Will you weigh more at the moment the elevator goes up or the moment the elevator goes down?
up
100
What nationality was Kepler?
German
100
Kepler's first law states that planets orbit the sun in what shape?
an Ellipse
100
where is the potential energy highest in an ellipse?
The Apogee
100
What country was Johannes Kepler
Germany
200
How do astronauts have a support force in space?
Hint: discussed in last chapter also
a rotating space station creates a support force
200
During what century did Kepler conduct his work?
Early 1600's
200
What is the equation for Kepler's Third Law?
T^2/r^3
200
what type of energy is greatest at the perigee?
Kinetic Energy.
200
What country was Tycho Brahe from?
Denmark
300
Define satellite in your own words
an object that continually falls around earth, or whatever its gravitational source
300
Of whose work did Kepler base his laws off of?
Tycho Brahe
300
When does a satellites speed increase?
When it is coming closer to the object it is orbiting
300
What are the two fixed points on an ellipse?
The Foci
300
What makes a satellite a satellite?
A satellite is an object that continually falls around earth.
400
you are standing in an elevator on a scale. when does the scale read more? when you go up or when you go down? when does the scale read 0 without you stepping off?
when you go up.
when the elevator falls freely.
400
What word did Kepler create and use, but not center his laws around?
satellite
400
Do Kepler's laws discuss planets, satellites, or both? Can both be applied?
When it comes closer to the object it is orbiting
400
a rock is orbiting at a of radius 12 miles from earth at 200m/s , a piece of space junk is orbiting 15 miles from earth at 100m/s, which has the longer period
the space junk
400
What do you call the force you exert against the support force of earth.
Weight
500
Define Weightlessness in your own terms
The condition of free fall toward or around Earth, in which an object experiences no support force.
500
How long of a gap was there between the ideas of Kepler's first two laws, and the third?
10 years
500
Explain Kepler's second law
equal areas of space are swept out in equal intervals of time
500
Where in an orbit is the sum of the KE and PE the greatest?