This physics problem tests your understanding of fundamental physical laws and their applications. The step-by-step solution below breaks down the problem using relevant equations and physical reasoning.
ScanSolve AI Answer
Here are the solutions to the questions: 1. (a) Give the S.I. units of the following: (i) Mass: The S.I. unit of mass is the kilogram. Kilogram (kg) (ii) Power: The S.I. unit of power is the Watt. Watt (W) (iii) Force: The S.I. unit of force is the Newton. Newton (N) (iv) Work: The S.I. unit of work is the Joule. Joule (J) 1. (b) List four forms of energy: (i) Light energy (ii) Sound energy (iii) Electrical energy (iv) Heat energy 1. (c) A body of 25 kg falls from a height of 6 m and comes to rest. Calculate its potential energy (acceleration due to gravity = 10 m/s²): Step 1: Identify the given values. Mass (m) = 25 kg Height (h) = 6 m Acceleration due to gravity (g) = 10 m/s^2 Step 2: State the formula for potential energy. Potential Energy (PE) = mgh Step 3: Substitute the values into the formula and calculate. PE = (25 kg) × (10 m/s^2) × (6 m) PE = 250 N × 6 m PE = 1500 J The potential energy of the body is 1500 J. 2. (a) Define the following: (i) Tissue: A tissue is a group of similar cells that work together to perform a specific function. (ii) Organ: An organ is a collection of different tissues grouped together to perform a specialized function. 2. (b) Name two tissues and two organs found in the human body: (i) Two tissues: 1. Muscle tissue 2. Nervous tissue (ii) Two organs: 1. Heart 2. Lungs Drop the next question 📸