Chapt 16 Flashcards
what was the name of Galileo’s assistant who was also the first to investigate the atmosphere?
Evangelista Torricelli
How much does 1 cubic foot of rocks weigh?
200 pounds
how much does 1 cubic foot of water weigh?
65 pounds
The atmosphere does have considerable weight. At sea level, we have approximately _____ pounds of air sitting on our heads.
14.7
Torricelli began doing experiments with ________, realizing it was easier to conduct air pressure experiments with it because it is much denser than water or air.
Mercury
Required air to be pumped into a pipe –
called a lift pump.
Water pump
At sea level, we have approximately 14.7 pounds of air sitting on our heads – we call this ____ _______.
air pressure
_______ began to use a column of mercury instead of water to study air pressure.
Torricelli
Who wondered if the height of mercury
would change on a mountain.
Blaise Pascal
When gas gets compressed, it gets
____.
hot
we use ________ to measure
atmospheric pressure in meteorology.
Barometers
what does Altimeter mean?
Altitude meter
was a man dedicated to the service of God. In 1657, he designed an improved air pump.
Robert Boyle
The improved air pump was used by many people. give some examples of how other people used it.
Doctors found it similar to the way a heart
works and were better able to understand the circulation of blood because of it. Miners used his pumps to pump out flooded mines. Sailors used it to pump out water from ships.
What did people think the Atmosphere was?
a spirit
True or False:
A balloon weighs more when it is flat than when it is blown up.
False
The ____ ______ Torricelli investigated was
required air to be pumped into a pipe – called a lift pump.
Water pump
The atmosphere does have considerable weight. At sea level, we have approximately 14.7 pounds of air sitting on our heads – we call this ____ ________. That’s 14.7 pounds per square inch.
Air pressure
Who began to use a column of mercury instead of water to study air pressure? The column of mercury could be much shorter.
Torricelli
Who couldn’t physically carry out this idea, so he hired his brother-in-law to test his hypothesis? His BIL measured air pressure at the height of one mile. It had fallen 1/10 of its original height, meaning 1/10 of the atmosphere was found below a mile.
Blaise Pascal
About how high is our atmosphere?
300 miles
True or False:
When gas gets compressed, it gets hot.
True
He confirmed that all bodies fall at the same speed in a vacuum, something _____ had suspected many years before.
Galileo
