How the ultrasonic sound is created? Crystals of materials such as quartz vibrate very fast when electricity is passed through them—an effect called “piezoelectricity.” As they vibrate, they manipulate the air around them and the fluids they come in contact with, producing ultrasound waves. Does ultrasonic facial really work? An Ultrasonic Facial is a gentle, […]
What is Atom give two examples?
What is Atom give two examples? Many atoms consist of a positively charged nucleus consisting of protons and neutrons surrounded by a cloud of electrons charged negatively. An atom is any particle of matter at its most basic level which contains at least one proton. Here are some examples of the atoms: hydrogen (H) neon […]
What are the key features of experimental research?
What are the key features of experimental research? True experiments have four elements: manipulation, control , random assignment, and random selection. The most important of these elements are manipulation and control. Manipulation means that something is purposefully changed by the researcher in the environment. What are the unique characteristics of an experimental research method? The […]
What are the uses of ATP?
What are the uses of ATP? ATP is consumed for energy in processes including ion transport, muscle contraction, nerve impulse propagation, substrate phosphorylation, and chemical synthesis. These processes, as well as others, create a high demand for ATP. What is the best example of chemical work? What is the best example of chemical work? Lactate […]
When water boils its temperature remains the same?
When water boils its temperature remains the same? When water boils its temperature remains constant. It is because of latent heat. The heat given to the system is spared for phase transition of water. The heat given to the system is absorbed as latent heat. When a liquid boils its temperature remains the same so […]
What are the 3 principles of sports nutrition?
What are the 3 principles of sports nutrition? THE PRINCIPLES OF SPORTS NUTRITION. Presented by: Kathy Wilson, RD LHS Family and Consumer Science Teacher. Provide fuel for your muscles. Aim for a well-balanced diet: Consume a variety of whole grains, vegetables, and fruits; lean protein sources; and healthy fats. • vegetables. • and beans. What […]
What are 2 factors which the maximum kinetic energy of the emitted photoelectrons depends upon?
What are 2 factors which the maximum kinetic energy of the emitted photoelectrons depends upon? The two factors affecting maximum kinetic energy of photoelectrons are the frequency of the incident radiation and the material on the surface. Does kinetic energy depend on intensity? (a) The kinetic energy of any single emitted electron increases linearly with […]
What is the 4 types of galaxies?
What is the 4 types of galaxies? In 1936, Hubble debuted a way to classify galaxies, grouping them into four main types: spiral galaxies, lenticular galaxies, elliptical galaxies, and irregular galaxies. Can you identify a galaxy? Astronomer Edwin Hubble, after whom the space telescope is named, classified galaxies according to shape. The Hubble scale chart […]
What four pieces of evidence does an element box tell you about an element?
What four pieces of evidence does an element box tell you about an element? Each square on the periodic table gives at minimum the name of the element, its symbol, atomic number and relative atomic mass (atomic weight). Why did Mendeleev leave gaps in periodic table? Mendeleev left gaps in his table to place elements […]