Category: Physics

Is jumping a normal force? When we jump, the chemical energy in our muscles get converted to kinetic energy that exerts a force on the ground (that using Newton’s 3rd law), will trigger a reaction that will ‘push’ us up- and thus a jump. This resultant normal force = Mass x Distance of jump. Is […]

What is dependent and independent variable in regression? The outcome variable is also called the response or dependent variable, and the risk factors and confounders are called the predictors, or explanatory or independent variables. In regression analysis, the dependent variable is denoted “Y” and the independent variables are denoted by “X”. How do you know […]

What is the difference between tables charts and graphs? Same, but Different Charts present information in the form of graphs, diagrams or tables. Graphs show the mathematical relationship between sets of data. Graphs are one type of chart, but not the only type of chart; in other words, all graphs are charts, but not all […]

What is the error in saying the source of electrons? The drift velocity is the average speed of the electrons as they flow through an electric circuit. What is the error in saying the source of electrons in a circuit is the battery or generator? The source of the electrons in a circuit is the […]

Does specific heat depend on temperature? Therefore specific heat does not depend on temperature. What are the three factors affect the heat transfer that is necessary to change an object’s temperature? Experiments show that the transferred heat depends on three factors—the change in temperature, the mass of the system, and the substance and phase of […]

Is Si a English word? Meaning of SI in English. abbreviation for Système International: the international system of units used for scientific measurements, with standard base units such as the meter and the kilogram: The SI unit of electric current is the ampere. What can Si stand for? Système international What is the medical term […]

How do coaches get respect? Getting players on your team to respect you as their new coach takes work, but these tips will make it easier. Aim to motivate, not intimidate. Coach the person, not just the athlete. Be fair and true to your word. Be professional. Win the parents. How do you know if […]

Can I ask a Favour from you? Asking for a favor refers to asking someone to do something for you. Use these phrases to politely ask for a favor. When someone asks you for a favor, you’ll have to either grant it (say yes) or refuse it (say no). Pay special attention to the form […]

What does the Omega symbol stand for? One is uppercase, and the other is lowercase. Omega (Ω) is the 24th and the last letter in the Greek alphabet. When O precedes mega (Ωμέγα), it virtually means “Great End” since, as we said, Omega is the last Greek letter. Is Ohm and omega the same? The […]

What are the 4 components of body mechanics? Elements of Body Mechanics It involves the basic elements of body alignment (posture), balance, and coordinated movement. What are the 6 principles of body mechanics? Maintain Proper Body Alignment. Tuck in your buttocks. Pull your abdomen in and up. Keep your back flat. Keep your head up. […]