Category: Physics

What Colour is the Centre of a sunflower? yellow How does a sunflower represent you? Because of the myth of Clytie and Apollo, the sunflower most commonly means adoration and loyalty. However, sunflower meanings can vary across cultures. In China, people associate sunflowers with long life, good fortune, and vitality. What is special about a […]

What are the advantages and disadvantages of field research? Field research/Primary research Advantages Disadvantages Only firm that collects data has access to it Expensive to collect Collected for a specific purpose Time consuming What are three examples of field research? Three types of qualitative field research methods are described here that focus on capturing lived […]

Can rubber be stretched? The ability to stretch is what we call elasticity (elasticity is the noun, elastic is the verb). Rubber is elastic because the chemical bonds that hold it together can store energy in the form of tension and allow the rubber to stretch, Beyond that I don’t think I’m qualified to explain. […]

Which mixture can you separate using magnet? Water Soluble Iron is magnetic and the other two not, which means a magnet could be used to attract the iron filings out of the mixture, leaving the salt and sand. Salt is water soluble, while sand is not. This means the two can be mixed in water […]

What is least gravitational potential energy? When the planet is closest to the Sun, speed v and kinetic energy are the highest, and gravitational potential energy is the lowest. When the planet moves farther away, the speed and kinetic energy decrease, and the gravitational potential energy increases. What is SI unit of gravitational potential? The […]

What are the three levels of categorization? Class inclusion and degree of specificity manifest themselves in three levels of categorization – namely the superordinate level, the basic level and the subordinate level. What is a basic level concept? The “basic level”, according to experiments in cognitive psy- chology, is the level of abstraction in a […]

Do you need planning permission to install a wind turbine? A wind turbine installed as a stand-alone installation: One turbine is considered permitted development and the property must not have an Air Source Heat Pump installed already. Otherwise you need to ask for planning permission. The highest part of the wind turbine blade must not […]

How do you know if three forces are in equilibrium? The object is a point on a string upon which three forces were acting. See diagram at right. If the object is at equilibrium, then the net force acting upon the object should be 0 Newton. Thus, if all the forces are added together as […]

What causes chromatic aberration quizlet? Chromatic aberrations are caused by dispersion in optical materials which is the variation in the refractive index by ____________________________. The refractive index is _______________________ for shorter wavelengths then long wavelengths. How many elements does an achromatic lens have? An achromatic lens, also referred to as an achromat, typically consists of […]

What is the most important factor that makes a city sustainable? Priorities of a sustainable city include the ability to feed itself with a sustainable reliance on the surrounding natural environment and the ability to power itself with renewable sources of energy, while creating the smallest conceivable ecological footprint and the lowest quantity of pollution […]