Why does O 3 not exist? An electrically-neutral oxygen atom gains two electrons to form an oxygen ion with two negative charges. The ion would thus be highly unstable and potentially readily lose that outermost electron and return to O3− as the ten inner shell electrons seek to get rid of the additional electron. Why […]
What does a 12 volt resistor do?
What does a 12 volt resistor do? Provide the proper voltage. Resistors ensure components receive the proper voltage by creating a voltage drop, and they can protect a component from voltage spikes. Each component in an electrical circuit, like a light or a switch, requires a specific voltage. How many volts should a coil have? […]
What are the two essential conditions for work done by a force acting on an object?
What are the two essential conditions for work done by a force acting on an object? For work to be done, it is essential that some force is applied to the object and the object displaces from its initial position. If these two conditions are satisfied, then the work is done. So, work done= force […]
Which liquid would evaporate most quickly at room temperature?
Which liquid would evaporate most quickly at room temperature? Acetone has the weakest intermolecular forces, so it evaporated most quickly. Water had the strongest intermolecular forces and evaporated most slowly. Which type of liquid dries the fastest? The rubbing alcohol evaporated the fastest followed by water and finally vinegar. Olive oil didn#t seem to evaporate […]
What describes something in nature without attempting to explain it?
What describes something in nature without attempting to explain it? Unlike a theory, a scientific law describes an observed pattern in nature without attempting to explain it. A hypothesis is a possible explanation for a set of observations or answer to a scientific question. What do we call a description of how something works in […]
What is the energy change in storage battery while charging?
What is the energy change in storage battery while charging? By charging a battery, we convert electrical energy into chemical energy. A battery, on the contrary, in use, converts chemical energy into electrical energy. When an electric cell is completely changed we get? In electric cell, chemicals that is electrolyte gets divided into ions and […]
What are the six common phase changes?
What are the six common phase changes? A phase change is the reversible physical change that occurs when a substance changes from one state of matter to another. Melting, freezing, vaporization, condensation, sublimation, and deposition are six common phase changes. What are the phases of solutions? A solution is composed of one phase (e.g., solid, […]
Do transverse waves need a medium?
Do transverse waves need a medium? Transverse waves require a relatively rigid medium in order to transmit their energy. What are transverse waves give examples too? Transverse wave, motion in which all points on a wave oscillate along paths at right angles to the direction of the wave’s advance. Surface ripples on water, seismic S […]
What causes sudden blind spots in vision?
How do capacitors boost voltage?
How do capacitors boost voltage? because capacitors store energy, they can increase the apparent voltage in some circuits. Capacitors can reduce peak power demands on power sources by providing stored energy during peak loads, which would cause a voltage drop in the power source. Do capacitors decrease voltage? A capacitor opposes changes in voltage. If […]