Lesson 11 4.4

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Slide 1: Tekstslide
Natuurkunde / ScheikundeMiddelbare schoolhavo, vwoLeerjaar 2

In deze les zitten 24 slides, met tekstslides en 4 videos.

Onderdelen in deze les

Slide 1 - Tekstslide

This lesson
  • rearranging the formula for acceleration
  • speed-time graphs

Slide 2 - Tekstslide

Learning goals 4.4
  • Rearrange the formula for acceleration
  • Read a speed-time graph correctly
  • Explain terminal velocity

Slide 3 - Tekstslide

Exercise
  • Write down the formula for speed.
  • What is the unit of speed?

  • Write down the formula for accelration
  • what is the unit of acceleration? Explain

Slide 4 - Tekstslide

v=td
Speed=timedistance
v: velocity 
d: distance
t: time

Slide 5 - Tekstslide

Unit of Speed
distance/time
m/s
m/s

Slide 6 - Tekstslide

a=tvfvi
acceleration=timefinalspeedstartingspeed

Slide 7 - Tekstslide

Unit of Acceleration
  • speed/time
  • (m/s)/s


m/s
2

Slide 8 - Tekstslide

Exercise
Rearrange the formula for acceleration to calculate:
  • vf
  • vi
  • t
a=tvfvi

Slide 9 - Tekstslide

Discussing the homework
  •  Worksheet 4.4
  • Workbook exercises 4.4

Slide 10 - Tekstslide

Speed-time graphs

Slide 11 - Tekstslide

Speed-time graphs

Slide 12 - Tekstslide

Speed-time graphs

Slide 13 - Tekstslide

The area under the graph

Slide 14 - Tekstslide

Terminal velocity

Slide 15 - Tekstslide

Slide 16 - Video

Slide 17 - Tekstslide

  • A car accelerates at a rate of 13m/s2 for 6 seconds, it reaches a speed of 128 km/h. Calculate its initial speed.

  • A rocket launching  accelerates from rest a rate of 1.5 km/s2 for 8 seconds. Calculate the speed it reaches.

  • A cyclist in the decelerates from 22 m/s to a speed of 37 m/s at a rate of 7,5 m/s2. Calculate the time this took.

Slide 18 - Tekstslide

Calculate the distance traveled in this journey

Slide 19 - Tekstslide

Learning goals 4.4
  • Rearrange the formula for acceleration
  • Read a speed-time graph correctly
  • Explain terminal velocity

Slide 20 - Tekstslide

Extra sources acceleration 

Slide 21 - Tekstslide

Slide 22 - Video

Slide 23 - Video

Slide 24 - Video