Category: Physics

Will we run out of rocket fuel? So no, it is literally impossible to run out of modern rocket fuel, as we basically reuse it (when burned, turned into water vapour, rains down, we collect it and separate it into the two gasses, which can then be burned again. We will only run out of […]

Will a microwave explode? The water in their body heats up due to molecular resonance with the microwaves. Their eyeballs may explode from the pressure build-up as the water in them turns to steam with nowhere to escape. After a few minutes the heat will have penetrated deep into their bodies, causing their internal organs […]

What is the correct order for Organisational planning? There are four phases of a proper organizational plan: strategic, tactical, operational, and contingency. Each phase of planning is a subset of the prior, with strategic planning being the foremost. What is the overall focus of strategic planning? Strategic planning is an organizational management activity that is […]

How do you convert a smaller unit to a larger unit? To convert a smaller unit to a larger unit (eg to ), divide it by the number of smaller units which are needed to make. To convert from a larger unit to a smaller one, multiply. To convert from a smaller unit to a […]

What is the Joule equal to? One joule equals the work done (or energy expended) by a force of one newton (N) acting over a distance of one meter (m). One newton equals a force that produces an acceleration of one meter per second (s) per second on a one kilogram (kg) mass. Therefore, one […]

Where does the sun go when it sets? Answer: The Sun, the Moon, the planets, and the stars all rise in the east and set in the west. And that’s because Earth spins — toward the east. Where does the moon rise if the Earth rotates counter clockwise? The Earth rotates counter-clockwise on its axis […]

Can a bulb added in a circuit with twisted wires light up? Answer. Answer: Yes,because it is still a complete circuit. What must be true for a circuit to light a bulb? Based on what you have seen, what must be true for a circuit to light a bulb? There has to be a lightbulb […]

At what distance does a long straight wire carry a current? Answer. Magnetic field, We have to find the distance from a long straight wire that is carrying a current of 12 A. Hence, at 0.08 m from a long straight wire carrying a current of 12 A. What basic principle enables all electric generators? […]

What is the lowest temperature that a substance can reach? Absolute zero, technically known as zero kelvins, equals −273.15 degrees Celsius, or -459.67 Fahrenheit, and marks the spot on the thermometer where a system reaches its lowest possible energy, or thermal motion. There’s a catch, though: absolute zero is impossible to reach. What is 70 […]

Where are graphs used? Graphs are a common method to visually illustrate relationships in the data. The purpose of a graph is to present data that are too numerous or complicated to be described adequately in the text and in less space. How are bar graphs useful in real life? Bar graphs are an extremely […]