Q. What is Vaporization or Boiling Top Answer Solution:The process in which a substance in the liquid state changes to a vapour (gaseous) state at a fixed temperature is called vaporisation or boiling. The fixed temperature at which a liquid…
Q. What is Melting or Fusion? Top Answer Solution:The process in which a substance in solid state changes into liquid state at afixed temperature is called melting or fusion. The fixed temperature at which asolid melts into a liquid are…
Q. Reasons for using mercury in thermometers. Top Answer Solution:Reasons for using mercury in thermometers. Related Links
Q. Differences between conduction, convection and radiation. Top Answer Solution:Differences between conduction, convection and radiation. Conduction of heat Convection of heat Thermal radiation 1. Convection requires a medium for heat transfer but there is no actual motion of medium particles…
Q. The loudness level of some characteristic sounds. Top Answer Solution:The loudness level of some characteristic sounds. Source of sound Loudness level in decibels Sensation of sound 1. Rustling of tree leaves 10 Very very faint sound 2. Whisper 20…
Q. Differences between musical sound and noise. Top Answer Solution:Differences between musical sound and noise. Musical sound Noise 1. Musical sound produces a pleasant effect in our ears. 1. Noise produces a jarring effect in our ears. 2. It is…
Q. Difference between Speed and Velocity. Top Answer Solution:Difference between Speed and Velocity. Speed Velocity 1. The rate at which an object covers distance. 1. The rate at which an object changes its position in a specific direction. 2. Speed…
Q. Differences between distance covered and displacement. Top Answer Solution:Differences between distance covered and displacement. Distance Covered Displacement 1. It is the actual length of a path covered by a moving object irrespective of the direction of motion. 1. It…
Q. Differences between mass and weight. Top Answer Solution:Differences between mass and weight. Mass Weight 1. The mass is the quantity of matter present in an object. 1. The weight is the force with which an object is attracted by…
Q. Comparison of Dalton’s atomic theory and modern atomic theory. Top Answer Solution:Comparison of Dalton’s atomic theory and modern atomic theory. Dalton’s atomic theory Modern atomic theory 1. Atoms are indivisible particles. 1. Atoms are divisible into sub-atomic particles like…
