Category: Physics

Why do plates move apart? The plates can be thought of like pieces of a cracked shell that rest on the hot, molten rock of Earth’s mantle and fit snugly against one another. The heat from radioactive processes within the planet’s interior causes the plates to move, sometimes toward and sometimes away from each other. […]

Can cause a change in motion? A force is a push or pull that can cause an object to move, stop, or change speed or direction. 3. The greater the force, the greater the change in motion. Gravity (the earth’s pulling force) and friction (the force between two surfaces) are common forces that work against […]

How does an object get its weight? The weight of an object is the force of gravity on the object and may be defined as the mass times the acceleration of gravity, w = mg. Since the weight is a force, its SI unit is the newton. Density is mass/volume. Is the weight of an […]

What is plot area? Plot Area: The area which is surrounded by a boundary line (fencing) is called as Plot Area. In simple words, the total area which belongs to you in a city or town is termed as a Plot area. The term Plot area is majorly used in gated communities, townships and named […]

When can the water displacement method not be used? Water displacement method to determine volume of a solid can’t be used for all solids. The reason for this is some solids will float on the water. Therefore the object’s density is less dense than the water. 3. Why is the displacement method used? The displacement […]

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 […]

Are Megalodons Still Alive 2020? Megalodon is NOT alive today, it went extinct around 3.5 million years ago. Go to the Megalodon Shark Page to learn the real facts about the largest shark to ever live, including the actual research about it’s extinction. What dinosaur can kill a Megalodon? stand the best chance, due to […]

How do you calculate eyepiece magnification? You can calculate your telescope’s magnification by dividing the focal length of the lense by the focal length of the eyepiece. For example, a 450mm lense divided by a 10mm eyepiece equals a magnification of 45X. What is the magnification of your eyepiece? The eyepiece magnification of the eyepieces […]

What is a mathematical phrase? A mathematical phrase is a set of words or a combination of words and numbers that can be written as a mathematical expression. An expression is a mathematical phrase that combines numbers and/or variables using mathematical operations. Expressions represent a value. An example of an algebraic expression is 9 + […]

What affects NPSH? CHANGES THAT AFFECT NPSH Source Liquid Level – Changes in the liquid level feeding to the pump will affect NPSH. A raised liquid level in the tank will increase NPSHA, while a lower than expected liquid level will cause NPSHA issues. How can we reduce Npsha? The NPSHr can be reduced through […]