Ex. 135

We calculate the current(with the multimeter) and resistance (R= V/I)

V              I(A)            R

0. 0                    0. 0                     0. 0

0. 5                    0. 8                     0. 63

1. 0                    0. 10                 10. 00

1. 5                    0. 12                 12. 50

2. 0                    0. 14                 14. 29

2. 5                    0. 16                 15. 63

3. 0                    0. 18                 16. 67

3. 5                    0. 19                 18. 42

ex 134

We create a mixed circuit, later with the digital multi-meter we calculate the voltage

Vsource(V):4.5
VB1      (V):1.7
VB2      (V):1,1
VB3      (V):1,7

Ex. 133

We create a parallel circuit and with the digital multi-meter we calculate the voltage 

Vsource (V) 4.5
VB1       (V) 1.65
VB2       (V)1.35
VB1       (V)1.5

ex. 132

We create a serie circuit and with the digital multi-meter we calculate the voltage.

Vsource (V) : 3.9
V B1     (V) : 1.35
VB2      (V) : 1.3
VB3     (V) : 1.21

Parallel and series circuit

Parallel Circuit :  Circuit with more than one path for electron to travel

Series Circuit : Circuit with only one path for electrons to travel

Technology 2nd ESO A Joaquim Bau

This is our video of the robot's project,

Ex. 161 page.90

The parts of the robots are :

Ultrasonic sensor that it detects the objects.

Touch sensor that when it detect an object it push on

Led sensor that detects the intensity of the light a light to

Sound sensor that is from here noise it’s got two motors: one is connected in the port B and other is connect in the Port C .

See we program the robots that wearing the light sensor detects a black line , the robot go to back because they it can go under the Sonics and when it’s detect an object, it has to push it and when it’s here, it rotate to than others objects than it has to push then, we have to program to do a single pass one of the robot has to pull the others out and when it pushed out it winds up come of the most important problem is the light we can power the robot out because the light of the sun is different that the light of the classroom because we need the light to detect. This line and the line and the other problem is that before we miss it this piece of the robot that is very important.

My carbon footprint is 85%

With www.footprint.wwf.org.uk I make my carbon footprint, when I saw it I was surprised because I thought my percentage would be higher.

         
                       

                                   
 

Page 89 ex.159

  

With the same previous app I create ex.159

Page 89 ex 158

With the same previous app I create ex.158 : LEGO-Touch sensor

I use the touch sensor to dectect an object, program the robot to avoid  the impact






                                         

Page 89 Exersice 157

With LEGO MINDSTROMS NXT  i doing ex. 157 :  LEGO-Ultrasonic sensor

If an object is detected 20 cm start to move 2 seconds.



                                  

6/03/2018

This is the page 89 exercise 156