Category: Physics

Can concave lens produce real image? Convex (converging) lenses can form either real or virtual images (cases 1 and 2, respectively), whereas concave (diverging) lenses can form only virtual images (always case 3). Real images are always inverted, but they can be either larger or smaller than the object. What are the properties of lenses? […]

How do you do IV push medications? Scrub the end cap on your IV line for 15 seconds with a fresh alcohol pad and let it air dry. Twist the syringe of heparin or citrate into the end of your IV line. “Pulse flush” your IV line with the syringe of heparin or citrate. Before […]

Which is the best power shower? The best power showers to buy Aqualisa Aquastream: The best all-round power shower. Mira Event XS: The best mid-range power shower. Triton AS2000SR: The best low-noise power shower. Mira Vigour Manual: The best budget power shower. Bristan Hydro Power 1500: A rock-solid, low-cost power shower. Can I use 6mm […]

How do you know which direction is north at night? Use the Big Dipper It’s Polaris, the North Star. Polaris is over the North Pole, so if you find it in the night sky, you’ll know where north is. How can you tell which direction you are facing? Method 1. Stand with your right arm […]

What are three space explorations? Examples of such efforts include the development of the Curiosity Mars rover, the Cassini-Huygens mission to Saturn and its moons, and the development of major space-based astronomical observatories such as the Hubble Space Telescope. What was the coolest space mission? Apollo 9 and 10 were again crewed test flights, but […]

Do I have to memorize kinematic equations for MCAT? Kinematic equations are the foundation to mastering MCAT physics. Yes you have to ‘memorize’ and know the standard formulas, but it goes deeper than that. You have to understand the units, when to use which equation, and be VERY comfortable applying these concepts to the more […]

What will happen when a ringing tuning fork is lowered into water? When struck, the double-pronged metal rod vibrates at a constant frequency — and thus emits a constant pitch. The naked eye can’t spot the vibrations, but dipping the tuning fork in water and slowing down the footage make them anything but invisible. What […]

What is the difference between earthquake and fault? Earthquakes occur on faults – strike-slip earthquakes occur on strike-slip faults, normal earthquakes occur on normal faults, and thrust earthquakes occur on thrust or reverse faults. When an earthquake occurs on one of these faults, the rock on one side of the fault slips with respect to […]

Why should mass not be represented by an arrow? But, we should also remember that mass is a scalar quantity which says that mass does not have any directions. It is just the amount of matter contained in any objects. So, there is no need to represent mass by an arrow. It is a simple […]

What is a periscope Class 6? A periscope is an instrument for observation over, around or through an object, obstacle or condition that prevents direct line-of-sight observation from an observer’s current position. In its simplest form, it consists of an outer case with mirrors at each end set parallel to each other at a 45° […]