Category: Physics

What are the 5 models of Atom? Atomic models John Dalton’s atomic model. Plum pudding model. Rutherford’s model of the atom. Bohr’s model of the atom. Electron Cloud Model/Quantum Mechanics Model of Atom. Basic description of the quantum mechanical atomic model: Sources: What was the first atomic model called? Thomson atomic model What are the […]

Is Controlled burning good? A controlled burn is a wildfire that people set intentionally for a specific purpose. Well-thought out and well-managed controlled burns can be incredibly beneficial for forest management—in part because they can help stop an out-of-control wildfire. What is controlled burning method? Controlled burning, also known as prescribed burning, involves setting planned […]

How does the population affect water availability? The rise in population leads to higher demand for water for domestic, industrial, agricultural and municipal needs and also evacuation for waste materials. The most water scarce areas are typically those with few water resources, high population, and even higher population growth rates. What are the main sources […]

What does it mean when the two runners graphs cross? What does it mean when the two runners’ graphs cross? When the two runners graphs cross this means that in the graph above that runner 2 was behind but caught up and ran past runner 1 beating him to the finish line (40 meters). How […]

Will my pool pop out of the ground if I drain it? Inground pools made of concrete or gunite are susceptible to popping out of the ground if drainage is not done properly. Excessive ground water can cause this type of pool to “float” out of the ground when draining is occuring. Can you fix […]

How do I know if my carburetor is rich or lean? Typical symptoms of a rich mixture are: Poor fuel economy. Sluggish acceleration. Choke not needed from cold starts. Sooty or black spark plugs. Sooty or black muffler end pipes. Strong smell of gasoline when the machine is at idle. Uneven running (will often slow […]

What is the advantages and disadvantages of renewable energy? Disadvantages of renewable energy resources Energy Resource Advantages Disadvantages Hydroelectric power stations Clean and cheap to run Expensive to set up and output could be affected by drought Solar cells Clean and cheap to run Not always sunny and output does not always outweigh initial cost […]

What is the principle of Electroscope? The working principle of an electroscope is based on the atomic structure of elements, charge induction, the internal structure of metal elements and the idea that like charges repel each other while unlike charges attract each other. What is the working of an Electroscope? ELECTROSCOPE : Electroscope is used […]

What are the 2 steps of cell division? In eukaryotic cells, or cells with a nucleus, the stages of the cell cycle are divided into two major phases: interphase and the mitotic (M) phase. What are the 2 main difficulties a cell faces as it grows in size? Terms in this set (36) What are […]

How long does an overused muscle take to heal? For a mild strain, you may be able to return to normal activities within three to six weeks with basic home care. For more severe strains, recovery can take several months. In severe cases, surgical repair and physical therapy may be necessary. What is the longest […]