EXERCISE 84

Ultrasonic sensor

Program a robot that works as follow:

If an object is detected (less than 20cm), the motors start to move during 2 seconds.

EXERCISE 83

In this exercise, the robot has to:
- Starts moving after a countdown of 5 seconds
- If an object is detected at less than 20cm, the robot will stops.
- It turns to avoid the contact with the object.
 - It continues straight on after.

PARALLEL CIRCUIT

The parallel circuits have the same voltage. The total intensity (current) is the sum of the currents through the individual components. We can find the intensity according to the Ohm's law. To find the resistance sum all the resistances.

SERIES CIRCUIT

Last day, we have done a series circuit.
Firts we connected all thhe positives and then all the negatives. We connected to the battery and the bulbs started lightning.
We had a problem, one bulb didn't work so we had to change, because if one bulb doesn't work the other bulbs neither.
In a series circuit the intensity is the same.

Final result

Hi! This is the result of the project. We hope that it will work.

We had some problems, like the motor doesn't sticks, or the plataform doesn't stand up right, so we put 2 hinges and glue. We didn't put solar panels beacuse we haven't much time, and we put a switch to connect to the electricity.

Carbon Footprint

Last day, we did a test to know our carbon footprint.

These were my results:

The carbon footprint is divided into 4 cathegories: food, home, travel, stuff.
Acording to my results, I need less than one planet to have a healthy life.

More steps about my project

Hi!
The last 2 classes, we were makin the top of the windmill with a CD.
Here are some photos with the steps.

We cut the Cd with 6 parts.

Then, with a light, we switch on the candle.

We burnt a little part of the CD for that took shape.

                                                        

The next day, we panted the CD with white painting.

We put the engine and in the next classes, we will connect with the stack.