Category: Physics

What are two examples of concave lens? There are many examples of concave lenses in real-life applications. Binoculars and telescopes. Eye Glasses to correct nearsightedness. Cameras. Flashlights. Lasers (CD, DVD players for example). How do we use magnifying lens in our life? Light A magnifying glass (called a hand lens in laboratory contexts) is a […]

At what pH enzymes are highly efficient? The enzyme activity is maximum at optimum pH which is between 5-7. Why do enzymes denature at high and low pH? Within the enzyme molecule, positively and negatively charged amino acids will attract. This contributes to the folding of the enzyme molecule, its shape, and the shape of […]

Can we sit on a cloud? Although we can’t really touch clouds you could walk through one. In fact that’s what fog is: a cloud that’s formed close to the ground instead of high in the sky. We can’t touch fog but we can move through it. Although it’s fun to imagine sitting on a […]

What is the relationship between mass and weight of an object? Mass is a measure of how much matter there is in an object, while weight is a measure of the size of the pull of gravity on the object. Mass is the amount of matter in an object. Mass is measured in kilograms (kg). […]

What if Earth had no tilt? The tilt of Earth’s axis is the main cause of the seasons. If Earth had no tilt, then the length of daylight and the intensity of solar heating seen by a person standing at a single place on the surface would be the same all year round. What if […]

What are the negative effects of technology in the workplace? Distraction is one of the most harmful impacts of technology at the workplace. The result? Cognitive scientist Gloria Mark says, is, people compensating for interruptions by working faster, leading to stress, frustration and pressure. All of this leads to poor productivity. Why the technology is […]

What is the weird U in physics? Symbols for physical quantities and their international units symbol quantity unit U, UE potential energy, electric potential energy joule V, VE voltage, potential, electric potential volt ℰ electromotive force, emf volt C capacitance farad What is the U shaped symbol? The union symbol ( ) denotes the union […]

What is the significance of Thevenin equivalent circuit? Thevenin’s Theorem is especially useful in analyzing power systems and other circuits where one particular resistor in the circuit (called the “load” resistor) is subject to change, and re-calculation of the circuit is necessary with each trial value of load resistance, to determine voltage across it and […]

What happens to wavelength of energy increases? The number of complete wavelengths in a given unit of time is called frequency (f). As a wavelength increases in size, its frequency and energy (E) decrease. From these equations you may realize that as the frequency increases, the wavelength gets shorter. As the frequency decreases, the wavelength […]

What are examples of Geosphere? Examples are all the rocks and sand particles from dry land to those found at the bottom of the oceans. They also include the mountains, minerals, lava and molten magma from beneath the earth’s crust. The geosphere undergoes infinite processes constantly and that, in turn, modifies other spheres. What are […]