Category: Physics

What is the goal of artificial selection? Artificial selection aims to increase the productive or esthetic value of an organism to our advantage. Are we slowly losing our pinky finger? Our pinkies aren’t disappearing from disuse. Our DNA can and does change over time. A cavefish does not lose its eyes because it doesn’t use […]

What is the best length for waves? Make sure your hair is around 1 ½” short for an optimal wave, but you can start the brushing process (read on) on short cropped hair if you like. You’ll be trimming with short clippers just around your head from this point on for at least six weeks, […]

How do you make a motor faster? One easy way to make the motor run faster is to add another magnet. Hold a magnet over the top of the motor while it is running. As you move the magnet closer to the spinning coil, one of two things will happen. Either the motor will stop, […]

What color is the combination of all colors? white What are the 3 base colors? Color Basics Three Primary Colors (Ps): Red, Yellow, Blue. Three Secondary Colors (S’): Orange, Green, Violet. Six Tertiary Colors (Ts): Red-Orange, Yellow-Orange, Yellow-Green, Blue-Green, Blue-Violet, Red-Violet, which are formed by mixing a primary with a secondary. What are primary and […]

Does natural selection still occur today? In a world where we’ve tamed our environment and largely protected ourselves from the vagaries of nature, we may think we’re immune to the forces of natural selection. But a new study finds that the process that drives evolution was still shaping us as recently as the 19th century. […]

Does boiling takes place at all temperatures? False, Boiling takes place at a temperature where the vapor pressure of the liquid is equal to the local atmospheric pressure. Evaporation takes place at all temperatures at a rate that depends on temperature and the existing difference from saturated vapor pressure. At what temperature evaporation happens? Heat […]

What are 3 characteristics of a solid? General Characteristics of Solid State Definite mass, volume, and shape. Short Intermolecular distance. Strong Intermolecular Forces. The constituent particles remain fixed at their positions and can only oscillate about their mean positions. Solids are incompressible and rigid. High Density. Why is solid particle represented by this symbol? the […]

Who was the first person to be referred to as a psychologist? Wilhelm Wundt What is the major limitation of case studies? Limitations of Case Studies Lacking scientific rigour and providing little basis for generalization of results to the wider population. Researchers’ own subjective feeling may influence the case study (researcher bias). Difficult to replicate. […]

Is a soft drink a compound? Soft drinks are mixtures. They contain water, sugar, flavorings, coloring, and carbon dioxide gas. What is a solution? Vinegar is another homogeneous mixture. What is the name of mixture of chalk and water? Chalk powder is a carbonate compound, insoluble in water. Because of this property of chalk powder, […]

What are the two types of detergents? Detergents are classified into three broad groupings, depending on the electrical charge of the surfactants. Anionic detergents. Cationic detergents. Non-ionic and zwitter ionic detergents. Household cleaning. Fuel additives. Biological reagent. How do detergents work? The surfactants in detergents improve water’s ability to wet things, spread over surfaces, and […]