement Activity) 25 min: Notes (Dist. vs. Disp., Scalar vs.
Vector) 7 min: Break 8 min: Practice (Distance vs. Displacement) 10 min: Notes (Speed vs. Velocity) 13 min: Practice (Speed) 2 min: Homework (Speed vs. Velocity)
Collect Catalyst
Announcements If you were absent Monday/Tuesday, I need your labs! Students must take exam by Thursday at 4:00 PM Otherwise you will receive a ZERO in the gradebook
Period 1-3 Aidan Mobley Brie Quinones
Period 2-4 Robbie Schraer
Period 6-8 Bianca Covarrubias Jasson Montenegro Siri Khalsa
Period 9-11 Lauren Lopez
Walking Directions (Distance)
Follow the directions on the worksheet
Stay in the courtyard
Everyone should do their own steps and turns
5 minute activity
Be quick and efficient
Focus on what you are doing, not on others
Think-Pair-Share Mrs. Larkin’s Example
Think-Pair-Share
Think:
Recall your journey
Map it out on the dots as Mrs. Larkin did
Pair:
Compare journeys with your group members
Share:
3 people called at random to draw their journeys
Walking Directions (Displacement)
NEW DIRECTIONS!
Follow the directions on the worksheet
Stay in the courtyard
Everyone should do their own steps and turns
5 minute activity
Be quick and efficient
Focus on what you are doing, not on others
Think-Pair-Share
Think:
Recall your journey
Map it out on the dots as Mrs. Larkin did
Pair:
Compare journeys with your group members
Share:
3 people called at random to draw their journeys
Think-Pair-Share Mrs. Larkin’s Example
Collect BOTH Walking Directions All that you should have left
White homework worksheet Pink physics equation sheet
Distance vs. Displacement
Notebook9/25 or 9/26
UNIT 2 (MOTION & FORCES), DAY 1
• Distance vs. Displacement
Distance vs. Displacement Draw small Venn Diagram (about size of hand)
Talk to your group: 2 similarities for distance & displacement 1 difference for distance & displacement
Distance vs. Displacement
Distance: how much the object has moved
Displacement: how far object is from its
starting point
Distance vs. Displacement
Notebook9/25 or 9/26
UNIT 2 (MOTION & FORCES), DAY 1
• Distance vs. Displacement
• Scalars vs. Vectors
Scalar vs. Vector
Scalar: measurement , no
direction
To represent a scalar, use a letter
Distance: d
Time: t
Speed: v
Scalar vs. Vector
Vector: measurement WITH
direction
To represent a vector, use a letter &
arrow
Displacement: x or y
Velocity: v
Acceleration: a
Scalar vs. Vector Why x or y for displacement?
+X-x
+y
-y
(horizontal)
(vertical)
Memory Trick:• H is before V, justlike X is before Y
ALONG THE GROUND
FALLING DOWN
BREAK 7 minutes Must be seated, otherwise TARDY
Practice
Whiteboards60 seconds: group nameWork with your groupDo not lose markersTry to not show your answers to other groups!
Practice Mrs. Larkin runs forward 10 feet. She then
turns around and runs back 7 feet. What distance did she run?
Practice Mrs. Larkin runs forward 13 feet. She then
turns around and runs back 6 feet. What displacement did she run?
Practice Shadow runs 3 meters east, then 2 meters
north, then 3 meters west. What distance did she run?
Practice Shadow runs 4 inches north, then 5 inches
east, then 4 inches south. What displacement did she run?
Practice
Ms. Parsons drives to and from Da Vinci
Design, which is located 5 miles from her
house.
A. What is the total distance she drives every day?
B. What is her displacement every day?
Practice La Luz runs a complete circle around the
classroom. What displacement did she run? (Use feet)
Practice
La Luz and Shadow are racing each other
around a circular track. The track is 500
meters around and 159 meters across. La Luz
gets tired and stops halfway around. Shadow
finishes the race.
A. Who has the greater displacement?
B. By how many meters?
500 meters around
159 meter
sacross
Practice
La Luz and Shadow are racing each other
around a circular track. The track is 500
meters around and 159 meters across. La Luz
gets tired and stops halfway around. Shadow
finishes the race.
A. Who ran the greater distance?
B. By how many meters?
500 meters around
159 meter
sacross
Figuring Out an Equation Here are some units for speed:
Miles per hour (mi/h) Kilometers per hour (km/h) Meters per second (m/s) Feet per second (ft/s)
What do all the numeratorshave in common?
What do all the denominatorshave in common?
h
mi
h
km
s
m
s
ft
Speed vs. Velocity
Notebook9/25 or 9/26
UNIT 2 (MOTION & FORCES), DAY 1
• Distance vs. Displacement
• Scalars vs. Vectors
• Speed vs. Velocity
Speed vs. Velocity
Speed (SCALAR) is the total distancetraveled in a certain amount of time.
Speed vs. Velocity
Velocity (VECTOR) is the displacement (change in position) that occurs in a certain amount of time.
Practice - Whiteboards Running 59.8 miles in 2 hours
When finished with whiteboards, get this problem into notebooks
Practice - Whiteboards Running 150.6 kilometers in 3 hours
When finished with whiteboards, get this problem into notebooks
Practice - Whiteboards Running 33.75 meters in 2.5 seconds
When finished with whiteboards, get this problem into notebooks
Practice - Whiteboards Running 21.65 feet in 0.5 seconds
When finished with whiteboards, get this problem into notebooks
Physics Reference Sheet
Velocity:Speed:
Homework
Unit 2, Day 1 – Homework
Worksheet for Speed & Velocity
Due FRIDAY, SEPTEMBER 27TH
Look at the homework on projector
If there is extra time, students can work on this before leaving