Category: Physics

Can you solve physics problems? Multiply and divide the quantities until the units match the units of the answer quantity. For example, if you’re trying to find Potential Energy (kg*m2/s2) and you have the height (m), mass (kg) and gravitational acceleration (m/s2), you can match the units by multiplying the three quantities (m*kg*m/s2=kg*m2/s2). How do […]

How do you explain weather and climate? Weather can change from minute-to-minute, hour-to-hour, day-to-day, and season-to-season. Climate, is the average of weather over time and space. We hear about weather and climate all of the time. Most of us check the local weather forecast to plan our days. Which season is the most windy? Of […]

How can I check myself for dehydration? Tests for dehydration Gently pinch the skin on your arm or stomach with two fingers so that it makes a “tent” shape. Let the skin go. Check to see if the skin springs back to its normal position in one to three seconds. If the skin is slow […]

What is the quotient of 20 and 5? 4 What is the quotient of 90 and 5? Subtract 40 from 40 . The result of division of 905 is 18 . How do you show 90 divided by 5? Using a calculator, if you typed in 90 divided by 5, you’d get 18. You could […]

How does the axle work? An axle is a rod or shaft that rotates the wheels and supports the weight of your vehicle. Axles are essential components of any vehicle and come in three main types: front, rear, and stub. Let’s break down the types of axle and look at how to choose the right […]

Does oxygen have a fixed shape? The state that a given substance exhibits is also a physical property. Some substances exist as gases at room temperature (oxygen and carbon dioxide), while others, like water and mercury metal, exist as liquids. (a) Solid O2 has a fixed volume and shape, and the molecules are packed tightly […]

Does smoking change sperm DNA? How does smoking affect sperm? Men who smoke have decreased sperm concentration, decreased motility (how sperm swim), fewer normally shaped sperm, and increased sperm DNA damage. Do cigarettes alter your DNA? While we’ve long known that smoking is linked to cancer, this new research allows scientists to quantify the molecular […]

Can a meteor hit the sun? No asteroids have ever been observed to hit the Sun, but that doesn’t mean that they don’t! Orbits within in a Kirkwood gap are not stable, and any asteroid whose orbit wanders into such a region will eventually get pulled into a different orbit, which may take it into […]

Does changing current affect voltage? To answer this question, the relationship between the voltage and current variables given must be specified. and thus that the current will change proportionally with the voltage. and thus the current will change exponentially with the voltage. Does higher voltage draw less current? If the voltage out is twice that […]

What is another name for a push or a pull? What is another word for push and pull? rock roll swerve writhe toss about walk unsteadily flap twirl pulsate dangle What is the opposite of push and pull? Pull noun – The act or an instance of applying force on something so that it moves […]