01 MOTION: ARE YOU MOVING?

REACTIVATE

1. What do you understand with the word “motion”?
2. What are some motions of your environment?
3. How do we know when a body is in repose or in motion?
4. Do you know something that doesn’t move?
5. How do we describe the motion of objects?
6. What would happen if there wasn’t motion?

Physical problems

What motion do you make in the morning?
What is your favorite movement in soccer?
What is your favorite motion in jazz or dance?

WHAT IS MOTION?

Motion: Change in an object’s position from an original position to a final position over the time.

Motion is anything that occurs in two physical positions.
Motion takes place in two of the physic’s consecutive instants in time.
Motion is whatever unifies space and time because it can never take place without the two.

10 interesting facts about motion:

If there is no motion. There is no life.
What things can happen in 0.4 seconds?
*A mosqutio move its wings 200 times.
*The high frecuency radio waves (VHF) oscillates 40 million times.
*A train can advance 13 meters.
*A comercial airplane travels near 90 meters.
*Sound travels 136 meters.
*Earth travels 12 kilometer in its orbit around the sun.
*Light travels 120 000 km


The importance and limits of our senses


REACTIVATE
How do you recognize if something is moving or not?
What senses do we use to percieve the bus motion? Describe the experience using each sense.
Do all people percieve motion in the same way than you. Why?


There are many things in nature that we don´t percieve until they move.

*Some chameleon species are able to change their skin colors.
Different chameleon species are able to change different colors which can include pink, blue, red, orange, green, black, brown, light blue, yellow, turquoise and purple

*Hummingbirds are birds that comprise the family Trochilidae. They are among the smallest of birds, most species measuring in the 7.5–13 cm (3–5 in) range. Indeed, the smallest extant bird species is a hummingbird, the 5-cm Bee Hummingbird.
They can hover in mid-air by rapidly flapping their wings 12–90 times per second (depending on the species). They are also the only group of birds able to fly backwards.
Their English name derives from the characteristic hum made by their rapid wing beats. They can fly at speeds exceeding 15 m/s (54 km/h, 34 mi/h).

II. Prepare for your weely quiz.


III. Win 1 or 2 points explaining what follows.



CONCEPTOS IMPORTANTES EN ESPAÑOL:

*La cinemática, que estudia el movimiento de los cuerpos, es una de las ramas más fascinantes de la Física.

*La vista nos permite percibir el movimiento de un avión que se encuentra a una distancia lejana con respecto al lugar en que nos encontramos porque cambia de lugar.

*En un día lluvioso, a través de nuestros sentidos, podemos percibir el movimiento de las hojas de los árboles, las nubes, los pájaros, el correr del agua sobre el suelo, la luz y el sonido del viento; es decir, cuando cambian los cuerpos de lugar en un determinado lapso de tiempo.

MECÁNICA: Rama de la Física que estudia lo referente al movimiento de los cuerpos.

MOVIMIENTO: Es el cambio de posición de un cuerpo en el tiempo.

*A pesar de que no podemos ver el aire, apreciamos sus efectos cuando se mueve en forma de viento