Nov. 7th
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Transcript of Nov. 7th
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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
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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!
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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?
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4 MINUTES REMAINING…
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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?
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3 MINUTES REMAINING…
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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?
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2 MINUTES REMAINING…
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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?
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1minute Remaining…
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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?
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30 Seconds Remaining…
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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?
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BELL-RINGER TIME IS
UP!
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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?
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Shout OutsPeriod 5 –Period 7 –
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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
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Week 9Weekly AgendaMonday –Tuesday – Wednesday –Thursday – Friday –
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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
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Free Fall
When you are in free fall:
Is your velocity changing?
Are you accelerating?
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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
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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.
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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.
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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.
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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.
vi = 0 m/sΔx = -8.52 mΔt = ?a = -9.81 m/s2
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Notes: Kinematic Equations
The Four Kinematic Equations:vf = vi + aΔt
Δx = viΔt + aΔt2
2vf
2 = vi2 + 2aΔx
Δx = (vf + vi)Δt 2
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Notes: Kinematic Equations
The Four Kinematic Equations:vf = vi + aΔt
Δx = viΔt + aΔt2
2vf
2 = vi2 + 2aΔx
Δx = (vf + vi)Δt 2
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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.
vi = 0 m/sΔx = -8.52 mΔt = ?a = -9.81 m/s2
Δx = viΔt + aΔt2
2
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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.
vi = 0 m/sΔx = -8.52 mΔt = ?a = -9.81 m/s2
Δx = viΔt + aΔt2 2
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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.
vi = 0 m/s Δx = viΔt + aΔt2 2
-8.52 = -9.81Δt2
2
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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.
vi = 0 m/s Δx = viΔt + aΔt2 2
-8.52 = -9.81Δt2
2-8.52 = -4.95Δt2
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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.
vi = 0 m/s Δx = viΔt + aΔt2 2
-8.52 = -9.81Δt2
2-8.52 = -4.95Δt2
1.72 = Δt2
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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.
vi = 0 m/s Δx = viΔt + aΔt2 2
-8.52 = -9.81Δt2
2-8.52 = -4.95Δt2
1.72 = Δt2
1.32 s = Δt
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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.