Orbital Motion, Natural And Artificial Satellites (physics Only) (GCSE Physics)

What is the Kessler syndrome (a potential hazard in orbit)?

Why do astronauts feel weightless when orbiting Earth in the International Space Station?

What provides the centripetal force that keeps an artificial satellite in orbit around Earth?

Which orbit is most commonly used for Earth observation satellites that need high spatial resolution?

For a satellite in a circular orbit, which property remains constant as it orbits?

If the orbital radius of a satellite is quadrupled (increasing r by a factor of 4), how does its circular orbital speed change (approximately)?

If the mass of a small satellite is doubled but it remains in the same circular orbit radius, what happens to its orbital speed?

A satellite transmits a signal to a receiver on Earth. If the satellite is moving toward the receiver, what happens to the received frequency due to the Doppler effect?

Why do Earth observation satellites that need very high image detail usually operate in low Earth orbit rather than geostationary orbit?

Which of these is a characteristic of a geostationary orbit?

When launching a satellite into geostationary orbit from near the equator, why is it advantageous to launch eastward?