KWIZL: ET_Y2_4.1
1 / 12
Slide 1: Tekstslide
ScienceMiddelbare schoolhavo, vwoLeerjaar 2

In deze les zitten 12 slides, met interactieve quizzen en tekstslides.

time-iconLesduur is: 90 min

Onderdelen in deze les

KWIZL: ET_Y2_4.1

Slide 1 - Tekstslide

§4.2 Speed

p. 162-165
ex 12-21 p 166-171

Slide 2 - Tekstslide

§4.2 - Learning Goals:
  • I can describe the concept of speed and understand which measurements and units are necessary to calculate it.
  • I can calculate the speed (or distance or time) of an object using the speed formula.
  • I can convert speed between the units of m/s and km/h.   
  • I can create and interpret s,t-diagrams relating to an object’s motion. 


Slide 3 - Tekstslide

§4.2 - Keywords:
  • Speed
  • s,t-diagram


Slide 4 - Tekstslide

The speed (velocity) of an object tells us how far something moves in a given amount of time. It is calculated with this formula:

Slide 5 - Tekstslide

Calculating time & distance:
If you know the speed (v) you can also calculate the time (t) or distance (s) with these formulas

  • s = v ᐧ t (distance = speed * time)

  • t = s/v (time = distance/speed)


Slide 6 - Tekstslide

calculated in m/s or km/h.

make sure that your measurements are either: 
meters and seconds
kilometers and hours


Slide 7 - Tekstslide

Converting units:
It is often useful to convert from m/s ↔ km/h
This can be done by either multiplying or dividing by 3.6


Slide 8 - Tekstslide

Tom rides his bike to school. Look at the graph from point A until he arrives at school.
What is his average speed in km/h?
And in m/s?

Slide 9 - Open vraag

A sprinter runs a 200 m race with a speed of 9.3 m/s. How long did it take her?

Slide 10 - Open vraag

Graphing changes in motion:
A graph is an easy way to show an objects changing motion over time. Take a look at the example below:


Slide 11 - Tekstslide

Hw for lesson 2:
  • Complete exercises 12-21 of §4.2 pages 166-171
  • Read §4.3 pages 172-175
  • Study the glossaries of §4.1-§4.3 on Studygo.

  • Entry ticket §4.1 & §4.2
  • hw check exercises: §4.1, §4.2 & forces worksheet (3 stickers)

Slide 12 - Tekstslide