True or false: conservation under gravity

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   Angular momentum is conserved for motion under gravity.

2. Statement is true

   Yes

   Statement

   Total mechanical energy is conserved.

3. Statement is true

   No

   Statement

   Linear momentum is conserved.

4. Statement is true

   Yes

   Statement

   Conservation of angular momentum leads to Kepler's second law.

5. Statement is true

   Yes

   Statement

   That result holds for any central force, not just gravity.

Explanation