Category: Physics

Why don t Rockets go straight up? Why do rockets curve when they fly into space instead of going straight up? A: If a rocket just flew straight up, then it would fall right back down to Earth when it ran out of fuel! Rockets have to tilt to the side as they travel into […]

What is the principle of Electroscope? The working principle of an electroscope is based on the atomic structure of elements, charge induction, the internal structure of metal elements and the idea that like charges repel each other while unlike charges attract each other. What is the working of an Electroscope? ELECTROSCOPE : Electroscope is used […]

What are some examples of interval data? Examples of interval data includes temperature (in Celsius or Fahrenheit), mark grading, IQ test and CGPA. These interval data examples are measured with equal intervals in their respective scales. Interval data are often used for statistical research, school grading, scientific studies and probability. How do you know if […]

What does it mean when the two runners graphs cross? What does it mean when the two runners’ graphs cross? When the two runners graphs cross this means that in the graph above that runner 2 was behind but caught up and ran past runner 1 beating him to the finish line (40 meters). How […]

Is FCC stronger than BCC? FCC and BCC also have many different measurements within the unit cell, as shown in the table below. Additionally, FCC metals tend to be more dense, more stable at high temperatures, and more ductile than BCC metals. This comes from their packing arrangement and slip systems. Why is it called […]

What is the formula of path difference? The general formula for destructive interference due to a path difference is given by δ = (m + 1/2) λ / n where n is the index of refraction of the medium in which the wave is traveling, λ is the wavelength, δ is the path difference and […]

What is the density of oxygen in kg m3? 1141 kg/m3 What is the density of gold in kg m3? 19,300 kg/m3 How heavy is 1m3 gold? One cubic meter of gold weighs roughly 19.3 metric tons, or about 42,549.22 English pounds. Is gold high in density? With a density of 19.32 grams per cubic […]

What is the advantages and disadvantages of renewable energy? Disadvantages of renewable energy resources Energy Resource Advantages Disadvantages Hydroelectric power stations Clean and cheap to run Expensive to set up and output could be affected by drought Solar cells Clean and cheap to run Not always sunny and output does not always outweigh initial cost […]

What are the 2 advantages of using solar cooker? 10 Benefits of Solar Cooking Solar cooking is free. Solar cooking is quick and easy. Food cooked with a solar cooker is healthy. Solar cooked food tastes amazing! Solar cookers make no noise. Cooking with sunshine is kind to the environment. Solar cooking ovens are portable. […]

What is the difference between rate constant and rate of reaction? A rate constant, k, is a proportionality constant for a given reaction….Differences between the rate of reaction and constant: Rate of Reaction Rate Constant It depends upon the concentration of the reactant It is independent of the concentration of the reactant. What is relation […]