Gravitational force
frictional force
nuclear force
electrical force
magnetic force
1. Moving Maglev frain
2. lightning during a thunderstorm
3. nuclear explosion
4. Orbiling planets
5. Rising and falling on earth's ocean fides
6. A refrigerator door stays closed.
7. A ball rolls off the table and fails to the ground
8. A car stops when a driver steps on the break
9. Telephone at work
10. A boy finding it difficult to push a box on the floor​