Category: Physics

What are the advantages of using a bar graph? Advantages show each data category in a frequency distribution. display relative numbers or proportions of multiple categories. summarize a large data set in visual form. clarify trends better than do tables. estimate key values at a glance. permit a visual check of the accuracy and reasonableness […]

How do you know if a resistor is parallel? Let us summarize the major features of resistors in parallel: Equivalent resistance is found from. and is smaller than any individual resistance in the combination. The potential drop across each resistor in parallel is the same. Parallel resistors do not each get the total current; they […]

What does it mean to reach chemical equilibrium? A reaction is at equilibrium when the amounts of reactants or products no longer change. Chemical equilibrium is a dynamic process, meaning the rate of formation of products by the forward reaction is equal to the rate at which the products re-form reactants by the reverse reaction. […]

When would you say an object is in motion? When position of one object change with respect to another object with time then it is in motion or this phenomenon is called motion. For ex : a car is moving if its position is changing with respect to any other object say tree with the […]

What is the relationship between current and potential difference? The current in a circuit is directly proportional to the electric potential difference impressed across its ends and inversely proportional to the total resistance offered by the external circuit. The greater the battery voltage (i.e., electric potential difference), the greater the current. Is potential difference directly […]

What is conductor and its types? Definition: The conductor is the type of metal which allows the electrical current to flow through it. The electrical conductor is generally made up of metals like copper, aluminium and their alloys. The electrical conductor which is used for power transmission is usually stranded. What is a class 5 […]

Can you save a dying coral? There’s no bringing back a dead coral, the researchers said, but coaxing a diverse array of species back to the reef could help reinvigorate the ecosystem. Will low salinity kill coral? The rest of the story: Corals are less tolerant of lower salinity levels than fish and most corals […]

What would happen if you swing a pendulum on the moon? What effect do you think the difference in gravitational forces would have on the pendulum? (The force of gravity is less on the moon than on the Earth. Since the force of gravity is less on the Moon, the pendulum would swing slower at […]

Is enthalpy of atomisation always negative? Enthalpy of atomization is the amount of enthalpy change when a compound’s bonds are broken and the component elements are reduced to individual atoms. Enthalpy of atomization is always a positive value and never a negative number. Enthalpy of atomization is denoted by the symbol ΔHa. What does negative […]

What are the disadvantages of electroplating? What are the disadvantages of electroplating? The disposal of waste products produced during the proces of electroplating is a major problem. The waste conducting solution pollutes the environment. The process requires multiple coating of the metal, which is time consuming. The cost of setting up the apparatus is high. […]