Some buildings rest on long, sturdy metal rods that are driven far down into the ground. In Fig. 2.1, a machine releases a heavy hammer so that it lands on each metal rod and forces it into the ground.
(a)[3]
Calculate the mass of the heavy hammer.
(b)[4]
Calculate the work done by the machine in lifting the heavy hammer. Include the unit.
(c)[2]
Describe the energy transfers from the heavy hammer to the metal rod. Your response should mention energy stores and also the transfers between energy stores.
Worked solution & mark scheme
This 9-mark question has a full step-by-step worked solution and mark scheme. One marking point: “mass is found by dividing weight by gravitational field strength (W ÷ g or W ÷ 9.8)” …