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Difference between optical and mechanical mouse?
A mechanical mouse has a ball & rollers on the bottom which moves the pointer. An optical mouse has a light instead, and you don't even need a mouse pad to use it.
How does the type of surface affect heating by radiation?
Dark matt surfaces absorb radiated heat much more easily than light-coloured shiny surfaces.
Is metal shiny?
Generally the fresh surfaces of metals are shiny.
Why does shiny surfaces absorbe more energy then dull surfaces?
Because, shiny surfaces reflect heat, they don't emit much heat and they don't absorb much heat!
With what do Africans associate shiny or smooth surfaces with?
Africans may associate shiny or smooth surfaces with cleanliness, wealth, success, or beauty. These surfaces are often seen as valuable and desirable.
Which description applies to matte surfaces?
Matte surfaces have a non-reflective finish, appearing dull and not shiny. They do not produce a glare or reflection of light, unlike glossy or shiny surfaces.
Does the shape of the object make any difference to how shiny it is?
Yes, the shape of an object can affect how shiny it appears. Curved surfaces may reflect light differently than flat surfaces, impacting the object's overall shininess. Additionally, the angles at which light hits the object can influence its shine.
Why The shiny surfaces reduces heat loss by?
Shiny surfaces reduce heat loss by reflecting thermal energy back into the space, preventing it from escaping. This is because shiny surfaces have low emissivity, meaning they emit less heat through radiation compared to dull surfaces. By reflecting heat back into the space, shiny surfaces help to maintain a warm environment and reduce the energy needed for heating.
Does the shape of an object make a difference to how shiny it is?
Yes, the shape of an object can affect how shiny it appears. Objects with smooth surfaces tend to be shinier because they reflect light more uniformly, while rough surfaces scatter light, decreasing the overall shininess. Additionally, the angle at which light hits the object can also influence how shiny it appears.
What are shiny surfaces?
Shiny surfaces reflect light and appear smooth and glossy. They often have a polished or reflective finish that creates a mirror-like effect. Materials like metal, glass, and polished wood can have shiny surfaces.
Is it true that shiny materials absorb radiant energy?
I believe that shiny surfaces reflect radiant energy.
Is shiny a good insulator?
No, shiny surfaces are not good insulators. Shiny surfaces are reflective and do not support the absorption and retention of heat, which is a characteristic of good insulators. Good insulators are materials with low thermal conductivity that trap heat effectively.
