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 […]

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 […]

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 […]

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 […]

Is ethanol solution a dependent variable? Variables: Independent variable: Reagents (ethanol, Na, concentrated ethanoic (acetic) acid, concentrated sulphuric acid, 2-hydroxybenzoic acid, pentanol, dilute sulphuric acid, potassium dichromate(VI) solution, propan-2-ol) Dependent variable: The qualitative changes in the substance (smell, colour, percipitate etc.) What factors could affect Daphnia heart rate? Daphnia is poikilothermic, which means that its […]

Do you lose hair with radiation therapy? Radiation therapy can also cause hair loss on the part of the body that is being treated. Hair loss is called alopecia. Talk with your health care team to learn if the cancer treatment you will be receiving causes hair loss. How can I reduce WiFi radiation in […]

Can gas giants turn into stars? Stellification is a theoretical process by which a brown dwarf star or Jovian-class planet is turned into a star, or by which the luminosity of dim stars is greatly magnified. What happens when two gas giants collide? The pieces would tend to either fall back down, or remain in […]