Martes, Agosto 6, 2013

Walking Speed

Walking Speed
Speed is a scalar quantity that represents the distance traveled by an object in a given unit of time.
In kinematic, the speed of an object is the magnitude of its velocity (the rate of change of its position); it is thus a scalar quantity.
were v, is velocity d, is distance and t, is time.
At first knowing your speed was difficult, because you can't easily solve it when you don't do it step by step.
So here are some steps to know your walking speed:
Step1. measure a distance of 10 meters using meter stick or tape measure.
Step2.get a stopwatch to know how many seconds you gonna get when you walk a distance of 10 meters.
Step3.do it again about five times.(or you can call it 5 trials).
Step4. make a of data.

Example:
     Trails           Time          Distance          Speed
        1
        2
        3
        4
        5

Use the solution above:
So to get the average add all of it and divide it by 5.
And there you go u have the answer already. Cool isn't it.
At first its really hard to get the answer if you don't do it step by step. But you can learned many things about it any way.

Lunes, Agosto 5, 2013

Clinometer

The clinometer is an optical device for measuring elevation angles above horizontal. The most common instruments of this type currently used are compass-clinometers from Suunto or Silva. 



Making a  clinometer is very east. The material you just going to used are: protractor, tape, drinking straw, tread, and a 5-cent coin.
On July 8 were having an activity and our activity was all about measuring the angle of a building using the improvised clinometer, so we going to measure the height of the high school building of our school. Then our teacher give us only five minimum of trials to be able to know the height of the building.

At first, it was really hard to solve the height of the building. Just using the improvised clinometer but some of my classmate teach me some easy way to solve it. I was easily gain and learned our activity, i can't believe my self i can solve it with a little help of my classmate. Then it feel great to learned or experience new lesson.