What is a magnetic field how can the direction? the magnetic fields are the imaginary line which moves from south to north. this lines do not overlap each other. we can find the direction of the magnetic field lines by keeping a compass near to it. Why do 2 magnets repel or attract each other? […]
Does buoyancy affect weight?
What is the most common type of corrosion on aircraft?
What is the most common type of corrosion on aircraft? Surface corrosion How do you fix aircraft corrosion? The methods normally used to remove corrosion are mechanical and chemical. Mechanical methods include hand sanding using abrasive mat, abrasive paper, or metal wool, and powered mechanical sanding, grinding, and buffing, using abrasive mat, grinding wheels, sanding […]
Do fires raise soil pH?
Do fires raise soil pH? The impact of fires on vegetation and wildlife is obvious. Nutrient levels and soil organic matter both increase after fire. Spanish research showed a significant increase in soil pH, carbon and nutrients immediately after a prescribed grass fire. How is soil affected by fire? The most dramatic effect of a […]
How accurate are dial calipers?
How accurate are dial calipers? Quality dial, Vernier or digital calipers can all return an accuracy of about 0.001 inch over 6 inches if correctly used, although the accuracy is likely to diminish over longer spans. What are the 3 ways a dial caliper can be used to measure? There are 4 measurements you can […]
Is oil a good energy source?
Is oil a good energy source? Oil is particularly useful as a fuel because of its high energy density. As previously mentioned, the original energy source of oil is the Sun, as the energy stored within dead organic matter is what creates crude oil over time. Why is oil a bad energy source? Burning Fossil […]
Does wind affect rain?
Does wind affect rain? Air Currents Prevailing winds bring air from one type of climate to another. For example, warm winds that travel over water tend to collect moisture as they travel; the water vapor in the air will condense as it moves into colder climates, which is why temperate coastal areas often receive heavy […]
What are 3 control variables?
What are 3 control variables? An experiment usually has three kinds of variables: independent, dependent, and controlled. The independent variable is the one that is changed by the scientist. What is an example of the control group? A simple example of a control group can be seen in an experiment in which the researcher tests […]
What happens if 2 spiral galaxies collide?
What happens if 2 spiral galaxies collide? For example, two spiral galaxies can merge and form an elliptical galaxy. Galaxies are also composed of gas and dust. The gravitational pull of both colliding stars can interact with this materials, creating friction and shock waves that can ignite the formation of new stars. What will happen […]
Do egg cartons reduce sound?
Do egg cartons reduce sound? The various textural ripples and waves of egg carton-shaped materials do not absorb sound waves in their entirety. Instead, they break these sound waves up into multiple frequencies and echo them in various directions, which radically reduces the level of noise production and echo in your room. How can you […]