All 4 questions plz ( pls hurry)

Aknife blade is a(n) a. lever b. screw c. wedge d. inclined plane

The transfer of heat through the movement of a gas or liquid a. convection b. conduction c. radiation

The table below shows the acceleration of gravity on different bodies in the solar system. on which body would a 10 kg lamp has the most gravitational potential energy when lifted to a height of 2 m? a. earth b. mars c. neptune d. uranus