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Oct. 23, 2012 AGENDA: 1 – Bell Ringer 2 – Velocity Time Graphs 3 – Review of Quiz 2 Today’s Goal: Students will be able to construct velocity vs. time graphs & explain that acceleration is the change in velocity over time. Homework 1. Pages 7-8

CHAMPS for Bell Ringer C – Conversation – No Talking H – Help – RAISE HAND for questions A – 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!

Tuesday, Oct. 23rd (p. 15) Objective: Students will be able to construct velocity vs. time graphs & explain that acceleration is the change in velocity over time. Bell Ringer: 1. When you are stopped what is your velocity? 2. When your acceleration is positive describe what is happening to your velocity. 3. When your acceleration is negative describe what is happening to your velocity.

4 MINUTES REMAINING…

Tuesday, Oct. 23rd (p. 15) Objective: Students will be able to construct velocity vs. time graphs & explain that acceleration is the change in velocity over time. Bell Ringer: 1. When you are stopped what is your velocity? 2. When your acceleration is positive describe what is happening to your velocity. 3. When your acceleration is negative describe what is happening to your velocity.

3 MINUTES REMAINING…

Tuesday, Oct. 23rd (p. 15) Objective: Students will be able to construct velocity vs. time graphs & explain that acceleration is the change in velocity over time. Bell Ringer: 1. When you are stopped what is your velocity? 2. When your acceleration is positive describe what is happening to your velocity. 3. When your acceleration is negative describe what is happening to your velocity.

2 MINUTES REMAINING…

Tuesday, Oct. 23rd (p. 15) Objective: Students will be able to construct velocity vs. time graphs & explain that acceleration is the change in velocity over time. Bell Ringer: 1. When you are stopped what is your velocity? 2. When your acceleration is positive describe what is happening to your velocity. 3. When your acceleration is negative describe what is happening to your velocity.

1minute Remaining…

Tuesday, Oct. 23rd (p. 15) Objective: Students will be able to construct velocity vs. time graphs & explain that acceleration is the change in velocity over time. Bell Ringer: 1. When you are stopped what is your velocity? 2. When your acceleration is positive describe what is happening to your velocity. 3. When your acceleration is negative describe what is happening to your velocity.

30 Seconds Remaining…

Tuesday, Oct. 23rd (p. 15) Objective: Students will be able to construct velocity vs. time graphs & explain that acceleration is the change in velocity over time. Bell Ringer: 1. When you are stopped what is your velocity? 2. When your acceleration is positive describe what is happening to your velocity. 3. When your acceleration is negative describe what is happening to your velocity.

BELL- RINGER TIME IS UP!

Tuesday, Oct. 23rd (p. 15) Objective: Students will be able to construct velocity vs. time graphs & explain that acceleration is the change in velocity over time. Bell Ringer: 1. When you are stopped what is your velocity? 2. When your acceleration is positive describe what is happening to your velocity. 3. When your acceleration is negative describe what is happening to your velocity.

Shout Outs Period 5 – Christopher Jordan Period 7 – Deon Burgess

Oct. 23, 2012 AGENDA: 1 – Bell Ringer 2 – Velocity Time Graphs 3 – Review of Quiz 2 Today’s Goal: Students will be able to construct velocity vs. time graphs & explain that acceleration is the change in velocity over time. Homework 1. Pages 7-8

Week 7 Weekly Agenda Monday – Review & Quiz 3 Tuesday – Velocity Time Graphs Wednesday – Metric System Thursday – Metric System Lab Friday – Quiz 4 Unit Test in 2 weeks!

CHAMPS for Problems p. 5-8 C – Conversation – No Talking unless directed to work in groups H – Help – RAISE HAND for questions A – Activity – Solve Problems on Page 5-8 M – Materials and Movement – Pen/Pencil, Packet Pages 5-8 P – Participation – Complete Page 5-8 S – Success – Understand all Problems

Velocity Time Graphs (p. 5) Write in A, B, C, D A BC D

Velocity Time Graphs (p. 5)

ii. What is the distance / displacement covered in the first 5 seconds?

