Question

explain the following (a) an object increase its energy when raised through some height (b) energy is neither created nor destroyed then from whwere do we get energy (c) whaen we push the wal the wall does not move and no work is done (ii) state and explain one example where (a) kinetic energy is present in body and is used (b) potmtial energy is present in a body and is used ​

Answer 1

explain an object increases its energy when rise through some height that is the object is thrown thrown upwards it gets acceleration due to gravity and gets heated with their energy

the process question number b energy is neither created nor destroyed because take an example of a nucleus