Describe at least two ways that gravitational and strong nuclear forces are alike and two ways that they are different.

They are alike, because:

1. They are both attractive

2. They do not depend on charge

3. Are the results of fields

They are different, because:

1. Gravity occurs at the level of space while nuclear force occurs at the subatomic level

2. Nuclear force is applied to protons, gravitational one is applied to matter

3. Gravitational force is very weak, while nuclear force is very strong