Velocity Time Graphs (p. 5) ii. What is the distance / displacement covered in the first 5 seconds? Distance / displacement is area under the curve!

Velocity Time Graphs (p. 5) ii. What is the distance / displacement covered in the first 5 seconds? Distance / displacement is area under the curve!

Velocity Time Graphs (p. 5) ii. What is the distance / displacement covered in the first 5 seconds? Area = base * height / 2 = (5 s)(10 m/s)/2 = 25 m Distance / displacement is area under the curve!

Velocity Time Graphs (p. 5) iii. What is the acceleration during this time? a = (vf – vi) Δt Acceleration is the slope a = (vf – vi)/ Δt (0s, 0 m/s) (5s, 10 m/s)

Velocity Time Graphs (p. 5) iii. What is the acceleration during this time? a = (vf – vi) = (10 m/s – 0 m/s) = 2 m/s 2 Δt 5 – 0 s Acceleration is the slope (0s, 0 m/s) (5s, 10 m/s)

Velocity Time Graphs (p. 5)

Velocity Time Graphs (p. 6) 1. What is the acceleration between t = 0s and t = 2s?

Velocity Time Graphs (p. 6) 1.What is the acceleration between t = 0s and t = 2s? a = (vf – vi) = (1 m/s – 0 m/s) = 1/2 m/s 2 Δt 2 – 0 s

Velocity Time Graphs (p. 6) 2. What is the acceleration between t = 2s and t = 4s?

Velocity Time Graphs (p. 6) 2. What is the acceleration between t = 2s and t = 4s? a = (vf – vi) = (3 m/s – 1 m/s) = 2 m/s 2 Δt 4 – 2 s

Velocity Time Graphs (p. 6) 3. What is the acceleration between t = 4s and t = 5s?

Velocity Time Graphs (p. 6) 4. What is the acceleration between t = 5s and t = 6s?

Velocity Time Graphs (p. 6) 5. Is the velocity increasing or decreasing? 6. Is the acceleration positive or negative? 7. Is the acceleration increasing or decreasing?

Velocity Time Graphs (p. 6) 5. Is the velocity increasing or decreasing? Increasing 6. Is the acceleration positive or negative? Positive 7. Is the acceleration increasing or decreasing? Increasing

Quiz Review (p. 4) Step 1: Read the Problem, underline key quantities Step 2: Assign key quantities a variable Step 3: Identify the missing variable Step 4: Choose the pertinent equation: Step 5: Solve for the missing variable. Step 6: Substitute and solve.

Quiz Review (p. 4) 5. If a ball rolls down a ramp with a starting velocity of 0 m/s and a final velocity of 6 m/s and it takes a total of 1.4 seconds, what is the acceleration?

Quiz Review (p. 4) 5. If a ball rolls down a ramp with a starting velocity of 0m/s and a final velocity of 6m/s and it takes a total of 1.4 seconds, what is the acceleration? Step 1: Read the Problem, underline key quantities

Quiz Review (p. 4) 5. If a ball rolls down a ramp with a starting velocity of 0m/s and a final velocity of 6m/s and it takes a total of 1.4 seconds, what is the acceleration? Step 1: Read the Problem, underline key quantities

Quiz Review (p. 4) 5. If a ball rolls down a ramp with a starting velocity of 0m/s and a final velocity of 6m/s and it takes a total of 1.4 seconds, what is the acceleration? Step 2: Assign key quantities a variable

Solving Kinematics Problems 5. If a ball rolls down a ramp with a starting velocity of 0m/s and a final velocity of 6m/s and it takes a total of 1.4 seconds, what is the acceleration? Step 2: Assign key quantities a variable vf = 6 m/s vi = 0 m/s Δt = 1.4 s

Quiz Review (p. 4) 5. If a ball rolls down a ramp with a starting velocity of 0m/s and a final velocity of 6m/s and it takes a total of 1.4 seconds, what is the acceleration? Step 3: Identify the missing variable vf = 6 m/s vi = 0 m/s Δt = 1.4 s

Quiz Review (p. 4) 5. If a ball rolls down a ramp with a starting velocity of 0m/s and a final velocity of 6m/s and it takes a total of 1.4 seconds, what is the acceleration? Step 3: Identify the missing variable vf = 6 m/s vi = 0 m/s Δt = 1.4 s a = ?

