True / False type questions : Total energy of a system is always conserved, no matter what internal and external forces on the body are present.

State if each of the following statements is true or false. Give reasons for your answer. (a) In an elastic collision of two bodies, the momentum and energy of each body is ocnserved. (b) Total energy of a system is always conserved, no matter what internal and external forces on the body are present. (c) Work done in the motion of a body over a closed loop is zero for every force in nature. (d) In an inelastic collision, the final kinetic energy is always less than the initial kinetic energy of the system.

Are the following statements true or false ? Give reasons. Bread is always a consumer good.

Which of the following are statements and which are not ? Give reasons for your answers. Who are you ?

Which of the following are statements and which are not ? Give reasons for your answers. The sun is a star.

State if each of the following statements is true or false. Give reasons for your answer. a) In an elastic collision of two bodies, the momentum and energy of each body is conserved. b)Total energy of a systm is always conserved,no matter what internal and external forces on the body are present. Work done in the motion of a body over a closed loop is zero for every force in nature. d) In an inelastic collision, the final kinetic energy is always less than the initial kinetic energy of the sytem.

Are the following statements true or false ? Give reasons. Butter is only a final product.

Indicate whether the following statement is true or false. Justify your answer :

Which of the following statements are true? Give reason to support your answer.Every set has a proper subset.

Are the following statements true or false ? Give reasons. Market price is always more than factor cost.