Everyday Science
Everyday Science MCQs With Answers
741 Everyday Science MCQs for CSS, PPSC, FPSC, NTS and entry-test preparation. Take a scored quiz instead →
An electric doorbell commonly produces its ringing sound using which basic electromagnetic working principle?
AA chemical reaction producing an audible pop
BA small internal combustion engine
CAn electromagnet repeatedly attracting a metal striker toward a bell or chime
DA rotating magnet generating sound waves directly
Unlike petrol engines, which use a spark plug to ignite fuel, diesel engines typically ignite their fuel through which method?
AAn external electric heating coil only
BThe heat generated by compressing air to a very high pressure
CA spark plug identical to petrol engines
DA chemical catalyst added to the fuel
What is an electromagnet, commonly used in devices like electric bells, motors, and industrial cranes?
AA temporary magnet created when electric current flows through a coil of wire, often wrapped around an iron core
BA magnet that only works underwater
CA magnet made purely from a rare naturally occurring mineral
DA permanent magnet that never loses its magnetism
Which metallic element is unique among metals for being in a liquid state at normal room temperature?
AAluminum
BMercury
CSodium
DIron
How does the location of Earth’s magnetic poles compare to the location of its geographic poles?
AThey are located at exactly the same points
BThey are located at noticeably different points and are not perfectly aligned
CEarth does not actually have magnetic poles
DThe magnetic poles are located at Earth's equator
Which non-metallic element is notable for being in a liquid state at normal room temperature, unlike most other non-metals?
ASulfur
BChlorine
CIodine
DBromine
The colorful natural light display known as the Aurora Borealis, or Northern Lights, is primarily caused by what phenomenon?
ASunlight refracting through ice crystals
BReflections of city lights off low clouds
CCharged particles from the sun interacting with Earth's magnetic field and atmosphere
DVolcanic activity beneath the polar ice caps
Which metal has the highest melting point of any metal and is commonly used for the filament inside traditional incandescent light bulbs?
AZinc
BAluminum
CCopper
DTungsten