Quiz Review (p. 4) 5. If a ball rolls down a ramp with a starting velocity of 0m/s and a final velocity of 6m/s and it takes a total of 1.4 seconds, what is the acceleration? Step 4: Choose the pertinent equation: vf = 6 m/s vi = 0 m/s Δt = 1.4 s a = ? Δx = xf – xiv = Δx/Δt a = (vf – vi)/Δt

Quiz Review (p. 4) 5. If a ball rolls down a ramp with a starting velocity of 0m/s and a final velocity of 6m/s and it takes a total of 1.4 seconds, what is the acceleration? Step 4: Choose the pertinent equation: vf = 6 m/s vi = 0 m/s Δt = 1.4 s a = ? Δx = xf – xiv = Δx/Δt a = (vf – vi)/Δt

Quiz Review (p. 4) 5. If a ball rolls down a ramp with a starting velocity of 0m/s and a final velocity of 6m/s and it takes a total of 1.4 seconds, what is the acceleration? Step 5: Solve for the missing variable vf = 6 m/s vi = 0 m/s Δt = 1.4 s a = ? a = (vf – vi)/Δt

Quiz Review (p. 4) 5. If a ball rolls down a ramp with a starting velocity of 0m/s and a final velocity of 6m/s and it takes a total of 1.4 seconds, what is the acceleration? Step 6: Substitute and solve. vf = 6 m/s vi = 0 m/s Δt = 1.4 s a = ? a = (vf – vi)/Δt = (6 m/s – 0 m/s)/1.4 s = 4.29 m/s 2

Solving Kinematics Problems Step 1: Read the Problem, underline key quantities Step 2: Assign key quantities a variable Step 3: Identify the missing variable Step 4: Choose the pertinent equation: Step 5: Solve for the missing variable. Step 6: Substitute and solve.

Quiz Review (p. 6) 6. Brittany is driving her car and takes off from a stop light with an acceleration of 5m/s 2 and maintains a constant acceleration until her final velocity is 25m/s. How long did it take?

Quiz Review (p. 4) 6. Brittany is driving her car and takes off from a stop light with an acceleration of 5m/s 2 and maintains a constant acceleration until her final velocity is 25m/s. How long did it take? Step 1: Read the Problem, underline key quantities

Quiz Review (p. 4) 6. Brittany is driving her car and takes off from a stop light with an acceleration of 5m/s 2 and maintains a constant acceleration until her final velocity is 25m/s. How long did it take? Step 1: Read the Problem, underline key quantities

Quiz Review (p. 4) 6. Brittany is driving her car and takes off from a stop light with an acceleration of 5m/s 2 and maintains a constant acceleration until her final velocity is 25m/s. How long did it take? Step 2: Assign key quantities a variable

Quiz Review (p. 4) 6. Brittany is driving her car and takes off from a stop light with an acceleration of 5m/s 2 and maintains a constant acceleration until her final velocity is 25m/s. How long did it take? Step 2: Assign key quantities a variable a = 5 m/s 2 vf = 25 m/s vi = 0 m/s

Quiz Review (p. 6) 6. Brittany is driving her car and takes off from a stop light with an acceleration of 5m/s 2 and maintains a constant acceleration until her final velocity is 25m/s. How long did it take? Step 2: Assign key quantities a variable a = 5 m/s 2 vf = 25 m/s vi = 0 m/s

Quiz Review (p. 4) 6. Brittany is driving her car and takes off from a stop light with an acceleration of 5m/s 2 and maintains a constant acceleration until her final velocity is 25m/s. How long did it take? Step 3: Identify the missing variable a = 5 m/s 2 vf = 25 m/s vi = 0 m/s

Quiz Review (p. 4) 6. Brittany is driving her car and takes off from a stop light with an acceleration of 5m/s 2 and maintains a constant acceleration until her final velocity is 25m/s. How long did it take? Step 3: Identify the missing variable a = 5 m/s 2 vf = 25 m/s vi = 0 m/s Δt = ?

