PICK UP 1. Papers & calculator

TURN INU1 – 7 (salmon)

DO NOW1. On a half sheet solve

using GUESS:

If you are displaced 5m

behind where you started

over a time of 2 seconds.

What is your velocity?

HW: U1 – 10 (brown) 11/17

Next Test: Friday!

U1

Why it matters in LIFE:

Part of being a

functional human

being is being able to

understand what’s

happening in the world

around you!

Why it matters in THIS CLASS: Our Goal = 80%

Mastering today’s lesson (focused

participation, asking questions, etc)

is the first brick that will help us

reach our goal for this unit, and

eventually for the year

By the end of today, IWBAT…-Calculate displacement, initial velocity,

final velocity, time, and acceleration

using multiple equations

TEKS:

4(B) describe and analyze motion in

one dimension using equations with

the concepts of distance,

displacement, speed, average

velocity, instantaneous velocity, and

acceleration;

Topic:

Kinematic Equations

By the end of today, IWBAT…

-Calculate displacement, initial

velocity, final velocity, time, and

acceleration using multiple

equations

How velocity changes over time.

or

Where:

a = acceleration (m/s2)

v = velocity (m/s)

∆t = time (s)

ACCELERATION, a (Units m/s2)

𝑎 =∆𝑣

∆𝑡𝑎 =

𝑣𝑓 − 𝑣𝑖

∆𝑡

How velocity changes over time.

Where:

a = acceleration (m/s2)

v = velocity (m/s)

∆d = displacement (m)

ACCELERATION, a (Units m/s2)

𝑎 =𝑣𝑓2 − 𝑣𝑖

2

2∆𝑑

Where:

a = acceleration (m/s2)

vi = initial velocity (m/s)

∆d = displacement (m)

∆t = time (s)

DISPLACEMENT, ∆d (Units m)

∆𝑑 = 𝑣𝑖∆𝑡 +1

2𝑎∆𝑡2

A honey badger starts at rest and travels 13m with

an acceleration of 1.4 m/s2. What was its final

velocity?

EXAMPLE #1

Vince, Mrs. K’s husband, drives like a grandpa. As a

light turns red, he starts with a velocity of 12 m/s

and brakes to a stop with an acceleration of -3

m/s2. How far did he travel during this time?

#2 W/ PARTNER

Stitch travels 150,000,000m to get to earth from

his home planet. If it takes him 72 hours, and he

starts from rest, what was his acceleration?

EXAMPLE #3

Nyan Cat travels 134m over a time of 6s. If Nyan

Cat has an acceleration of 4.5m/s2, what was its

initial velocity?

#4 W/ PARTNER

A leopard sprints from a velocity of 20 m/s to 39

m/s in 4.1 seconds. How far did the leopard

travel in the given time?

EXAMPLE #5

But Mrs. K! What if there isn’t an equation with the givens and the unknowns?!!!

Sometimes, more than one equation needs to be used.

Figure out what you’re missing, find it, and then go back to the first EQ.

COMPLEX KINEMATICS

A leopard sprints from a velocity of 20 m/s to 39

m/s in 4.1 seconds. How far did the leopard

travel in the given time?

a= 4.63 m/s2

Δd = 120.92 m

EXAMPLE #5

An airplane in the sky is accelerating at a rate of

24 m/s2. If it takes the plane 6 seconds to travel

1200 m, what is the final velocity of the airplane?

vi = 128 m/s

vf = 272 m/s

#6 W/ PARTNER

Procedure for IP time:

1) Silent work time

2) Try and solve without notes first!

Hierarchy of who to ask

1) Your brain

2) Your notes

3) Your partner (quiet whisper)

4) Ms. Kelly

INDEPENDENT PRACTICE!

EXIT TICKET (7 MIN)

A train accelerates from a velocity of 4

m/s to 27 m/s in 13 seconds. How far

did the train travel in the given time?

SHOW ALL WORK FOLLOWING THE GUESS METHOD.

EXIT TICKET (7 MIN)

A train accelerates from a velocity of 4

m/s to 27 m/s in 13 seconds. How far

did the train travel in the given time?

Δd = 201.57 m

*No G.U.E.S.S, no credit!