%%

Gaokao Physics Practice Question

“嫦娥一号”是我国首次发射的探月卫星, 它在距月球表面高度为 $200 \mathrm{~km}$ 的圆形轨道上运行, 运行周期为 127 分钟. 已知引力常量 $G=6.67 \times 10$ - $11 \mathrm{~N} \cdot \mathrm{m}^{2} / \mathrm{kg}^{2}$, 月球的半径为 $1.74 \times 10^{3} \mathrm{~km}$. 利用以上数据估算月球的质量约 为

  1. A.$8.1 \times 10^{10} \mathrm{~kg}$
  2. B.$7.4 \times 10^{13} \mathrm{~kg}$
  3. C.$5.4 \times 10^{19} \mathrm{~kg}$
  4. D.$7.4 \times 10^{22} \mathrm{~kg}$

Want to know if you got it right?

Answer this and thousands more real Gaokao previous-year questions free, get graded instantly, and climb the global ranked leaderboard.

Practice Gaokao free →

More Gaokao Physics questions