What does of a cmp machine does it represent? Name the following parts in the diagram. Name two examples of this machine.

Here's the solution for questions 1, 2, 3, and 4: Question 1: a) Step 1: Identify the simple machine from the visible part of the diagram. The diagram shows a triangular shape with a block on top, which represents an inclined plane. The class of simple machine is an: Inclined plane b) Step 1: Observe the diagram for labeled parts. The parts of the inclined plane are not labeled in the provided image. c) Step 1: Provide two examples of an inclined plane. Two examples of this machine are: Ramp Slide Question 2: a) Step 1: State the energy changes for each scenario. (i) When a torch is switched on: Chemical energy changes to light energy. (ii) An orange falls from a tree: Gravitational potential energy changes to kinetic energy. b) Step 1: Name two apparatuses for measuring mass and volume. (i) Apparatuses used to measure mass: Beam balance and electronic balance. (ii) Apparatuses used to measure volume: Measuring cylinder and burette. Question 3: a) Step 1: List three physical properties of metals. Three physical properties of metals are: They are malleable (can be hammered into sheets). They are ductile (can be drawn into wires). They are good conductors of heat and electricity. b) Step 1: Explain why separating iron filings and sulfur after heating is difficult. It is difficult to separate iron filings and sulfur after heating because they undergo a chemical reaction to form a new compound, iron(II) sulfide. This new compound has different properties from the original elements and cannot be separated by simple physical methods. Question 4: a) Step 1: State two ways human activities affect the environment. Two ways by which man's activities affect the national environment are: Deforestation, which leads to habitat destruction and soil erosion. Pollution (e.g., air pollution from industrial emissions, water pollution from improper waste disposal). b) Step 1: Describe the set-up for separating iodine crystals and sand. The separation of iodine crystals and sand is achieved through sublimation. The mixture is heated gently, causing the solid iodine to turn directly into a gas. A cold surface (like an inverted funnel with ice on top) is placed over the mixture, where the iodine gas cools and re-sublimes back into solid crystals, leaving the sand behind in the original container. That's 2 down. 3 left today — send the next one.