Category: Physics

What happens to water waves when they hit a surface? Water waves can reflect or ‘bounce off’ a surface. For example, waves at sea are reflected when they hit a harbour wall, and waves in washing-up water are reflected off the sides of the sink. Why do water waves travel faster deeper? Wave height stores […]

What are examples of community resources? The resources which are accessible to all the members of the community are known as community resources. Village ponds, public parks, playgrounds, etc. are some examples of community resources. What are the benefits of community resources? 7.9 Advantages of using community resources The use of community resources localizes the […]

Why do sun rays come in at different angles? The reason the rays appear to have a diverging shape is because of perspective, and the fact that these truly parallel rays of light are land closer to us than their point-of-origin, way back at the bottoms of the clouds. What does it mean when the […]

What are the two types of glacial deposition? Glacial deposits are of two distinct types: Glacial till: material directly deposited from glacial ice. Till includes a mixture of undifferentiated material ranging from clay size to boulders, the usual composition of a moraine. Fluvial and outwash sediments: sediments deposited by water. Where are glacial deposits found? […]

Which is the most accurate calendar in the world? Gregorian calendar What is the Chinese calendar for 2020? Rat Years Rat Year Time Five Elements 2020 Jan. 25, 2020 – Feb.11, 2021 Metal (Gold) 2008 Feb. 7, 2008 – Jan. 25, 2009 Earth 1996 Feb. 19, 1996 – Feb. 6, 1997 Fire 1984 Feb. 2, […]

Does oil get thicker as it warms up? Oil weight, or viscosity, refers to how thick or thin the oil is. Your engine needs oil that is thin enough for cold starts, and thick enough when the engine is hot. Since oil gets thinner when heated, and thicker when cooled, most of us use what […]

Which has high resistance Nichrome or copper? Suppose,we have two wires of equal length and the same cross sectional,one made up of nichrome and the other made up of copper metal. Then, nichrome wire will have more resistance than the copper wire. Which is thicker Nichrome or copper? Nichrome is thicker than copper because it […]

How long will it take for a sound wave of 25 cm wavelength and 1.5 kHz frequency of to travel a distance of 1.5 km? Wavelength = 25 cm = 0.25 meters. If the sound travels 375 meters in one second, How much time will it take to travel 1500m ? Therefore the sound wave […]

What is the impact on the electrical appliances without using the fuse? It protects the appliance due to short-circuiting or over / loading as when current exceeds the limit for which the fuse is rated, it blows off and the appliance is disconnected from the electric supply, When a fuse with defined rating for a […]

Which is the correct way to handle TCS food in the microwave? Which is the correct way to handle TCS food in a microwave​ oven? Stir it halfway through the cooking process to disperse heat evenly. You just studied 16 terms! How do you properly thaw frozen food? When thawing frozen food, it’s best to […]