Category: Physics

Which country uses Linux the most? Linux popularity globally On a global level, the interest in Linux seems to be the strongest in India, Cuba and Russia, followed by the Czech Republic and Indonesia (and Bangladesh, which has the same regional interest level as Indonesia). How many OS are there? There are five main types […]

What is the formation of Echo? Echoes. An echo is a sound that is repeated because the sound waves are reflected back. Sound waves can bounce off smooth, hard objects in the same way as a rubber ball bounces off the ground. Although the direction of the sound changes, the echo sounds the same as […]

When a balloon is rubbed with a wool cloth the balloon becomes negatively charged because? When you rub a balloon with a wool cloth, the balloon captures electrons from the wool, leaving the balloon with a negative charge and the wool with a positive charge. If both balloons are rubbed with wool, they will both […]

What are the 5 properties of minerals? Most minerals can be characterized and classified by their unique physical properties: hardness, luster, color, streak, specific gravity, cleavage, fracture, and tenacity. What are the two 2 major properties of minerals? A mineral species is defined by two distinct properties: (1) its chemical com- position and (2) its […]

Is the reaction between magnesium and hydrochloric acid exothermic? The reaction between magnesium metal and hydrochloric acid is exothermic, because it released energy in the form of heat (increase of temperature). The energy required to break the bonds of the reactants were more than the energy required to make the new bonds of the products. […]

What happens to the pH of a weak acid when water is added? When water is added to a weak acid like ethanoic acid, the number of ethanoic acid molecules that dissociate increases, however, pH increases (less acidic), too. How do you calculate the pH of a dilution? How do I calculate the pH for […]

What rock layer is the youngest? Over time, the sediments pile up to form horizontal layers of sedimentary rocks. The bottom layer of rock forms first, which means it is oldest. Each layer above that is younger, and the top layer is youngest of all. What is the oldest layer of rock in the Grand […]

What is an example of shape constancy? a type of perceptual constancy in which an object is perceived as having the same shape when viewed at different angles. For example, a plate is still perceived as circular despite appearing as an oval when viewed from the side. What is shape and size constancy? Consequently, measuring […]

Can you feed a Venus fly trap dead bugs? What do Venus flytrap plants eat? The name says it all: Their main diet is flies (or other small insects). The trick is that the prey must be alive when caught. Dead flies won’t work in Venus flytrap feeding; the insect must move around inside the […]

What are modes of reflection? Modes of reflection. Reflective essays. Reflective blogs/journals/diaries. Simple reflective activity. What is Driscoll model of reflection? Driscoll (2007) first developed their reflective model in 1994 as a framework to guide self-reflection on specific events or happenings. Is where the learned should reflect on what happened, first considering why they are […]