Category: Physics

What is the ideal problem solving method? IDEAL model consisting of five indictors including (1) Identify the problem: trying to identify problems and make them an opportunity to do something creative, (2) Define goals: set goals in a problem, (3) Explore solution: explore alternative approaches to solving problems, (4) Act on the strategy: anticipate results […]

Does Liquids have a fixed volume? Liquids have a fixed volume but no fixed shape. Gases have no fixed volume and no fixed shape. Gases expand to fill the space available. They can also be compressed into a very small space. Do liquids have no fixed volume? Liquids, because they flow, can occupy whatever shape […]

What does it mean when a force is balanced? Balanced forces are equal in size and opposite in direction. When forces are balanced, there is no change in motion. In one of your situations in the last section, you pushed or pulled on an object from opposite directions but with the same force. What is […]

What is the chemical equation of oxygen? As we inspect this equation we see that there is one carbon atom on each side of the arrow and that there are two oxygen atoms on each side….5.2: Chemical Equations. Element Chemical Formula Hydrogen H2 Oxygen O2 Nitrogen N2 Fluorine F2 What type of reaction is C […]

What is the SI unit of current? ampere How do you measure current in a DC circuit? It is measured in the unit of the Ampere, simply called “Amp,” (A). The most common way to measure current in a circuit is to break the circuit open and insert an “ammeter” in series (in-line) with the […]

How do red blood cells and white blood cells work together? Red blood cells carry oxygen to all parts of the body. White blood cells help fight infection. Platelets are tiny cells that have a big job in stopping bleeding. Proteins in the blood called clotting factors work to form a clot. What causes white […]

How is density directly proportional to volume? Density and Volume are inversely proportional to each other. Mass and volume are not the same. When density increases, volume decreases. When volume increases, density decreases. What do density mass and volume have in common? An object’s density is the ratio of mass to volume of an object. […]

How do you increase the amplitude of a sound wave? In theory, a sound wave can have any amplitude, and we can boost a wave by multiplying its samples with any arbitrarily large number. What is relation between frequency and voltage? As the voltage increases so does the power out of the area and frequency […]

Which is more accurate 10 mL or 100 mL graduated cylinder? For accuracy the volume on graduated cylinders is depicted on scales with 3 significant digits: 100mL cylinders have 1ml grading divisions while 10mL cylinders have 0.1 mL grading divisions. Class A has double the accuracy of class B. Which has greater precision the 10 […]

Why does Russia have backwards letters? Short answer: Because Russian and Greek sound different. And politics. Longer Answer: Many Slavic languages (Russian included) use what’s called the Cyrillic alphabet. Which language uses a backwards N? Yes, it’s Russian, but Russian isn’t the only language to use this script. This script is called Cyrillic, and is […]