science 5 give 3 example each of the ff. heat transfer 1.convection w 2.conduction 3.radiation
Answer (1)
Answer: Here are three examples for each type of heat transfer: 1.Convection- Boiling Water: When you heat a pot of water on the stove, the hot water at the bottom of the pot rises to the top, and the cooler water from the top sinks to the bottom, creating a convection current.- Air Circulation in a Room: A heater warms the air in a room, causing the warm air to rise and the cooler air to sink, creating a circulation pattern that distributes the heat.- Ocean Currents: Warm water from the equator moves towards the poles, while cooler water from the poles moves towards the equator, creating large-scale ocean currents. 2. Conduction- Touching a Metal Spoon in Hot Soup: When you touch a metal spoon that's been in hot soup, heat is transferred from the soup to the spoon and then to your hand.- Ironing Clothes: The heat from the iron is transferred directly to the fabric of the clothes through direct contact, helping to remove wrinkles.- Cooking on a Stovetop: When you place a pan on a stove, heat is conducted from the burner through the pan and into the food. 3. Radiation- Sunlight Warming the Earth: The Sun radiates heat and light through space, which warms the Earth when it reaches us.- Feeling Warm from a Fire: When you sit close to a campfire, you feel warmth on your skin even though there’s no direct contact with the flames. This is because of infrared radiation emitted by the fire.- Heat from a Light Bulb: A light bulb emits light and heat radiation, which you can feel when you are close to it, even if you are not touching the bulb.
