TTO2 - unit 1 - motion

Which SI units did you find?
Type each unit separately.
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Slide 1: Carte mentale
NatuurkundeMiddelbare schoolvwoLeerjaar 2

Cette leçon contient 32 diapositives, avec quiz interactifs, diapositives de texte et 2 vidéos.

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Which SI units did you find?
Type each unit separately.

Slide 1 - Carte mentale

SI units
Make a table of the quantities and units
Add for each a column with their symbols.
Give an example in which kind of job or situation one could use these quantities.

Slide 2 - Diapositive

Homework
Tue: Read 1.1 and 1.2 
Fri: study 1.2 again

During the lessons we will work independantly.
I will give extra explanation to who doesn't understand yet.

Slide 3 - Diapositive

Name the most interesting job or situation in which you can use these (SI) quantities.

Slide 4 - Question ouverte

How do you measure speed?

Slide 5 - Question ouverte

When making a graph of the time it takes to go from home to school,
what labels do I put on the axis?
A
x-axis: speed v y-axis: time t
B
x-axis: distance d y-axis: time t
C
x-axis: time t y-axis: speed v
D
x-axis: time t y-axis: distance d

Slide 6 - Quiz

Distance-time graph
Now draw this graph in your notebook 
with distance in km on the y-axis
and time in min on the x-asis.
Draw the following:
On the first track I ride 3 km in 15 min at constant speed.
Then I need to wait at a traffic light for 5 min. 
Then I need to speed up and ride 3 km in 10 min. 

Slide 7 - Diapositive

Acceleration
Make a summary or mindmap
of chapter 1, not page 5 and 9
Use max 1 A4 page. 
Handin next lesson.
Choose of each page the most important concepts.

Slide 8 - Diapositive

I ride 3 km in 15 min,
what is my speed in SI units?

Slide 9 - Question ouverte

Problem Solving Technique
ROPEC
Read
Organise (data)
: given + asked
Plan (formula)
Execute (calculation)
Check (answer + units)

Slide 10 - Diapositive

Homework
Tue: Finish summary questions + workbook questions (1.1 +1.2)
Use problem solving technique for calculations.
WB 1.2 Q2: tip 1: use the words time, distance, increasing, decreasing; tip 2: per question say 3 things.
Read 1.3 - skip: extension
Fri: Study 1.3 and 1.4
Tue: Finish summary questions + workbook questions (1.3 + 1.4)
Read 1.5

Slide 11 - Diapositive

Today
Review subject matter (homework & test matter) and establish what still needs explanation

Slide 12 - Diapositive

Skill: creating a (v,t)-graph
from a (d,t)-graph.
Which step needs explanation?
A
Calculate the speed of each time interval using the formula v = d / t​
B
Draw the graph with ​ time t (s) on the x-axis​ speed v (m/s) on the y-axis​
C
Figure out which are you maximum values so you can adjust the scale
D
Draw the intervals as horizontal lines as the speed is constant

Slide 13 - Quiz

Skill: Reading graphs.
What needs explanation?
A
How are the axes labeled?
B
What is the scale on the axes?
C
What is the slope and shape of the graph?
D
Where does the graph start and end?

Slide 14 - Quiz

Which questions are there still about unit 1.3 and 1.4 (acceleration)

Slide 15 - Question ouverte

Which questions are there about unit 1.5 and 1.6

Slide 16 - Question ouverte

What are the main learning objectives of science up to now?

Slide 17 - Question ouverte

Learning objectives unit 1
- SI units
- Calculating speed using the problem solving procedure.
- Calculating acceleration using the p.s.p.
- Drawing a d,t-graph based on data given / measurements.
- Drawing a v,t-graph based on a d,t-graph.

Slide 18 - Diapositive

If we do a formative assessment on 24/9,
when shall we do the summative assessment?
A
Fri 4 October (after project days)
B
Tue 8 October
C
Fri 11 October (just before autumn holiday)
D
Fri 25 October (after autumn holiday)

Slide 19 - Quiz

Take a look at figure 1.4.1
Consider the motion of the object whose speed-time graph is given in the diagram by the blue line.
What can you say about the speed of the object?

Slide 20 - Question ouverte

Take a look at figure 1.4.1
Consider the motion of the object whose speed-time graph is given in the diagram with the red line.
What can you say about the speed between t=6 s and t=10 s?

Slide 21 - Question ouverte

Take a look at figure 1.4.2
Consider the motion of the object whose speed-time graph is given in the diagram with the red line.
What can you say about the speed between t=2 s and t=12 s?

Slide 22 - Question ouverte

Video slide

after this: Brian Cox visits the world's biggest vacuum
Free Fall of a Bowling Ball and a set of feathers.

Slide 23 - Diapositive

6

Slide 24 - Vidéo

00:25
What does vacuum mean?

Slide 25 - Question ouverte

01:27
Which object falls fastest
when air resistance
is significant (= plays a role)?
A
The feathers
B
The bowling ball
C
No difference in speed

Slide 26 - Quiz

02:28
What do we call
the force on any object near the Earth's surface?

Slide 27 - Question ouverte

03:00
Which object falls fastest
when air resistance
is NOT significant (= plays a role)?
A
The feathers
B
The bowling ball
C
No difference in speed

Slide 28 - Quiz

03:24
Why is there no difference in speed when the feathers and bowling ball fall now?

Slide 29 - Carte mentale

04:41
According to Newton: a freely falling object has a constant acceleration.
A
TRUE
B
FALSE
C
IDK

Slide 30 - Quiz

The acceleration of a freely falling object near the Earth
is 10 m/s . It took 15 s for the objects to fall.
a) Calculate the speed with which they hit the bottom.
b) Calculate the height from which they fell.
Tip: Use the average speed.
2

Slide 31 - Question ouverte

Slide 32 - Vidéo