The image below shows a sphere which is at a much higher temperature than its surroundings.Energy is transferred from the sphere to its surroundings.The surface of the sphere is coated with four different colours. The colours are: matt black, shiny black, matt white and shiny silver.The initial and final temperatures of the surroundings, after 5 minutes, are recorded and displayed in the table.Which surface coating is shiny silver?ACBD

Why are car covers silver?Light, shiny surfaces reflect more IR away from the car, keeping it cooler.Light, shiny surfaces reflect more IR towards the car, keeping it warmer.Light, shiny surfaces reflect more IR towards the car, keeping it cooler.Light, shiny surfaces reflect more IR away from the car, keeping it warmer.

Why does loft insulation have a layer of silver foil?Light, shiny surfaces reflect more IR away from the loft, keeping it warmerLight, shiny surfaces reflect more IR away from the loft, keeping it coolerLight, shiny surfaces reflect more IR towards the loft, keeping it coolerLight, shiny surfaces reflect more IR towards the loft, keeping it warmer

Answer in one word: 1. Which metal is liquid at room temperature other than mercury? [1] _______________________________________________________________  2. Which nonmetal is lustrous and shiny? [1] _______________________________________________________________  3. Which nonmetal is good conductor of Electricity? [1] _______________________________________________________________  4. Which Metals can be cut with Knife? [1] _______________________________________________________________  5. Which Metals have very low melting and boiling point? [1] _______________________________________________________________ _______________________________________________________________ 6. Which nonmetal is liquid at room temperature? [1] _______________________________________________________________7. Which is the hardest element known to mankind [1] _______________________________________________________________ 8.  Sodium and Potassium are usually kept in which solvent? [1] _______________________________________________________________ 9. Some elements show property of both metals and non-metals [1] _______________________________________________________________ 10. The damage caused to metals due to the reaction of metals with oxygen, moisture, carbon dioxide etc. [1] _______________________________________________________________ 11. A pencil lead is made up of Non-Metal called [1]

The color of a star is an indicator of its _____.*compositioninner temperaturedistance from earthsurface temperature

Glass surfaces can be coated with a(n) ____ that is fired at high temperatures.Group of answer choicespatterned finishceramic fritetching materialtint