Evidence of Air
What is a atmosphere?
A collection of gases surrounding a planet.
If there are two objects that are the same shape, but different mass, will they land at different times?
They will not land at different times.
What is thrust?
The force that moves an object through the air.
Can air be compressed?
Yes it can.
What are the four forces of flight?
Thrust, Lift, Weight/Gravity and Drag
What makes rusting?
Iron + Oxygen = Iron oxide (rusting)
If there are different shaped objects but, same mass, will they land at the same time if dropped.
No they will not land at the same time.
"The acceleration (change of speed) of an object is related to the force applied to it." This is a definition of one of the three laws of Newton. Which is the law that this definition best describe?
Second law.
What could you put compressed air into?
When you pump your bike tires up.
What are two things that are impacted by aerodynamics?
Some examples birds, bats, Airplanes, helicopters, etc.
What is altitude?
Altitude is the height of something when compared to a point
What is The Law of Gravity?
The law that states that two objects fall towards the earth at the same rate, no matter the mass of the object.
If you kick a ball, what would be the force that would force it to stop even though an object in motion, stays in motion?
This force is called friction. Friction is the force that stops and create resistance with the object and the ground.
Why does air compression matter?
Because you need it for such things as tools and such
How do objects move through air?
Thrust
What gases are air made of?
Oxygen, Nitrogen, Argon, Carbon dioxide
Which way does drag push up or down for a falling object?
Drag pushes upward, so it slows the object.
First law of motion and third law of motion.If someone pushed off a skateboard with their back leg facing the direction of south, which way will the person go?
The opposite way, which is North
How does air compress?
When you put a bunch of air into a tight place where it can't get out and then add more and more until it compresses like a helium tanks.
When air moves faster, the air pressures higher. True or False
FALSE
What is most of the earth's atmosphere's air made of?
It is mostly made of nitrogen with 78% of it in earth's atmosphere's air.
If one plane weighs 1000 kg and the other plane weighs 3999 kg which one needs more lift?
The one with the weight of 3999 kg needs more lift.
Write every definition of the laws of Newton.
First - An object at rest stays at rest. An object in motion stays in motion. Second- The acceleration (change of speed) of an object is related to the force applied to it.Third - For every action, there is an equal and opposite reaction.
What happens when air is compressed too much?
The air molecules will start to move really fast and it will increase in temperature.
How does Aerodynamics work?
The amount of thrust compared to the opposing forces decide wear the object will move/go.