MYP Physics · 15 · multiple choice
Name the force that keeps a satellite turning
Fields and gravity · Original GioPhysics question with a detailed, mark-by-mark answer guide.
- Demand
- recall
- Marks
- 3
- Topics
- 1
- Answer
- Complete
A satellite moves in a circular orbit around Earth at constant speed. Which statement best describes the force on it?
- a
Select and explain Select the correct statement and explain why constant speed does not mean zero acceleration.
3 marks
Ready to self-mark?Reveal the detailed answer guide
a
Select and explain Select the correct statement and explain why constant speed does not mean zero acceleration.
Predict from the governing principle before looking for a matching option. Then reject alternatives by checking direction, units, limiting behaviour or the physical meaning of each statement.
- 1
Selects option C: gravity provides the resultant force directed towards Earth's centre.
- 2
States that velocity changes because its direction changes even though speed is constant.
- 3
Links the inward acceleration to an inward resultant gravitational force.
Private on this device