Thames & Kosmos Solar Mechanics handleiding

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Thames & Kosmos

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Handleiding

HERE’S HOW

1. Assemble the parts as shown.

2. Slowly turn gear A one time around ex-

actly, which is called one rotation. Care-

fully observe gear B as you do this.

How many times does gear B turn for

each full rotation of gear A?

3. Now slowly rotate gear B around once.

Observe gear A as you do this.

How many times does gear A turn for

each full rotation of gear B?

Gear test 1

YOU WILL NEED

→ 7 parts from the kit:

For each rotation of gear A, gear B ro-

tates three times. Gear A has 60 teeth

and gear B has 20 teeth. Thus, after the

gears have meshed 20 teeth together,

the small gear has already spun around

once, while the large gear has only made

it a third of the way around. For each ro-

tation of gear B, gear A turns a third of a

rotation.

Gear B spins faster at its center than

gear A. So you see, gears can be used to

change rotational speeds.

→

WHAT’S HAPPENING?

60 Teeth

20 Teeth

Which of these four locations for the

red gear will allow it to turn when the

yellow gear turns?

A B

C D

EXPERIMENT 1

Gearing Up: Transmissions | 5

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