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Choose an invention that we've been reading about this week and answer the following questions (IN THAT COLUMN)

1. Is this invention effective at capturing human energy? Why or why not?
2.  What is one disadvantage of this invention? Explain your thinking using evidence from the text.

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How the hand crank works is the person has to crank the handle because the system gets energy from the battery s that energy can power up the flashlight

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Yes it is because the crank turns on the flashlight when it's turned. The one disadvantage is it needs to be turned to work.

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Yes, it is effective at capturing human energy.  The energy is always available as long as there is someone to crank the flashlight.
The disadvantage is you have to keep cranking it. It may make you very tired.

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I think it does have to use human energy because we need to walk up and down stuff for it to work and power up stuff. Also a disadvantage is that you have to walk up stuff and down.

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This invention is effective at capturing human energy because it should be easy for any human to turn a crank to get energy. However, a disadvantage of this invention is that sometimes the person can get tired from cranking it and now he doesn’t want to crank it anymore, not giving it energy, so he uses it for the rest of the duration, and then when it runs out, he leaves it there to be cranked for another time.

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The hand crank flashlight works by turning the crank that powers the generator with kinetic energy that turns into potential energy that charges the battery to give light.

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How the backpack works is when you move up and down the  generator powers up and can charge your electrical device. The disadvantage to this is that if it fall the generator could brake which means it wouldn’t work.

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It is effective because all it needs is the human energy from the person who is rocking the chair

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This captures human energy because the more you crank it the more energy you give off.

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Yes,  it is effective at capturing human energy.  All you need to do is to keep rocking the chair back and forth.
The disadvantage of this chair is not portable, it means you cannot bring it with you to everywhere.

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Yes because to make energy a human or object needs to move fast to make energy

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This machine work when you move the crank so that the generator could build up energy and charge the flashlight. One disadvantage is that you have to help your to rescue people not stand there and crank the flashlight. So the disadvantage is that you wouldn’t be able to help your team.

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This captures human energy because every time you walk up a slope it gives off of the motion energy to charge small eletronic devices.

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This human capturing energy back pack is affected by by human energy because the human has to crank it.

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Yes because when you pedal you causing energy to the bike

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Not really because it has to get braked to give energy. One disadvantage is that you need to work hard to get energy.

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1) The answer is yes because the energy that it using to power the book bag is motion. The energy of motion turns the generator and powers the batteries to charges to phone, computers or other things
2) The disadvantaged of this invention would be when stopping the energy would be gone because there is no motion.

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Yes this invention is effective at getting human energy because u have to use your energy to move the hand crank with your hand so yes it does have use of human energy.the disadvantage of this flashlight is u have to do the hand crank  while your team is doing hard work and u can’t help them.

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Yes Because when you move your leg it get energy by that. One disadvantage is that it you need to be moving for it can work. In the text it says “The knee brace spins the generator when you’re straightening your knee instead of when you’re bending it. That’s because your muscles don’t have to work as hard to straighten your knee as they do to bend it. This makes the knee brace easier to use—you don’t have
to work very hard to spin the generator.” also it says “An energy-capturing knee brace uses the kinetic energy of your moving leg to charge
a battery.”

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The hand crank flashlight light is nice because you barely use energy all you got to do is move the crank then is turns on the battery and then the flashlight is on

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It would be effective because when you are hiking or going camping you will be walking or running which produces energy for your devices and charges it the main thing is that running or walking produces energy then goes in your devices. The disadvantage of this invention  is that it could get wet and malfunction.

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The hand crank because your wasting less energy and there no battery and you are using humans energy.

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I the rocking chair. I picked this one because it is the most comfortable.

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1) This invention is effective at capturing human energy because you have to move to get energy.
2)The disanvantage of this invention is that it only powers small divices.

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The hand-crank flashlight is very effective because you just need to use energy from the human body. One disadvantage is if you want to use more energy for the flashlight you need to have more energy stored.

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The awnser is yes because it’s the best

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I think the hand crank flashlight is effective because you dont need any batterys or any electricity. Imagine if you were in a black out and needed light but had no electricity well just use this! All you have to do is use your body heat. One disadvantage is that its really small, but that can also be a good thing because you can carry it anywhere.

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The hand crack flashlight is good for anywhere and only needs you and that it to turn a flashlight on. And what you all got to do is to move the hand crank to it work cause the hand crank flashlight needs the humans body so it could work. So you have to move it then the hand crack provides energy from the flashlight then went the flashlight gatherers the hand crank energy to it to work. And you could bring it anywhere and that good thing for a imergency.

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It is effective because all you have to do is rock back and forth and thats all. One disadvantage is that you might get tired of rocking back and forth all day and it can get tiring.

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The rocking chair is capturing human energy because when a person is in the rocking the chair and it's moving back and forth it uses that energy. The disadvantage of the rocking chair is that people can't take the rocking chair to different places.

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This invention is not using that much energy. I say this because in the text it says this doesn’t use that much energy because it powers when you straighten your leg

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This invention is effective at capturing human energy because when you turn the crank to power the light you are turning your hand to make the generator work and then it charges the battery. One disadvantage to having this invention is that you have to power it yourself so it will take a while since how many times you crank it yourself. For evidence in the passage it said “You turn a crank on the outside of the flashlight and the crank turns a generator inside the flashlight.”

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1) The answer is yes because you are using your energy to walk and get Energy the fast you walk the more the generator spins and you can get more energy.

2) one  disadvantage is that you have to carry a book pack and you have to walk a lot to wet energy. For example when you phone is not charge you need energy and what happen when you are  tired You phone can’t charge.

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The Flashlight works by using kinetic energy to turn the crank and when you turn it, it converts into potential energy and it powers up the flashlight. The disadvantage is that if the hand crank breaks off, then you have to waste batteries.

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This invention is effective because ever time you walk somewhere it will creat energy just off of your body.

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I choose hand crank flashlight because you can pack it with you and it does not die when you need it.

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One disadvantage of the knee brace energy thing is that it will not work if you get too tired and it will not keep making energy.

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The hand crank flashlight effective to human energy.

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class:602

1) Yes because when you are pedaling you are making the generator spins and the energy goes to the  devices

2) one disadvantage is that you have to pedal to get entry and what will happen if your legs get   tired  the entry can’t produce.

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this object is vey good for captureing human energy because the human will enjoy the rocking chair. the didavamtige is that your not going no where just sitting there