Stuff to Know
This tool measure air pressure
What is a barometer
Name the two gas laws that discuss volume
What are Charles and Boyles
First you stand on one foot, then on two feet. What has happened to the FORCE on the ground.
What is it has not changed. Force remains the same - your weight has not changed (weight = force)
Why is walking in high heals more difficult that walking in sneakers?
What is the heal provides less area - causing more pressure on your feet
This is an objects mass per unit volume
What is density
This tool measure pressure in a fluid
What is a manometer
This law states that as pressure increases the volume of the object decreases
What is Boyles law
If you were to climb deep into an underground cave what would happen to the pressure in your ears?
What is the pressure would increase - there is more air pressure on top of you now
As you increase altitude, pressure will _________.
What is decrease (there is less air)
How does fluid pressure flow?
What is moves from high pressure to low pressure
This is pressure exerted by gases and liquids
What is fluid pressure
This law states that as temperature increases or decreases, the volume of the object also increases or decreases
What is Charles law
What 2 results happen to the air inside of a syringe when you compress the syringe closed? (covering the end with your finger)
What is the air becomes more dense and increases pressure
What will happen to the pressure sealed container of fluid (such as a balloon) if it is placed outside on a cold winter day?
What is the balloons pressure will decrease
What type of pressure is a result of:
Fast moving air causes _______ pressure
Slow moving air causes _______ pressure
What is:
Fast = low pressure
Slow = High pressure
This is the air pressure that is acting all around you at equal amounts of pressure
What is atmospheric pressure
This states that fluid is pressurized equally everywhere when a certain force is applied
What is Pascals Principle
What will happen to a sealed flexible container (such as a balloon) as you increase in altitude?
What is the balloon will increase in size due to the change in air pressure
In a closed container removing heat will _______ volume.
What is decrease
Explain how a straw works
What is - after air is withdrawn - Pressure on the outside of the straw is is greater than on the inside of the straw forcing the liquid up the straw
What characteristic will never change about at object?
What is the objects mass
This states that as a speed of a fluid increases the pressure decreases
What is Bernoullis Principle
If an elephant were to stand on a balloon, the balloon would pop. Who's law explains this?
What is Pascals Principle - the air inside the balloon is acted on equally on all sides and will pop under the pressure
If Force of a fluid is increased and pressure remained the same, what will happen to the volume?
What is the volume was increases also
1. Explain why a boat will gravitate towards a dock when tied.
2. Who's law explains this?
What is
1. The air pressure between the boat and dock is reduced - so the air pressure outside is greater pushing them together
2. Bernoulli s Principle