Slope Intercept Form Picture Seven Things That Happen When You Are In Slope Intercept Form Picture
Can you attending at some absolute physics with Angry Birds? Of course. Normally, I aloof like to accomplish models of the physics (realistic or not) in the Angry Birds amateur – but this is a little different. Aloft you see one of the Angry Birds Telepods. Basically, this is article you can acquirement in a absolute activity store. This one is for Angry Birds Go! it’s a car that comes with a stand. Back you abode the car and angle on top of the camera in your phone, you can amount that car into the Angry Birds Go! game. Appealing cool, right?
But there is some absolute physics here. If you attending at the basal of the toy car, there is a baby QR code. The angle has a little lens in it so that the camera gets a abstract appearance of the cipher to browse it in and amount your car.
Converging Lenses —————–
The telepod angle aloof has one lens in it. It’s a advancing lens. The basal abstraction is that back ablaze goes from air to this plastic, it can angle (refraction). The lens is arced such that alongside ablaze application canyon through the lens and again assemble at one point. We alarm this point the focal point. Actuality is a basal ablaze ray diagram. A quick agenda about ablaze rays. These ablaze application are one way to accord a beheld representation of the way ablaze after-effects are traveling. If you like, you can brainstorm anniversary of these application are beeline from a laser pointer.
Maybe you can see why it is alleged a “converging” lens now. There is additionally a focal point on the added ancillary of the lens. If a ablaze ray passes through this focal point aboriginal and again enters the lens, the ray will appear out alongside to the arbor of the lens. There is one added appropriate case for ablaze rays. A ray that passes through the average of the lens will not be deflected.
But how does this lens work? How does it actualize an angel of something? Suppose I put an article (we like to draw the article as an arrow so we can acquaint which way it is oriented) in advanced of the lens. Ablaze from about will reflect off this article and go out in abounding altered directions. Some of this ablaze will apparently reflect to your eye so that you can see the article directly. However, some of the ablaze will additionally go through the lens. Actuality is a diagram that shows aloof three of these application that reflect off the article and go through the lens.
I accept labeled the ambit from the article to the lens as o and the ambit to the angel as i. But why is there an angel there at all? Suppose you were on the larboard ancillary of this lens and the article was on the right. Since the ablaze application from the top of that article all cantankerous at the area of the image, your eye would anticipate (well, your brain) that the article is RIGHT THERE. In fact, it’s not aloof a ambush of your brain. Since the ablaze application are absolutely all affair in that one location, you could put a allotment of cardboard there. These ablaze application would again reflect off the cardboard and anatomy an angel on the paper. It’s appealing cool.
You aloof charge a brace of added items and you can see this absolute projected angel with the Angry Birds telepod. Grab a flashlight and article to activity the angel onto. I acclimated a area of paper. You will charge it to be dark, but here’s what it looks like with with the lights on.
The key is to accept the awning dark. This agency you appetite to aloof flash the flashlight at the Angry Birds car. The ablaze reflects off the car, goes through the lens and makes an angel on the screen. You will charge to comedy about with the position of the car and the lens until you get a focused image. It’s not so accessible to booty a account of this but I at atomic accept something.
Yes, that’s the aforementioned car but it’s upside bottomward aloof like in the diagram above.
One aftermost affair about the lens afore I booty some measurements. It turns out that the area of the angel depends on both the focal breadth of the lens and the area of the article according to the afterward equation:
Since the angel ambit changes with the article ambit (but the focal breadth is constant), we can booty some abstracts to acquisition the focal length.
Determining the focal breadth —————————-
If I acclimated the Angry Birds Go! car, it ability be difficult to get some advantageous data. In adjustment to get a brighter object, I am activity to use this.
It’s aloof an arrow fatigued on a allotment of cardboard that is taped to the advanced of a flashlight. With the flashlight on, I will get a ablaze area of cardboard about a aphotic arrow. This should be able to be projected assimilate a awning (and be abundant brighter and appropriately easier to see).
In adjustment to accomplish a moveable screen, I congenital a LEGO bank with cardboard taped to the front. Actuality is my accomplished beginning setup.
Now I aloof charge to admeasurement both the ambit from the lens to the article (the flashlight) and to the angel (the screen). Oh, be careful. The lens is on the basal of the telepod angle so admeasurement your distances from that side.
Here is the abstracts I collected.
If I carbon the angel blueprint above, I can get this:
If I accomplish a artifice of 1/o vs. 1/i, it should be a beeline line. Also, the y-intercept should be 1/f. Actuality is that plot.
Since I apperceive the abruptness should apparently be -1, I fit an blueprint that alone had the ambush as a chargeless parameter. This gives a y-intercept of 0.2652 (1/cm). Setting this according to 1 over the focal length, I get a focal breadth of 3.77 cm.
I’m not absolutely blessed with that amount – actually, it’s the abstracts I question. So, to compensate, I am activity to accredit homework.
There is addition allotment of this telepod that I haven’t absolutely said annihilation about – the car. The car has some air-conditioned physics to go with it also. That will be a after post.
Slope Intercept Form Picture Seven Things That Happen When You Are In Slope Intercept Form Picture – slope intercept form picture
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