How do you know if a road is 20 mph? There are no physical measures such as chicanes or humps in the roads that have been added to an original 20mph zone. Instead you’ll see road signs at the entry points into the 20mph zone, together with ’roundels’ or circles with ’20’ painted on the […]
What object is not found within our solar system?
What object is not found within our solar system? The sun, the planets, dwarf planets (Pluto), natural satellites (like the moon), asteroids, comets, meteoroids, meteors, and meteorites. Objects NOT found in our solar system: Galaxies, other stars, constellations, the universe, black holes, supernovas and nebulae. What is a coma in the solar system? The coma […]
What are the different forms of assessment?
What are the different forms of assessment? What are the types of assessment? Pre-assessment or diagnostic assessment. Formative assessment. Summative assessment. Confirmative assessment. Norm-referenced assessment. Criterion-referenced assessment. Ipsative assessment. What is the difference between assessment tools and assessment techniques? Defining Assessment Methods and Tools An assessment method is defined as the philosophical or pedagogical approach […]
Is rain water an acid or alkali?
Is rain water an acid or alkali? Not all rain can be considered pure water. Pure water is neither alkaline nor acidic. As rain falls from the atmosphere the impurities it collects changes the pH of the rain water, making it slightly acidic. How can we keep rain water clean? 5 Ways to Properly Store […]
What is cell surface charge?
What is cell surface charge? The surface charge can have either a negative or positive electrical state, which is determined by the balance between negatively charged and positively charged nanoparticles at the surface. The cell membrane surface of living cells has a different electric potential to the interior of cell, namely membrane potential. Are cells […]
Which statement best describes the effect that stress has on the immune system?
Which statement best describes the effect that stress has on the immune system? Stress can lead to increased vulnerability to infections and immune deficiency disorders:best describes the effects that stress has on the immune system. Which of the following symptoms is considered a physical effect of stress? Chest pain is considered to be the physical […]
When sugar is dissolved in water the resulting solution is classified as a?
What is the intensity of a 40 dB sound?
What are the similarities and differences between electric and magnetic forces acting on a charged particle?
What are the similarities and differences between electric and magnetic forces acting on a charged particle? Electric forces are created by and act on, both moving and stationary charges; while magnetic forces are created by and act on only moving charges. Electric monopoles exist. Magnetic monopoles don’t* exist. This is the reason that Maxwell’s laws […]
How many tidal bulges are there in a day?
How many tidal bulges are there in a day? two tidal What causes tidal forces? Gravity is one major force that creates tides. In 1687, Sir Isaac Newton explained that ocean tides result from the gravitational attraction of the sun and moon on the oceans of the earth (Sumich, J.L., 1996). Why do tidal forces […]