Space Exploration Technologies
Physics ⇒ Earth and Space Physics
Space Exploration Technologies starts at 8 and continues till grade 12.
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See sample questions for grade 11
A satellite is in a circular orbit 400 km above Earth's surface. If Earth's radius is 6400 km, what is the satellite's orbital radius?
A satellite transmits data to Earth at a rate of 10 Mbps. How much data is sent in 5 minutes?
A spacecraft needs to change its velocity by 2 km/s to enter a new orbit. If its mass is 1000 kg, what is the change in momentum required?
Describe one reason why vacuum conditions in space are both an advantage and a challenge for spacecraft design.
Describe the function of reaction control thrusters on a spacecraft.
Describe the main difference between a geostationary satellite and a polar orbiting satellite.
Explain the importance of redundancy in spacecraft systems.
Explain the purpose of a heat shield on a spacecraft during re-entry into Earth's atmosphere.
Explain the role of telemetry in space missions.
Explain why communication with spacecraft becomes more challenging as the distance from Earth increases.
Explain why multi-stage rockets are used for launching spacecraft into orbit.