Quiz Review (p. 4) 6. Brittany is driving her car and takes off from a stop light with an acceleration of 5m/s 2 and maintains a constant acceleration until her final velocity is 25m/s. How long did it take? Step 4: Choose the pertinent equation a = 5 m/s 2 vf = 25 m/s vi = 0 m/s Δt = ? Δx = xf – xiv = Δx/Δt a = (vf – vi)/Δt

Quiz Review (p. 4) 6. Brittany is driving her car and takes off from a stop light with an acceleration of 5m/s 2 and maintains a constant acceleration until her final velocity is 25m/s. How long did it take? Step 4: Choose the pertinent equation a = 5 m/s 2 vf = 25 m/s vi = 0 m/s Δt = ? Δx = xf – xiv = Δx/Δt a = (vf – vi)/Δt

Quiz Review (p. 4) 6. Brittany is driving her car and takes off from a stop light with an acceleration of 5m/s 2 and maintains a constant acceleration until her final velocity is 25m/s. How long did it take? Step 4: Choose the pertinent equation a = 5 m/s 2 vf = 25 m/s vi = 0 m/s Δt = ? Δx = xf – xiv = Δx/Δt a = (vf – vi)/Δt

Quiz Review (p. 4) 6. Brittany is driving her car and takes off from a stop light with an acceleration of 5m/s 2 and maintains a constant acceleration until her final velocity is 25m/s. How long did it take? Step 5: Solve for the missing variable. a = 5 m/s 2 vf = 25 m/s vi = 0 m/s Δt = ? Δx = xf – xiv = Δx/Δt a = (vf – vi)/Δt

Quiz Review (p. 4) 6. Brittany is driving her car and takes off from a stop light with an acceleration of 5m/s 2 and maintains a constant acceleration until her final velocity is 25m/s. How long did it take? Step 5: Solve for the missing variable. a = 5 m/s 2 vf = 25 m/s vi = 0 m/s Δt = ? a = (vf – vi)/Δt

Quiz Review (p. 4) 6. Brittany is driving her car and takes off from a stop light with an acceleration of 5m/s 2 and maintains a constant acceleration until her final velocity is 25m/s. How long did it take? Step 5: Solve for the missing variable. a = 5 m/s 2 vf = 25 m/s vi = 0 m/s Δt = ? Δt *a = Δt * (vf – vi) Δt

Quiz Review (p. 6) 2. Brittany is driving her car and takes off from a stop light with an acceleration of 5m/s 2 and maintains a constant acceleration until her final velocity is 25m/s. How long did it take? Step 5: Solve for the missing variable. a = 5 m/s 2 vf = 25 m/s vi = 0 m/s Δt = ? Δt *a = (vf – vi)

Quiz Review (p. 4) 6. Brittany is driving her car and takes off from a stop light with an acceleration of 5m/s 2 and maintains a constant acceleration until her final velocity is 25m/s. How long did it take? Step 5: Solve for the missing variable. a = 5 m/s 2 vf = 25 m/s vi = 0 m/s Δt = ? Δt *a = (vf – vi) a a

Quiz Review (p. 4) 6. Brittany is driving her car and takes off from a stop light with an acceleration of 5m/s 2 and maintains a constant acceleration until her final velocity is 25m/s. How long did it take? Step 5: Solve for the missing variable. a = 5 m/s 2 vf = 25 m/s vi = 0 m/s Δt = ? Δt = (vf – vi) a

Quiz Review (p. 4) 6. Brittany is driving her car and takes off from a stop light with an acceleration of 5m/s 2 and maintains a constant acceleration until her final velocity is 25m/s. How long did it take? Step 6: Substitute and solve. a = 5 m/s 2 vf = 25 m/s vi = 0 m/s Δt = ? Δt = (vf – vi) a

Quiz Review (p. 4) 6. Brittany is driving her car and takes off from a stop light with an acceleration of 5m/s 2 and maintains a constant acceleration until her final velocity is 25m/s. How long did it take? Step 6: Substitute and solve. a = 5 m/s 2 vf = 25 m/s vi = 0 m/s Δt = ? Δt = (vf – vi) = (25 – 0 m/s) = 5 s a 5 m/s 2

Solving Kinematics Problems Step 1: Read the Problem, underline key quantities Step 2: Assign key quantities a variable Step 3: Identify the missing variable Step 4: Choose the pertinent equation: Step 5: Solve for the missing variable. Step 6: Substitute and solve.

