Question

1) what is meant by the statement 'Rest and motion are relative terms'? give examples to show it. 2) identify the following as scalar and vector quantity: temperature , force , length , power , work and energy.3) state which of the following are possible , give example for each. -a body moving horizontally with acceleration in vertical direction. - a body moving with a constant speed in an accelerated motion.

Answer 1

1) You can refer to class 9th pradeep physics
2) temperature- scaler
Force- vector
Work- scaler
Energy- scaler
3) i.) Possible
ii.) Not possible