Do Now3

minutes!

Use the graph below to describe the relationship between initial velocity and braking distance.

Achieve 3000: Level Set Assessment

Agenda

•Do Now 5

• Achieve 3000 5

• Physics Talk 10

• Reflecting 5

•WDYTN? 20

Objectives 1-5We are learning…Braking distance is dependent on

the negative acceleration of the vehicle and reaction time (d = v2 / 2a)

We will be successful when we can…Plan and carry out an experiment

to relate braking distance to initial speed

Determine braking distance

Examine accelerated motion

Homework :D1.

Study for Quiz 1-5Wednesday

October 21st

2.

Quiz 1-4 CorrectionsThursday

October 22nd

3.

WDYTN 1-1 RevisionsFriday

October 23rd

4.

Achieve 3000(Age of Revolution)

FridayOctober 23rd

TU

RN

IT

IN

Physics to Go 1-5

Braking DistanceProblem #5 A skateboarder has an initial velocity of 2 m/s and can brake within 10 m.

If initial velocity is…

Braking distance will be…

New initial velocity

New braking distance

2 m/s 10 m

Doubled (x2) Quadrupled (x4) 4 m/s 40 m

Tripled (x3)      

Quadrupled (x4)

     

Halved (÷½)      

Quartered (÷¼)

     

Reflecting (page 87)5

minutes!

WDYTN? 1-5

Braking distanceDefinitionDepends on initial speed (definition)If initial speed…then braking distance…

+ / - acceleration direction & change in speedStopping distance = braking distance + reaction

distance

What factors must you consider to determine if you will be able to stop in the distance between

you and the animal to avoid hitting it?

15minute

s!