Category: Physics

How long does it take to stop your car at 55 mph? about 6 seconds When driving at 55 mph How many feet do you need to stop? 300 feet What do anti lock brakes allow you to do? Anti-lock brakes prevent the wheels from locking up during heavy braking, allowing for maintained contact with […]

Why do toilets flush the opposite way in Australia? Because of the rotation of the Earth, the Coriolis effect means that hurricanes and other giant storm systems swirl counter-clockwise in the Northern Hemisphere, and clockwise in the Southern Hemisphere. In theory, the draining water in a toilet bowl (or a bathtub, or any vessel) should […]

Are magnets bad for automatic watches? Analog quartz watches utilize the power of magnetic force in order to drive the step motors to move the rotors. As a result, watches may stop or fail to keep correct time. But magnetism remaining inside of the watch does not affect its accuracy, so keep it away from […]

What types of energy are released when something burns? When you burn that wood in a fireplace, chemical energy is released and converted into thermal energy (heat) and light energy. What type of energy is produced and wasted? Heat energy is the most easily dissipated form of energy. Light energy is frequently energy seen in […]

Is torque a type of moment? The product of the force and the perpendicular distance to the center of gravity for an unconfined object, or to the pivot for a confined object, is^M called the torque or the moment. A torque is also a vector quantity and produces a rotation in the same way that […]

How do you revise physics for NEET in 1 month? Question-Based Revision: To revise a particular chapter/topic/unit from Physics or Chemistry, choose 45-50 random MCQ questions (as per NEET exam pattern) from that chapter/topic/unit and solve them in 45 minutes. Which is easy NEET or JEE? It’s tough to compare the two examinations. As per […]

What is Arcsin equal to? arcsin sin30 = 0.5 Means: The sine of 30 degrees is 0.5 arcsin 0.5 = 30 Means: The angle whose sin is 0.5 is 30 degrees. How do you calculate Arcsin? arcsin is defined to be the inverse of sin but restricted to a certain range. Hence arcsin(sin(x))=x if x […]

Are self-driving cars a good idea? Self-driving cars could be of huge benefit to the environment. Part of the reason cars cause so much air pollution is traffic gridlock in highly congested areas. The efficiency of self-driving cars, in addition to the possibility of a future without any gridlock or traffic stops, will cut down […]

Why do I cry when I yawn? Our eyes need to stay wet, so these glands produce tears all the time to slowly release onto our eyes. When we yawn, our face muscle contract and put pressure on the tear glands. This causes them to release excess tears. Together, this means that your eyes water […]

How do you prevent Colorado potato beetles? There are several plants that deter potato beetles. Try planting at least one or two of them alongside or even interplanted with your potatoes. A few good options include catnip, tansy, and sage. What is the life cycle of the Colorado potato beetle? The life cycle of the […]