Motion in Gravitational Fields (HSC SSCE Physics): Flashcards
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State of orbiting objects
State of orbiting objects
Continuous free fall towards the body they orbit
Force providing centripetal force in orbits
Force providing centripetal force in orbits
Gravitational force
Orbital velocity equation
Orbital velocity equation
Relationship between orbital radius and velocity
Relationship between orbital radius and velocity
Higher orbits move more slowly
Effect of orbiting object's mass on orbital speed
Effect of orbiting object's mass on orbital speed
No effect - mass cancels out
Geostationary satellite definition
Geostationary satellite definition
Stays above same point on Earth's equator
Geostationary orbit altitude above Earth's surface
Geostationary orbit altitude above Earth's surface
Approximately 36,000 km
Near-Earth orbit altitude range
Near-Earth orbit altitude range
Less than 1,200 km above Earth's surface
ISS orbital period
ISS orbital period
Approximately 93 minutes (1.5 hours)
Cause of astronaut weightlessness in orbit
Cause of astronaut weightlessness in orbit
Free fall, not lack of gravity