1. What are the two factors that affect the force of gravitation? 2 A stone and a piece of paper are dropped simultaneously from the same height on the lunar surface. Which one will fall faster
and why?
3. How does acceleration due to gravity 'g' vary at different places on the earth?
4. What is hydraulic press? Write its one use.
liquid B?
5. In present day's world, the use of hydro-electricity is increasing,
Write any two reasons.
6. Write any two differences between clinical and laboratory
thermometer
7. What are specific heat capacities of water, mercury, aluminium
and copper?
8. Write any two rules of refraction of light through lens.