Category: Physics

What is the highest energy level that contains electrons This is called the highest occupied energy level? Valence electrons Why is energy of an electron more in higher orbits? Kinetic and potential energy of atoms result from the motion of electrons. When electrons are excited they move to a higher energy orbital farther away from […]

What do you call the start of a stream? source. The source is the beginning of a stream or river. What is the difference between a creek and a stream? Creek is a flowing body of water. Stream is any body of flowing fluid. It can be water, lava, wind, etc. Is swimming in a […]

How many amps does a 100 watt bulb use? 0.90 Amps What is the current in the 10 Ω resistor? If the resistor is exactly 10 Ω, the current is 2 A. What is the current in the 20 resistor? Explanation: I=V/R. Since in parallel circuit, voltage is same across all resistors. Hence across the […]

Can an object move in a circular path with zero acceleration? It is possible to move on a curved path with zero acceleration. What is the force that keeps a body in circular motion? Any net force causing uniform circular motion is called a centripetal force. The direction of a centripetal force is toward the […]

What is the difference between a dog tick and a deer tick? The major difference between these two tick species is that the deer tick has black legs and is an overall darker, more black color; while the brown dog tick has light brown legs and a brown body. Deer ticks also tend to be […]

What happens if you hold a compass at the North Pole? Magnetic north is actually in northern Canada, and that is where compasses point to. Now, on to your question…if you were standing exactly on top of the magnetic north pole, your compass would point nowhere in particular since the place it is used to […]

How far out should a ladder be from a wall? Use the 4-to-1 rule: Make sure the ladder is 1 foot away from the wall for every 4 feet that the ladder rises. For example, if the ladder touches the wall 16 feet above the ground, the feet/base of the ladder should be 4 feet […]

What are the disadvantages of fMRI? Disadvantages fMRI is expensive compared to other techniques and can only capture a clear image if the person stays still. Poor temporal resolution because of a 5-second lag between initial neural activity and image. May not truly represent moment-to-moment brain activity. What does an fMRI show psychology? A form […]

Which one of the following is not charged to the manufacturing account? Distribution expenses cover the cost of warehousing, transport, material handling e.t.c. It is a non-manufacturing cost and not part of production cost. Which account does a manufacturing company have that a service business does not have? Which account does a manufacturing company have […]

What does the latent heat of fusion represent? The latent heat of fusion is the enthalpy change of any amount of substance when it melts. When the heat of fusion is referenced to a unit of mass, it is usually called the specific heat of fusion, while the molar heat of fusion refers to the […]