energy transformation that occurs when rocket fuel burns
chemical energy --> thermal energy
100
What does LEO stand for and what does one do?
A Low Earth Orbit satellite orbits just above the atmosphere at about 12,000 mph.
100
What is the Law of Conservation of Energy?
Energy is neither created or destroyed but only transformed.
100
How does Newton's 3rd Law of Motion describe how a rocket launches?
Rocket fuel burns and escapes from the bottom of the rocket. This forces the rocket upwards.
100
If your car has a mass of 2,000 Kg and a force of 5,000 n, what is its speed?
2.5 m/sec squared
200
energy transformation that occurred when you pumped up your rocket
mechanical energy --> elastic potential energy
200
What does GEO stand for and what does one do?
a geostationary satellite orbits above the Earth at the equator along with the Earth's rotation. They are used for weather satellites and for communication.
200
What is the equation that expressed Newton's 2nd Law of Motion?
Force = Mass X Acceleration OR
F = ma
200
How does Newton's First Law of Motion describe how a rocket moves through outer space.
After a rocket escapes Earth's gravitational field, it continues on forever with no further expenditure of fuel.
200
Sally has a car that accelerates at 5 m/s squared. If the car has a mass of 2000 kg, how much force does the car produce?
10,000 Newtons
300
energy transformation that occurred when the Apollo 11 rocket took off
chemical energy --> thermal energy + mechanical energy
300
What does GPS stand for and how does it work?
The Global Positioning System is a system of 27 GEO satellites that relay position to people on Earth.
300
What is Newton's First Law of Motion?
An object at rest remains at rest; an object in motion remains in motion unless acted on by a net force.
300
How does Newton's 2nd Law explain how a rocket moves.
Enough fuel is needed to move the massive rocket to orbital velocity.
300
Newton’s 2nd Law of Motion can be expressed as the equation: Force = Mass X Acceleration. Another way of writing this equation is:
Mass = Force/Acceleration OR Acceleration = Force/Mass
400
energy transformation that occurred when your rocket took off
elastic potential energy --> mechanical energy
400
These provide important information about conditions in Earth’s atmosphere. Some are in GEO. Others are in LEO or in Polar orbits.
weather satellites
400
What is Newton's 3rd Law of Motion?
For every action force there is an equal and opposite reaction force.
400
Your car has a mass of 2,000 Kg and a force of 5,000 Newtons. What calculation do you perform to find the speed of the car?
Acceleration = Force divided by Mass OR
5,000/2,000
400
When classes used different amounts of water in their rockets to find out which would fly best, what was the dependent variable?
which flew best
500
When your rocket fell to the ground, what energy transformation occurred?
gravity --> mechanical energy
500
What were the names and nationalities of the first two satellites launched from Earth?
Sputnik 1 from The Soviet Union
Explorer 1 from The USA
500
State Newton's 3 Laws of Motion
1st: An object at rest remains at rest; an object in motion remains in motion, unless acted on by a net force.
2nd: Force = Mass X Acceleration OR F = ma
3rd: For every action force there is an equal and opposite reaction.
500
A space probe traveling with a force of 72,000,000 Newtons has a mass of 1,800 Kg. What is its speed? [Give your answer in m/sec squared.]
40,000 m/sec squared
500
Sally has a car that accelerates at 5 m/s squared. If the car has a mass of 3000 kg what is the force of the car?