Units
Diagrams
Equations
ISS
100
There is no unit. (hint: friction)
What is the unit of mu?
100
Click the link to see the diagram which will open in a separate page. https://docs.google.com/drawings/d/1eJQ48fcpwqJoJMiug9ao6RPb7h5cl5ZykCspcK1tWO0/edit
What is a free body diagram?
100
Ff = u * FN
What is the equation for the force of friction?
100
m = 85 kg
What is the mass of the astronaut?
200
Seconds, s
What is the unit of time?
200
Click the link to see the diagram which will open in a separate page. https://docs.google.com/drawings/d/1rh37RbyQWTB4FOULhamTFM0bs1rYDVbomsWBqreUHQE/edit
What direction does the object go when the string is cut?
200
Fg = m*g
What is the equation for the force of gravity on Earth?
200
v = 7706.6 m/s^2
What is the average velocity of the ISS?
300
meters per second, m/s
What is the unit of velocity?
300
Click the link to see the diagram which will open in a separate page. https://docs.google.com/drawings/d/13zOpDHGwQ9MKdKhC504b8rdBwOm5phx5hDZKQAglEMo/edit
What is centripetal force?
300
ac = v^2/r
What is the equation for centripetal acceleration?
300
278 - 460 km
What is the altitude of the ISS?
400
meters per second^2, m/s^2
What is the unit of acceleration?
400
Click the link to see the diagram which will open in a separate page. https://docs.google.com/drawings/d/1Ftg9RGfB1jEZnMnAPIyEZoSh1HtA0O5-VS5jrW111uM/edit
What is a gravitational field map?
400
Fc = m * ac
What is the equation for the centripetal force?
400
770-730 Newtons
What is the force of gravity on the ISS?
500
Newtons, N
What is the unit of force?
500
Click the link to see the diagram which will open in a separate page. https://docs.google.com/drawings/d/1xMl3o6lnqCAu4-xTTTn-HhUTuGPKux9ShD6ED8-H4y0/edit
What is a scale drawing of a satellite orbiting Earth?
500
Fg = (G * m1 * m2) / r^2
What is the equation for the universal force of gravity?
500
The ISS and astronaut have the same acceleration and are in constant free fall so they float. The acceleration of the astronaut is 9.1 m/s^2 and the acceleration of the ISS is 8.9 m/s^2. This is close enough to be accepted as equal to support this conclusion.
Why is the astronaut floating?
M
e
n
u