Why is a lunar eclipse visible over a much larger area than a total solar eclipse?
A) Earth's shadow on the Moon can be seen from Earth's night side B) A smooth surface gives orderly specular […]
Every Day Science, Scientific Reasons
Scientific Reasons
Every Day Science, Scientific Reasons
Why is a rainbow rarely seen at noon when the Sun is high?
A) It spreads reflected rays and forms smaller images B) The rainbow's center lies opposite the Sun and the arc […]
Every Day Science, Scientific Reasons
Why is a ship more buoyant in seawater than in freshwater at the same displaced volume?
A) Seawater has no gravity B) Seawater is denser C) Salt destroys mass D) Freshwater has no pressure Answer: B […]
Every Day Science, Scientific Reasons
Why is a thermos bottle designed with a vacuum space?
A) It reduces conduction and convection across the gap B) It creates heat constantly C) It makes water weightless D) […]
Every Day Science, Scientific Reasons
Why is an echo delayed after the original sound?
A) Electromagnetic waves can carry encoded signals through air B) The open switch breaks the current path C) Reflected sound […]
Every Day Science, Scientific Reasons
Why is frost sometimes seen before liquid dew on a cold surface?
A) A compressor moves heat from colder space to warmer surroundings B) Water vapor can deposit directly as ice C) […]
Every Day Science, Scientific Reasons
Why is it warmer near the equator than near the poles on average?
A) There is less overlying air at higher elevation B) The Moon's gravity and Earth's rotation create tidal bulges C) […]
Every Day Science, Scientific Reasons
Why is sound heard less clearly through a closed double-glazed window?
A) Too much current can overheat wiring B) Rubber resists the flow of charge C) Separated panes and the air […]
Every Day Science, Scientific Reasons
Why is the Moon not eclipsed every full moon?
A) Rapid entry heats surrounding air and material B) Descending rock can contribute to melting above the plate C) Its […]
Every Day Science, Scientific Reasons
Why is the Moon’s appearance different through a month?
A) Refraction changes the direction of light at the boundary B) Refraction makes underwater light rays change direction C) Tiny […]