Thames & Kosmos Physics Workshop handleiding
Handleiding
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Who Falls Up?
How many times in your life have you taken a tumble? A dozen times? A hundred?
On any one of those occasions, did you ever fall upwards? Or did you ever float
around in the air like an astronaut? No, down you went, each time.
The time in your life when you fell most often was probably when you were just
learning to walk. No doubt, you were impatient to get your head in the air and stand
on your own two feet. You wanted to move along much faster than you could when
crawling along on all fours. You trained for weeks, trying your hardest to learn
how to keep your balance. It was a mighty struggle against a formidable foe, a foe
that tries its hardest to pull everyone and everything down to the ground. Its name:
gravity.
Gravity
We usually don’t think much about
gravity, but we always feel it. When we
lift a pitcher of water, we feel it. When we
pick up a pencil, we feel it, but less than
with the pitcher of water. Earth’s gravity
exerts its force equally on all physical
bodies. So gravity must have something
to do with weight — as we will learn in
more detail with our first experiment,
the potato trap.
Earth Aracts Us
KEYWORD: GRAVITY
Gravity is the araction of the mass of Earth,
the moon, or a planet, toward bodies at or
near its surface. On Earth, the gravity at the
surface is a downwards force that causes an
acceleration equal to about 9.8 meters per
second per second (m/s/s or m/s
2
).
DID YOU KNOW?
Gravity builds
muscles
In order to be able to walk upright, we
grow sturdy bones and strong muscles.
Our largest muscles are the ones that
we use for walking — in our legs and
rear end. If Earth’s gravity were much
greater, we would walk around like
hulking muscle-bound brutes. If it were
much weaker, we would have stick-thin
legs and skinny lile booms. Plants
and animals would all look different
too.
WORKSHOP 1: POTATO TRAP
YOU WILL ALSO NEED
› 1 wooden match
HERE’S HOW
Follow the assembly steps
to construct the potato trap
model. Be sure that the
table on which the model
is siing is level and not
tilted.
Remove the head from a
wooden matchstick and
insert it into the slit of a
shaft plug. This will be
the stick on which your
potato will be impaled.
7
Earth Attracts Us
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Productinformatie
| Merk | Thames & Kosmos |
| Model | Physics Workshop |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 12112 MB |
