Category: Physics

What type of word is pressure? pressure noun (FORCE) Pressure is also the force that is put on a surface with reference to the area of the surface. How do you use the word pressure? [S] [T] Don’t pressure Tom. ( CK) [S] [T] Stop pressuring me. ( CK) [S] [T] Tom is under pressure. […]

Can a thermos explode? Exploding cold drinks might just get you wet, but hot drinks might cause a lot of damage. There are two ways vacuum flasks can explode or implode. One is when there is a build-up of pressure within the flask itself. One is when the internal layer is compromised. Why do we […]

What is the direction of force on electron? The direction of the force acting on the electron is the direction the palm of the left hand faces. The direction of the magnetic field, the direction of the moving charge, and the direction of the force on the particle are all perpendicular to each other. What […]

Can acceleration change if velocity is constant? An object’s acceleration is the rate its velocity (speed and direction) changes. Therefore, an object can accelerate even if its speed is constant – if its direction changes. If an object’s velocity is constant, however, its acceleration will be zero. Does constant speed mean constant velocity? To have […]

What are the 2 types of cell division? There are two types of cell division: mitosis and meiosis. Most of the time when people refer to “cell division,” they mean mitosis, the process of making new body cells. Meiosis is the type of cell division that creates egg and sperm cells. What is cell division […]

Is there G Force in a vacuum? The g-force acting on an object in any weightless environment such as free-fall in a vacuum is 0 g. The g-force acting on an object under acceleration can be much greater than 1 g, for example, the dragster pictured at top right can exert a horizontal g-force of […]

How do you make someone like you psychology? Here Are 16 Psychological Tricks to Immediately Make People Like You More Copy the person you’re with. Spend more time around the people you’re hoping to befriend. Compliment other people. Try to display positive emotions. Be warm and competent. Reveal your flaws from time to time. Emphasise […]

What is the potential energy of two equal negative point charges? Thus, the potential energy of a system of two equal negative point charges of 2μC each held 1 m apart in air is3.6×10−2J. The correct option is D. What will be the work done on a unit positive charge when it is moved from […]

What is considered bad visibility? Very low visibility Visibility of less than 100 metres (330 ft) is usually reported as zero. In these conditions, roads may be closed, or automatic warning lights and signs may be activated to warn drivers. Why is poor visibility dangerous? Visibility distance is reduced by fog and heavy precipitation, as […]

Is it dangerous to live on a high floor? The Risks of High-Rise Living To be clear, there are no inherent risks associated with living in a high-rise building, but there is a large body of research suggesting that under some circumstances, some demographics do report higher mortality rates living on higher versus lower floors. […]