What is the standard SI unit used to measure the density of a substance?, g/cm3, kg/m3, kg/m2, g/m3, Which of these instruments is most commonly used to measure the volume of an irregular liquid directly?, Measuring cylinder, Vernier Calliper, Metre scale, Physical Balance, Sound is a form of energy produced due to which of the following physical phenomena?, Heating, Vibrations, Cooling, Refraction, Through which of these states of matter can sound travel the fastest?, Air, Water, Steel, Vaccum, If a solid block floats on water, what can be correctly inferred about its density?, It is exactly equal to 1000 kg/m3, It is greater than 1g/cm3, It is less than 1g/cm3, It is exactly zero, Why does a ship made of iron float on water, while an iron nail sinks?, The nail has a hollow design enclosing air., Iron nail does not experience any upthrust., The ship is lighter than the iron nail., The average density of the ship is less than that of water., Why is sound completely unable to travel through outer space or a vacuum?, It requires a material medium to propagate., Space is too cold for sound waves., Sound waves cannot travel long distances., There is too much light in space., If the frequency of a tuning fork increases, what happens to the pitch of the sound?, The pitch remains unchanged., The pitch decreases, The sound becomes completely silent., The pitch increases., Which characteristic of sound allows you to distinguish between a guitar and a piano when they play the exact same note?, Quality or Timbre, Loudness, Pitch, Frequency, If a student wants to reduce the echoes in a large empty auditorium, which material should they use to cover the walls?, Polished marble tiles, Flat glass sheets, Heavy curtains or fiberglass rugs, Smooth steel panels, A piece of iron has a mass of 156g and occupies a volume of 20cm3. Calculate its density in g/cm3., 7.8 g/cm3, 0.128 g/cm3, 3120 g/cm3, 78 g/cm3, A block of wood weighs 400 kg and has a total volume of 0.5 m3. Find its density in SI units (kg/m3), 200 kg/m3, 800 kg/m3, 0.00125 kg/m3, 400.5 kg/m3

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