Category: Physics

What are characteristics of groundwater? Some of the most typical characteristics of groundwater are weak turbidity, a constant temperature and chemical composition and almost overall absence of oxygen. Circulating groundwater can have extreme variation in the composition with the appearance of pollutants and various contaminants. What is an example of groundwater? Groundwater originates from rain […]

Why can diamond not dissolve? This is because of the relatively large amount of space that is “wasted” between the sheets. is insoluble in water and organic solvents – for the same reason that diamond is insoluble. Attractions between solvent molecules and carbon atoms will never be strong enough to overcome the strong covalent bonds […]

Does increasing current increase magnetic field? Yes, increasing current increases magnetic field strength. A moving charge produces a magnetic field around itself. Can a solenoid be reversed? A normal solenoid will not reverse direction if you reverse the polarity. They do not work by having north and south poles which attract or repel. That is […]

How does force affect swimming? The effect of buoyancy in swimming is best described by Archimedes’ principle: a body fully or partially submerged in a fluid is buoyed up by a force equal to the weight of the fluid that is displaced by the body. This effectively negates any effects that gravity might have on […]

What kind of air mass is in a high pressure system? A warm front is associated with a high-pressure system and occurs when a warm air mass replaces a colder air mass. Because warm air moves closer to the ground, a high-pressure system often brings clear, calm weather. Warm fronts travel slowly and are weaker […]

Can energy leave a system? First Law of Thermodynamics: Energy can be changed from one form to another, but it cannot be created or destroyed. The total amount of energy and matter in the Universe remains constant, merely changing from one form to another. Is work out positive or negative? The first law is simply […]

How did they lift the stones at Stonehenge? Raising the stones To erect a stone, people dug a large hole with a sloping side. The back of the hole was lined with a row of wooden stakes. The stone was then moved into position and hauled upright using plant fibre ropes and probably a wooden […]

How do you make a model of wind energy? Wind Turbine Model Step 1: Materials. Materials. Step 2: Procedure Step 1. Measure 1”, and 5” on PVC Pipe. Step 3: Procedure Step 2. Put the o-ring onto the front of the motor. Step 4: Procedure Step 3. Step 5: Procedure Step 4. Step 6: Stop […]

What are the main losses in a transformer? Types of Losses in a Transformer Iron Losses. Hysteresis Loss. Eddy Current Loss. Copper Loss Or Ohmic Loss. Stray Loss. Dielectric Loss. What are the two types of power losses in a transformer? There are two types of losses occurs in a transformer: Iron loss or Core […]

What is the best method to demagnetize a steel rod? Steel can be demagnetized with a commercial demagnetizer, a hammer or by heating it to a very high temperature, known as the Curie temperature. How do you magnetize and demagnetize? Place the magnet at one end of the piece of metal. The magnet must make […]