Category: Physics

What is a group of humans called? Community,gathering,crowd,mob,guerillas’ or terrorists! There are all sorts of words for groups of humans: nation, corporation, family, club, mob, gang, etc etc. What is a group of snakes called? A group of snakes is generally a pit, nest, or den, but they’re generally thought of as solitary creatures, so […]

What do we call rising hot liquids? The particles in these fluids can move from place to place. Convection occurs when particles with a lot of heat energy in a liquid or gas move and take the place of particles with less heat energy. The liquid or gas in hot areas is less dense than […]

How many lines is 150 words? 17 lines Why is I am the shortest sentence? The sentence I am. certainly has a subject (I) and a predicate (am), and it expresses a complete thought, as well. So when your school paper stated that I am. is the shortest sentence in English, its editors meant that […]

Do you oil both sides of a cutting board? Oil both sides of the cutting board as well as the edges. Prop the board against a wall or sink to dry overnight. If any excess oil remains on the wood the next day, you can wipe it off with a rag. How long do you […]

How do you reduce a 12v to 5V with a resistor? To divide voltage in half, all you must do is place any 2 resistors of equal value in series and then place a jumper wire in between the resistors. At this point where the jumper wire is placed, the voltage will be one-half the […]

What happens if you increase the frequency? 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 the six most common NDT methods? The six most frequently used NDT methods are eddy-current, magnetic-particle, liquid penetrant, radiographic, ultrasonic, and visual testing. Is NDT dangerous? Certain nondestructive testing methods used by the military, such as ultrasonic or eddy current testing, are almost entirely benign and do not pose a hazard to testing […]

What is change in motion called? Speed and direction of motion is velocity. A change in speed is a change in velocity – so, a change in speed is an example of acceleration! Page 2. Acceleration may be positive or negative. Negative acceleration is sometimes called deceleration. What is the rate change in velocity? The […]

When a passenger jumps out of a moving train he falls down due to inertia of? This is because when the passenger is sitting inside the train his body possesses inertia of motion but when he jumps out of the moving train his lower body suddenly stops but the upper body still has the inertia […]

What is the instrument used to measure length? Length, or the distance between two lengths: Tools used to measure length include a ruler, a Vernier caliper, and a micrometer screw gauge. Vernier calipers and micrometer screw gauges are more precise and can be used to measure the diameter of objects like pipe and wire. What […]