Category: Physics

What happens when an electron drops to a lower energy level? An electron can be excited when its absorbs energy from electromagnetic radiation. An excited electron can fall to a lower energy level. When this happens, energy is lost as electromagnetic radiation. Different changes in energy level cause the emission of different frequencies. What causes […]

What does the shape of a histogram tell you about the data? Uniform: A uniform shaped histogram indicates data that is very consistent; the frequency of each class is very similar to that of the others. The mean of right-skewed data will be located to the right side of the graph and will be a […]

What is the most common form of depression? Six common depression types Major depression. The classic depression type, major depression is a state where a dark mood is all-consuming and one loses interest in activities, even ones that are usually pleasurable. Persistent depressive disorder. Bipolar disorder. Seasonal affective disorder (SAD). Disclaimer: Which celebrities are depressed? […]

Do amino acids have side effects? Side Effects When taken by mouth: Branched-chain amino acids are POSSIBLY SAFE when taken by mouth appropriately for up to 2 years. Some side effects are known to occur, such as fatigue and loss of coordination. What are the effects of too much amino acids? When your body has […]

Which of the following is an assumption of the molecular clock? The “molecular clock” method assumes that changes in DNA accumulate at approximately constant rates over time. One explanation is that species might undergo genetic changes long before those changes are reflected in the body plan. What does the molecular clock used to determine how […]

What is phase difference measured in? Phase difference: The time interval by which a wave leads by or lags by another wave is called “Phase difference” or “Phase angle”. It is defined by ‘Φ’. The phase angle is measured in “Radians / Sec” or “Degrees / Sec” and the phase of a complete cycle is […]

What is the process that converts physical energy? Transduction: It is the biological process in which any external physical stimuli is received and relayed from one part of the body to another part. During this process energy i.e stimuli is converted into electro chemical stimuli. What is the first step in sensation for some sensory […]

What are the three main resources needed for basic human development? The significance of food, water and energy to economic and social well-being. There are natural resources that are essential to human survival, these being food and water, but if we add energy to that list we have the resources that are fundamental to human […]

How do you calculate daily effort? For example, if you spend 3 hours a day working on the fence, the total duration would be 10 days (30 hours of total effort divided by 3 hours / day). But if, for example, a friend helps every day, then you would have two resources working for 3 […]

What events occurred during the space race select 3? The Soviet Union launched Salyut. The United States launched Skylab. The United States launched Explorer 1. Which object does NASA plan to design and use to land four astronauts to Mars? Orion will carry astronauts into deep space, and then return them home safely to Earth. […]