1. What is the force of gravity on a 1 kg mass ?
2. What energy is needed to lift a 1 kg mass a distance of 3 meters ?
3. What energy is needed to lift you one story in this building ?
4. How high can a 1 kg mass be lifted using 1 kJoule ?
5. How much mass can be lifted 10 meters with a Megajoule ?
6. A car has a mass of 2000 kg. What energy is needed to lift it 100 meters.
7. How many people can be lifted one story with a Megajoule ?