Category: Physics

What is the actual name of a merry go round? carousel How dangerous are merry-go-rounds? Sometimes children get on and off the piece of equipment while it is rotating. These can be dangerous because it is hard for children to know how to get on and off while the merry go round is moving. It […]

Can I skip Masters and go straight to PhD? Typically, the path to a PhD begins with a Bachelors course and continues through a Masters degree. However, it is possible to skip a Masters and pass straight to a PhD degree. Can you go straight from a bachelor’s degree to a doctorate? In the United […]

What are the 5 non-renewable resources? Nonrenewable energy resources include coal, natural gas, oil, and nuclear energy. Once these resources are used up, they cannot be replaced, which is a major problem for humanity as we are currently dependent on them to supply most of our energy needs. What is good about non-renewable resources? The […]

How do you know if tubes are open or closed? Open and closed ends reflect waves differently. The closed end of a tube is an antinode in the pressure (or a node in the longitudinal displacement). The open end of a tube is approximately a node in the pressure (or an antinode in the longitudinal […]

What are the two main ways glomerular filtration rate can be adjusted? Increased blood volume and increased blood pressure will increase GFR. Constriction in the afferent arterioles going into the glomerulus and dilation of the efferent arterioles coming out of the glomerulus will decrease GFR. Hydrostatic pressure in the Bowman’s capsule will work to decrease […]

Do refracting telescopes have mirrors? Refracting telescopes use lenses to focus the light, and reflecting telescopes use mirrors. I’ll talk first about refracting ones. Refracting telescopes work by using two lenses to focus the light and make it look like the object is closer to you than it really is. Both lenses are in a […]

What are the rarest 2 pound coins? While the rarest £2 – the 2002 Commonwealth Games Northern Ireland coin – is worth up to £72 on eBay, other rare two quids usually fetch around £6-£8 when they are sold on. What two pound coins are worth money? The 10 most valuable and rare 50p and […]

Does time stop in a singularity? When you hit the singularity of a black hole, time stops for you simply because you’re annihilated. This is similar to what happens at the big bang singularity: any observer would have been annihilated by the conditions of the early universe in which the temperature and density diverged to […]

What happens when two objects are charged by contact? When two neutral objects come into contact–especially in a dry environment–electrons can be knocked loose from one object and picked up by the other. The object that gains electrons becomes negatively charged, while the object that loses electrons becomes positively charged. What is an example of […]

What is the heart of the scientific process? Experimentation is the heart of science. Scientists ask questions, gather evidence, share ideas, and analyze data. In designing an experiment, the specific question (or questions) that the experiment is meant to answer must first be clearly identified. What are three different paths you can take to explore […]