Lesson 6 — 4.4 acceleration & speed-time graphs

Lessonplan
Notes
Topic: 4.4 acceleration and speed time graph
Speed is a change of distance over time.
acceleration is a change of speed over time.

Speed is how fast something moves
looked at formally it becomes — a change of distance over time.
Acceleration is about something speeding up.
Looked at formally it becomes — a change in speed over time.

openen
huiswerk bespreken
4.4
Working on exercises

2 lessons.
Lesson 1: 
Learning goals
  • calculating acceleration
  • Rearranging the formula for acceleration
  • the unit of acceleration
  • reading a speet-time graph
  • Terminal velocity
1 / 26
volgende
Slide 1: Tekstslide
Natuurkunde / ScheikundeMiddelbare schoolhavoLeerjaar 1

In deze les zitten 26 slides, met tekstslides.

Onderdelen in deze les

Lessonplan
Notes
Topic: 4.4 acceleration and speed time graph
Speed is a change of distance over time.
acceleration is a change of speed over time.

Speed is how fast something moves
looked at formally it becomes — a change of distance over time.
Acceleration is about something speeding up.
Looked at formally it becomes — a change in speed over time.

openen
huiswerk bespreken
4.4
Working on exercises

2 lessons.
Lesson 1: 
Learning goals
  • calculating acceleration
  • Rearranging the formula for acceleration
  • the unit of acceleration
  • reading a speet-time graph
  • Terminal velocity

Slide 1 - Tekstslide

Slide 2 - Tekstslide

This lesson
4.4 Acceleration & speed-time graphs


Slide 3 - Tekstslide

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

Slide 4 - Tekstslide

What is
Acceleration?

Slide 5 - Tekstslide

Slide 6 - Tekstslide

Speed
    • A change in distance  over time


    Acceleration
    • A change in speed over time 

      Slide 7 - Tekstslide

      Speed



        Acceleration
        • A change in speed over time 
          speed=timedistance

          Slide 8 - Tekstslide

          Speed



            Acceleration
              speed=timedistance
              acceleration=timechangeinspeed

              Slide 9 - Tekstslide

              Acceleration
                acceleration=timechangeinspeed

                Slide 10 - Tekstslide

                acceleration=timefinalspeedstartingspeed

                Slide 11 - Tekstslide

                a=tvfvi=tΔv
                acceleration=timefinalspeedstartingspeed
                ( change) in speed) 

                Slide 12 - Tekstslide

                a=tvfvi
                acceleration=timefinalspeedstartingspeed
                • a: acceleration
                • vf: final speed
                • vi: initial speed
                • t: time

                Slide 13 - Tekstslide

                The unit of acceleration
                m/s
                2

                Slide 14 - Tekstslide


                Why is the unit of 

                acceleration m/s ? 
                2

                Slide 15 - Tekstslide

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

                Slide 16 - Tekstslide

                Unit of speed
                Unit of Acceleration
                • distance/time
                •  m/s
                • speed/time
                •  m/s
                2

                Slide 17 - Tekstslide

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


                m/s
                2

                Slide 18 - Tekstslide

                Exercise
                1)
                A car pulls up from standing still up to a speed of 22.4 m/s in 2.55s. Calculate its acceleration.
                Answer: 8,78 m/s2 
                2)
                A roller coaster picks up speed as it rolls down the track. Starting with a speed of 4 m/s it accelerates to 22 m/s in three seconds. Calculate its acceleration. Answer 6 m/s2

                3)
                why is the unit of acceleration m/s2?

                Slide 19 - Tekstslide

                Exercise

                Maurice cycles at a speed of 5m/s. Over a period of 6 seconds he accelerates to a speed of 8/ms. Calculate his acceleration. Answer 0,5 m/s2

                Slide 20 - Tekstslide

                a=tvfvi
                acceleration=timefinalspeedstartingspeed
                The formula for acceleration

                Slide 21 - Tekstslide

                The unit of acceleration
                m/s
                2

                Slide 22 - Tekstslide

                Acceleration
                  acceleration=timefinalspeedstartingspeed
                  Exercise
                  A race car accelerates from 18.5 m/s to 46.1 m/s in 2.47 seconds. Calculate its change in speed. Answer 11,17 m/s2

                  Slide 23 - Tekstslide

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

                  Slide 24 - Tekstslide

                  Homework
                  Make worksheet 4.4


                  Slide 25 - Tekstslide

                  Slide 26 - Tekstslide