What is the importance of diffraction? Diffraction is a natural phenomenon and an important tool that helps scientists unravel the atomic structure of our world. How is a CD an example of diffraction? As the CD spins, the laser light illuminates various pits and lands simultaneously. When we bounce light off of the CD bottom, […]
What is the similarities and differences of independent and dependent?
What is the similarities and differences of independent and dependent? The independent and dependent variables are the two key variables in a science experiment. The independent variable is the one the experimenter controls. The dependent variable is the variable that changes in response to the independent variable. The two variables may be related by cause […]
What forms does water take through this cycle?
What forms does water take through this cycle? The water cycle shows the continuous movement of water within the Earth and atmosphere. It is a complex system that includes many different processes. Liquid water evaporates into water vapor, condenses to form clouds, and precipitates back to earth in the form of rain and snow. How […]
What size is a photon?
What size is a photon? In this way you could say the “size” of photon is basically the width of its wavelength. The wavelength of green light is about 500 nanometers, or two thousandths of a millimeter. The typical wavelength of a microwave oven is about 12 centimeters, which is larger than a baseball. How […]
Why is incomplete combustion bad?
Why is incomplete combustion bad? Incomplete combustion occurs when the supply of air or oxygen is poor. Water is still produced, but carbon monoxide and carbon are produced instead of carbon dioxide. The carbon is released as soot . Carbon monoxide is a poisonous gas, which is one reason why complete combustion is preferred to […]
What is the reading on the vernier calipers?
What is the relation between charge and mass?
What is the relation between charge and mass? The charge-to-mass ratio (Q/m) of an object is, as its name implies, the charge of an object divided by the mass of the same object. This quantity is generally useful only for objects that may be treated as particles. Why does oxygen need 2 electrons? Oxygen needs […]
Does hot water flow faster than cold?
Does hot water flow faster than cold? Molecules in a liquid have enough energy to move around and pass each other. Warm water has more energy than cold water, which means that molecules in warm water move faster than molecules in cold water. Does water move slower when cold? The molecules of cold water are […]
Can you use an electric motor as a generator?
Can you use an electric motor as a generator? Always use caution when working with electricity. Your permanent magnet electric motor can be used as a generator. All that needs to be done is to apply an external power source to spin the shaft of any permanent magnet electric motor and your motor becomes a […]
Why does my foot hurt when I kick a soccer ball?
Why does my foot hurt when I kick a soccer ball? There are a number of reasons which have been mentioned (e.g. air temperature affecting ball stiffness, kicking technique, possible injury). Another reason may be that your anatomy hasn’t developed to sustain kicking a ball. Think about how kickboxers can block with their shins. How […]