unit 2 (motion & forces), day 1 distance vs. displacement, speed vs. velocity

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