What is the relation between surface tension and surface energy? The attractive force of the molecules present at the surface of a liquid towards each other is called the surface tension of that liquid. Surface energy is the equivalent attractive force present between the molecules at the surface of a solid substance. What are the […]
What is the application of third law of thermodynamics?
What is the application of third law of thermodynamics? The third law of thermodynamics states that the entropy of a perfect crystal at a temperature of zero Kelvin (absolute zero) is equal to zero. Entropy, denoted by ‘S’, is a measure of the disorder/randomness in a closed system. All the atoms and molecules in the […]
Is a primary wave transverse?
Is a primary wave transverse? When seismic waves are first created, they travel outwards in all direction from their source. Body waves travel through the interior of the earth, and have two main types: P-Waves (Primary waves) are Longitudinal Waves. S-Waves (Secondary waves) are Transverse Waves. Do P or S waves cause more damage? S […]
Does positive and negative matter with lights?
What are the different columns called?
What are the different columns called? In the periodic table of elements, there are seven horizontal rows of elements called periods. The vertical columns of elements are called groups, or families. What three families are found in the center of the periodic table? The three families that are found in the center portion of the […]
Where does the dark go when you turn on the light?
Which is costly brass or bronze?
Which is costly brass or bronze? While all three contain copper, the percentage is far lower in Brass and Bronze than in pure copper as alloying elements are mixed in. This reduces the cost of brass and bronze. Bronze is usually more expensive than brass, partly due to the processes required to manufacture bronze. How […]
Can velocity be zero if acceleration is zero?
Can velocity be zero if acceleration is zero? When acceleration is zero then velocity of object can be zero or constant. The body continues to move with its velocity throughout. For e.g if a train is at rest then acceleration is zero and velocity remains zero. Why does velocity change direction zero? The velocity, that […]
What is a heterogeneous mixture?
What is a heterogeneous mixture? A heterogeneous mixture is a mixture in which the composition is not uniform throughout the mixture. A heterogeneous mixture consists of two or more phases. When oil and water are combined, they do not mix evenly, but instead form two separate layers. Each of the layers is called a phase. […]
How do you calculate waves?
How do you calculate waves? Wave speed is the distance a wave travels in a given amount of time, such as the number of meters it travels per second. Wave speed is related to wavelength and wave frequency by the equation: Speed = Wavelength x Frequency. This equation can be used to calculate wave speed […]