Quiz Review If the average velocity of a car is 20 km/hr, how far can it travel in 3 hrs? Show ALL of the steps we discussed in class Step 1: Read the Problem, underline key quantities

Quiz Review If the average velocity of a car is 20 km/hr, how far can it travel in 3 hrs? Show ALL of the steps we discussed in class Step 1: Read the Problem, underline key quantities

Quiz Review If the average velocity of a car is 20 km/hr, how far can it travel in 3 hrs? Show ALL of the steps we discussed in class Step 2: Assign key quantities a variable

Quiz Review If the average velocity of a car is 20 km/hr, how far can it travel in 3 hrs? Show ALL of the steps we discussed in class Step 2: Assign key quantities a variable v = 45 km / hr Δt = 3 hrs

Quiz Review If the average velocity of a car is 20 km/hr, how far can it travel in 3 hrs? Show ALL of the steps we discussed in class Step 2: Assign key quantities a variable v = 45 km / hr Δt = 3 hrs

Quiz Review If the average velocity of a car is 20 km/hr, how far can it travel in 3 hrs? Show ALL of the steps we discussed in class Step 3: Identify the missing variable v = 45 km / hr Δt = 3 hrs

Quiz Review If the average velocity of a car is 20 km/hr, how far can it travel in 3 hrs? Show ALL of the steps we discussed in class Step 3: Identify the missing variable v = 45 km / hr Δt = 3 hrs Δx = ?

Quiz Review If the average velocity of a car is 20 km/hr, how far can it travel in 3 hrs? Show ALL of the steps we discussed in class Step 4: Choose the pertinent equation: v = 45 km / hr Δt = 3 hrs Δx = ? Δx = xf – xiv = Δx/Δt a = (vf – vi)/Δt

Quiz Review If the average velocity of a car is 20 km/hr, how far can it travel in 3 hrs? Show ALL of the steps we discussed in class Step 4: Choose the pertinent equation: v = 45 km / hr Δt = 3 hrs Δx = ? Δx = xf – xiv = Δx/Δt a = (vf – vi)/Δt

Quiz Review If the average velocity of a car is 20 km/hr, how far can it travel in 3 hrs? Show ALL of the steps we discussed in class Step 5: Solve for the missing variable. v = 45 km / hr Δt = 3 hrs Δx = ? v = Δx/Δt

Quiz Review If the average velocity of a car is 20 km/hr, how far can it travel in 3 hrs? Show ALL of the steps we discussed in class Step 5: Solve for the missing variable. v = 45 km / hr Δt = 3 hrs Δx = ? Δt * v = Δx * Δt Δt

Quiz Review If the average velocity of a car is 20 km/hr, how far can it travel in 3 hrs? Show ALL of the steps we discussed in class Step 5: Solve for the missing variable. v = 45 km / hr Δt = 3 hrs Δx = ? Δt * v = Δx * Δt Δt

Quiz Review If the average velocity of a car is 20 km/hr, how far can it travel in 3 hrs? Show ALL of the steps we discussed in class Step 5: Solve for the missing variable. v = 45 km / hr Δt = 3 hrs Δx = ? Δt * v = Δx

Quiz Review If the average velocity of a car is 20 km/hr, how far can it travel in 3 hrs? Show ALL of the steps we discussed in class Step 6: Substitute and solve.. v = 45 km / hr Δt = 3 hrs Δx = ? Δx = Δt * v = (20 km/hr)(3 hr) = 60 km

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