What is floating?
Q. What is floating? Top Answer Solution:Floating – An object will float on a liquid if its density is less than the density of the liquid. When an object is placed over a liquid whose density is more than the…
Category ICSE 7
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What is sinking?
Q. What is sinking? Top Answer Solution:Sinking – An object will sink in a liquid, if its density is more than the density of the liquid. When an object is placed over a liquid whose density is less than the…
Reasons for using mercury in thermometers
Q. Reasons for using mercury in thermometers. Top Answer Solution:Reasons for using mercury in thermometers. Related Links
Differences between conduction, convection and radiation
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…
The loudness level of some characteristic sounds
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…
Differences between musical sound and noise
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…
Difference between Speed and Velocity
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…
Differences between distance covered and displacement.
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…
Differences between mass and weight.
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…