%%

Gaokao Physics Practice Question

一轻质弹簧原长为 $8 \mathrm{~cm}$, 在 $4 \mathrm{~N}$ 的拉力作用下伸长了 $2 \mathrm{~cm}$, 弹簧末超出弹性限度, 则该弹簧的劲度系数为

  1. A.$40 \mathrm{~m} / \mathrm{N}$
  2. B.$40 \mathrm{~N} / \mathrm{m}$
  3. C.$200 \mathrm{~m} / \mathrm{N}$
  4. D.$200 \mathrm{~N} / \mathrm{m}$

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