Category: Physics

Does higher frequency mean better sound? The answer to this question is clearly no. You might suspect, that the higher the frequency, the louder we perceive a noise, but frequency does not tell us how loud a sound is. Intensity or loudness is the amount of energy of a vibration and is measured in decibels […]

What makes a gun so powerful? The momentum imparted to the bullet by the gun is what makes a gun able to do so much damage. The momentum of an object equals its mass times its velocity. The momentum of an object, and therefore its ability to cause destruction, can be increased by making the […]

Does a chemical reaction occur when boiling water? Answer and Explanation: No, boiling water is NOT a chemical reaction, but it is a physical change. When water, H2 O, is in liquid form, it can be heated to a boil. Is Steam a chemical reaction? A physical reaction causes the matter to shift shape or […]

Is monoculture good or bad? Higher Revenues. By growing monoculture plants, farmers usually benefit from higher profits. For example, cultivating a single kind of crop that is best suited to development in specific climate conditions, allows the farmer to get better yields and, therefore, get higher income. Is monoculture farming sustainable? And the approach to […]

How hard is 30 HRC? 30 HRC is the hardness of the steel. It’s not a type of steel. That being said, 30 HRC is atrociously soft. Its edge would dull very quickly if you used it to cut anything. Which is harder HRB or HRC? The Rockwell C scale is usually abbreviated HRC (Hardness […]

How is flux calculated? The total of the electric flux out of a closed surface is equal to the charge enclosed divided by the permittivity. The electric flux through an area is defined as the electric field multiplied by the area of the surface projected in a plane perpendicular to the field. How does the […]

Which best describes the type of bond shown? Answer : The correct option is, (D) an covalent bond between the atoms. What produces an ionic bond? Ionic bond, also called electrovalent bond, type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound. Such a bond forms when the valence […]

What forces act on a ball? The forces are the weight, drag, and lift. Lift and drag are actually two components of a single aerodynamic force acting on the ball. What kind of force is wind? In summary, the wind is controlled by the pressure gradient force (differences in barometric pressure), the Coriolis Force and […]

What happens to capacitance if distance is increased? Capacitance is directly proportional to the electrostatic force field between the plates. This field is stronger when the plates are closer together. Therefore, as the distance between the plates decreases, capacitance increases. Therefore, as the dielectric constant increases, capacitance increases. Is capacitance proportional to distance? Capacitance (C) […]

Is displacement a scalar quality? No, Displacement is a vector quantity as the direction of Displacement can be found. On the other hand Distance is a scalar quantity. Is pushing on a wall doing work? Work is said to be done when force is applied on an object and it gets displaced from its initial […]