Category: Physics

What are the 12 steps of the scientific method? Let’s build some intuition for the scientific method by applying its steps to a practical problem from everyday life. Make an observation. Ask a question. Propose a hypothesis. Make predictions. Test the predictions. Iterate. What type of question can the scientific method attempt to answer? Hypothesis […]

What is an example of atmosphere? Atmosphere is defined as the area of air and gas enveloping objects in space, like stars and planets, or the air around any location. An example of atmosphere is the ozone and other layers which make up the Earth’s sky as we see it. An example of atmosphere is […]

What two factors determine wave speed? Waves travel through a medium: A medium is any substance or region through which a wave is transmitted. The speed of a wave is dependant on four factors: wavelength, frequency, medium, and temperature. Wave speed is calculated by multiplying the wavelength times the frequency (speed = l * f). […]

What is velocity vs speed? Speed is the time rate at which an object is moving along a path, while velocity is the rate and direction of an object’s movement. Put another way, speed is a scalar value, while velocity is a vector. What is speed and agility? Speed is defined as the ability to […]

How do glasses use refraction? Lenses serve to refract light at each boundary. As a ray of light enters a lens, it is refracted; and as the same ray of light exits the lens, it is refracted again. Because of the special geometric shape of a lens, the light rays are refracted such that they […]

Is bullet proof glass expensive? Depending on the size and type of bullet-resistant glass, it can cost between $25 and $100 per square foot. Although polycarbonate plastic can bond with glass to resist bullets, paper towels can scratch its surface and ammonia-based window cleaning liquids will damage the material. Do ex presidents have Secret Service […]

What is the normal freezing point of water? 32 °F. What is the normal freezing? The normal freezing point is the temperature at which a substance melts (or freezes) at one atmosphere (760 torr = 760 mm Hg = 14.7 psi = 101.3 kPa) of pressure. How do you find the normal freezing point? Freezing […]

What wavelength are colors? A spectrally pure or monochromatic color can be produced by a single wavelength. For example, an orange color is associated with a wavelength of 600 nm….Nature of Color. Spectral region Range of wavelength in nm Subregion Visible 380-430 430-500 500-520 520-565 565-580 580-625 625-740 Violet Blue Cyan Green Yellow Orange Red […]

Does carbonation make you drunker? There are lots of alcoholic beverages out there and many of them pack a different punch. Carbonation increases pressure in the stomach, which helps to force alcohol into the bloodstream via the stomach lining. … Does mixing soda with alcohol get you drunk faster? But experts warn that alcohol mixed […]

Which of the following has low specific heat? Specific heat is how much heat energy is needed raise the temperature of a substance. Water has a very high specific heat. That means it needs to absorb a lot of energy before its temperature changes. Sand and asphalt, on the other hand, have lower specific heats. […]