1.7.4. Power
A subsection of Physics, 0625, through 1. Motion, forces and energy
Listing 10 of 51 questions
Define power. In the following list, tick the two boxes next to the two quantities needed to calculate the work done on an object. mass of the object force acting on the object speed of the object acceleration of the object distance moved by the object A lift in a high building transports 12 passengers, each of mass 65 kg, through a vertical height of 150 m in a time of 64 s. Calculate the power needed to transport the passengers through this height. power = The lift is driven by an electric motor. State a reason, other than friction, why the power supplied by the motor is greater than the power needed to transport the passengers.
0625_w15_qp_32
THEORY
2015
Paper 3, Variant 2
View
Questions Discovered
51