Jawapan Buku Teks Fizik Tingkatan 4 Kssm Aktiviti 13 Work Work Apr 2026

Work is defined as the product of the force applied to an object and the displacement of the object in the direction of the force. Mathematically, work (W) is represented by the equation:

A 5 kg object is lifted to a height of 2 m above the ground. Calculate its gravitational potential energy. Work is defined as the product of the

GPE = m × g × h

First, calculate the work done:

Then, calculate the efficiency:

Efficiency is a measure of how much of the input energy is converted into useful work. It is calculated using the equation: calculate the work done: Then

Then, calculate the efficiency: