Category: Physics

Why might a bright yellow solid form when two clear colorless liquids are mixed? Explanation: When two substances (can be aqueous or liquids) in solution react, they yield a solid and an aqueous compound. This is a double displacement reaction in which the solid is known as a precipitate. Can two solids react to form […]

Is a galaxy close to the Milky Way moving away from us slowly or quickly? As we look out into the Universe, we see galaxies moving away from us faster and faster. The more distant a galaxy is, the more quickly it’s moving away. To understand why this is happening, go and get a balloon […]

What happens when you shine a red light on a blue object? So what happens if you shine only red light onto a blue object? All of that red light gets absorbed and the blue object will seem to be dark, almost black. If you now shine a blue light onto that blue object all […]

How many miles will be traveled by at least 80 percent of the trucks? 39,900 miles How many miles can a trucker drive in a week? 3,000 miles How long can a truck driver drive before resting? Drivers can drive for up to 11 hours during the duty period. However, after driving for eight hours, […]

What triggers sweating? Sweating is your body’s mechanism to cool itself. Your nervous system automatically triggers your sweat glands when your body temperature rises. Sweating also normally occurs, especially on your palms, when you’re nervous. The most common form of hyperhidrosis is called primary focal (essential) hyperhidrosis. Where do humans sweat the most? The human […]

What are the four stages in the life cycle of a low mass star? Stars about the size of our sun go through the same first four stages as does any other star. They begin their lives as a nebula, then become a Protostar, eventually becoming a main sequence star and finally a red giant. […]

What are two examples of liquid? Examples of Liquids Water. Milk. Blood. Urine. Gasoline. Mercury (an element) Bromine (an element) Wine. What are two examples of a gas? Examples of Gases Hydrogen. Nitrogen. Oxygen. Carbon Dioxide. Carbon Monoxide. Water Vapour. Helium. Neon. What are the common gases? Common gases include Acetylene, Argon, Carbon Dioxide, Helium, […]

What two factors can make an object stable? The stability of an object is dependent on two factors: The base width of the object. The center of gravity. What are structures for Grade 3? A structure is a solid that has a shape, size, and purpose. It holds a load. Example: A tennis shoe is […]

How do you use the word use and used? Used to refers to something familiar or routine, as in “I’m used to getting up early for work,” or to say that something repeatedly happened in the past like “we used to go out more.” Use to typically occurs with did; “did you use to work […]

What is the thinnest liquid? Thanks to the “super material” graphene, a team of researchers managed to create one of the world’s thinnest layers of liquid. There’s now a new understanding of the word “wet” thanks to physicists who created the thinnest film of liquid ever. What is a viscous sauce? A sauce that runs […]