Thames & Kosmos Pepper Mint in the Great Treehouse Engineering Adventure handleiding

Niet gecategoriseerd

Thames & Kosmos

36 pagina's

PDF beschikbaar

Handleiding

WHAT’S HAPPENING

The catapult works like this: When you pull

back the throwing arm, the two ends of the

cord wind around the reel and tighten up.

Because they are not stretchy, they pull

the plastic arms of the catapult

downward with them. Then when you let

go of the throwing arm, the tension arc

springs back to its “relaxed” position

again. The faster that happens, the more

momentum your paper “coconut” has

when it’s launched.

REMEMBER

You have just converted energy! When you tension the arc

by pulling back the throwing arm, the catapult stores

energy. When you let go of the arm, the stored energy is

converted into the energy of motion (kinetic energy). There

are many diﬀerent kinds of energy, such as mechanical,

electrical, and chemical energy. Energy can be stored or

converted but it can’t be used up. This is called the law of

Conservation of Energy.

Now cross the ends of the string over each

other and tie them ﬁrmly onto the hooks on

the tension arc.

Pull back the throwing arm to tension the

catapult. As soon as you let go, the throwing

arm shoots forward.

Tip!

Don’t launch anything except small paper

balls with your catapult. Crumple up pieces

of (brown) paper — about the size of this

note — into pellets and see if you can hit

the monkey on the elastic belt pulley.

Coconut

Catapu

Bekijk gratis de handleiding van Thames & Kosmos Pepper Mint in the Great Treehouse Engineering Adventure, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.