Nov. 7th

Nov. 7thAGENDA:1 – Bell Ringer2 – Free Fall

Acceleration3 – Exit Ticket

Today’s Goal:Students will be able to explain how free fall acceleration occurs.

Homework

CHAMPS for Bell RingerC – Conversation – No Talking H – Help – RAISE HAND for questionsA – Activity – Solve Bell Ringer on

binder paper. Homework out on desk

M – Materials and Movement – Pen/Pencil, Notebook or Paper

P – Participation – Be in assigned seats, work silently

S – Success – Get a stamp! I will collect!

Nov. 7thObjective: Students will be able to explain how free fall acceleration occurs.

Bell Ringer:1. What do you think

accelerates downwards faster when you drop it: a feather or a hammer? Explain why you think so.

2. Are there any situations in which you would think the opposite happens?

4 MINUTES REMAINING…

1minute Remaining…

30 Seconds Remaining…

BELL-RINGER TIME IS

UP!

Shout OutsPeriod 5 –Period 7 –

Nov. 7thAGENDA:1 – Bell Ringer2 – Free Fall

Acceleration3 – Exit Ticket

Today’s Goal:Students will be able to explain how free fall acceleration occurs.

Homework

Week 9Weekly AgendaMonday –Tuesday – Wednesday –Thursday – Friday –

CHAMPS for 11/7C – Conversation – No Talking unless

directed to work in groupsH – Help – RAISE HAND for questionsA – Activity – Solve Problems on Page

5-8M – Materials and Movement –

Pen/Pencil, Packet Pages 5-8P – Participation – Complete Page 5-8S – Success – Understand all

Problems

Free Fall

When you are in free fall:

Is your velocity changing?

Are you accelerating?

Free Fall

When you are in free fall:

Is your velocity changing?

Are you accelerating?

All objects on earth accelerate downward at -9.81 m/s2

Example

Theodore drops a pile of roof shingles from the top of a roof located 8.52 meters above the ground. Determine the time required for the shingles to reach the ground.

Example


vi = 0 m/sΔx = -8.52 mΔt = ?a = -9.81 m/s2

Notes: Kinematic Equations

The Four Kinematic Equations:vf = vi + aΔt

Δx = viΔt + aΔt2

2vf

2 = vi2 + 2aΔx

Δx = (vf + vi)Δt 2

Example


vi = 0 m/sΔx = -8.52 mΔt = ?a = -9.81 m/s2

Δx = viΔt + aΔt2

2

Example


vi = 0 m/sΔx = -8.52 mΔt = ?a = -9.81 m/s2

Δx = viΔt + aΔt2 2

Example


vi = 0 m/s Δx = viΔt + aΔt2 2

-8.52 = -9.81Δt2

2

Example



-8.52 = -9.81Δt2

2-8.52 = -4.95Δt2

Example



-8.52 = -9.81Δt2

2-8.52 = -4.95Δt2

1.72 = Δt2

Example



-8.52 = -9.81Δt2

2-8.52 = -4.95Δt2

1.72 = Δt2

1.32 s = Δt

Example

Rex Things throws his mother's crystal vase vertically upwards with an initial velocity of 26.2 m/s. Determine the height to which the vase will rise above its initial height.

Nov. 7th

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