以下是一些常见的曲线运动英文题：
1. Curve motion problems
2. Curved trajectory problems
3. Kinematics of curved motion
4. Dynamics of curved motion
5. Motion in a curved path
6. Curved path problems
7. Curve integration in motion
8. Curve acceleration in motion
9. Curve velocity in motion
10. Curved trajectory equations
以上只是一些常见的例子，实际上曲线运动相关的英文题可能更加多样化和复杂化。
英文题：Which of the following is a type of motion that involves continuous change in direction?
