Can you tell ?(a) When can we say that displacement has taken place?(b) What should be taken into account for measuring work?(c) What are the various forms of energy ?(d) Describe one natural chain of transformation of energy.(e) Why should we save energy ?(f) What is ‘green energy’ ?(g) What are the non-conventional energy resources ?(h) Which forms of energy from the sun are used in solar energy devices ?(i) Why should we maximise the use of non-conventional energy resources ?

Can you tell ?(a) When can we say that displacement has taken place?(b

1.	Can you tell ?(a) When can we say that displacement has taken place?(b) What should be taken into account for measuring work?(c) What are the various forms of energy ?(d) Describe one natural chain of transformation of energy.(e) Why should we save energy ?(f) What is ‘green energy’ ?(g) What are the non-conventional energy resources ?(h) Which forms of energy from the sun are used in solar energy devices ?(i) Why should we maximise the use of non-conventional energy resources ?
Answer» Can you tell ? (a) When can we say that displacement has taken place? (b) What should be taken into account for measuring work? (c) What are the various forms of energy ? (d) Describe one natural chain of transformation of energy. (e) Why should we save energy ? (f) What is ‘green energy’ ? (g) What are the non-conventional energy resources ? (h) Which forms of energy from the sun are used in solar energy devices ? (i) Why should we maximise the use of non-conventional energy resources ?