Category: Physics

What are the stages of reflection? Stages. The traditional stages of reflection are self-awareness, description, critical analysis, synthesis, and evaluation. This is the cognitive model of learning by reflection. What are the reflective models? One of the most famous cyclical models of reflection leading you through six stages exploring an experience: description, feelings, evaluation, analysis, […]

Is fungus a virus or bacteria? Fungi are more complicated organisms than viruses and bacteria—they are “eukaryotes,” which means they have cells. Of the three pathogens, fungi are most similar to animals in their structure. What’s the difference between a parasite and a virus? Bacteria and viruses can live outside of the human body (such […]

Do we see with our eyes or brain? Our eyes do a really good job of capturing light from objects around us and transforming that into information used by our brains, but our eyes don’t actually “see” anything. That part is done by our visual cortex. Our eyes being slightly apart creates an image that […]

Were there any omnivorous dinosaurs? Only a few of the known dinosaurs were omnivores (eating both plants and animals). Some examples of omnivores are Ornithomimus and Oviraptor, which ate plants, eggs, insects, etc. Does not eating meat make your skin better? Beyond just helping with stubborn pimples, going vegan can also improve your complexion, said […]

How do you remove a stuck metal lid? Warm water Alternatively, you could fill a bowl with hot water and place the jar upside down in the water, leaving it there for around 30 seconds. The hot water will help expand the metal lid (more so than the glass), making it easier to remove. Does […]

What is SI unit of sound? The SI unit of sound pressure is pascal (Pa). Decibel (dB) is a relative unit of measurement widely used in acoustics. However, the dB is not a unit in the sense that a metre is a unit of length. The decibel is a logarithmic unit used to describe a […]

What happens to the particles when a liquid boils? Boiling. If a liquid is heated the particles are given more energy and move faster and faster expanding the liquid. As the liquid gets warmer more particles have sufficient energy to escape from the liquid. Eventually even particles in the middle of the liquid form bubbles […]

What frequency means? Frequency is the number of occurrences of a repeating event per unit of time. It is also referred to as temporal frequency, which emphasizes the contrast to spatial frequency and angular frequency. Frequency is measured in hertz (Hz) which is equal to one event per second. What happens to pitch when frequency […]

What frequency is 75 meters? All Frequencies in MHz 160 Meters: 1.885, 1.900, 1.945, 1.985 75 Meters: 3.825, 3.870 (West Coast), 3.880, 3.885 40 Meters: 7.290, 7.295 20 Meters: 14.286 Is 80 meters upper or lower sideband? Lower sideband (LSB)–The common single-sideband operating mode on the 40, 80 and 160-meter amateur bands. Upper sideband (USB)–The […]

How high can a balloon go? Because density is altered by altitude, the helium balloon can reach a height of 9,000 meters, or 29,537 feet. Anything higher than this altitude will cause the helium within the balloon to expand and the balloon to pop. What is the common unbalanced force acting on an object in […]