Category: Physics

Which is more dangerous CT scan or MRI? A significant difference between CT and MRI scans is that CT scans expose patients to ionizing radiation, while an MRI does not. The amount of radiation used during this test is higher than the amount used in an x-ray. Therefore, a CT scan slightly increases your risk […]

Are low interest rates good for the economy? When consumers pay less in interest, this gives them more money to spend, which can create a ripple effect of increased spending throughout the economy. Businesses and farmers also benefit from lower interest rates, as it encourages them to make large equipment purchases due to the low […]

Why is friction so important to a moving vehicle? Friction may slow the car down as it moves along the road, but it also is the force that enables the car to move forward at all. So, it is the force of friction that makes a car accelerate forward and also decelerate to a stop. […]

Is potentiometer a sensor? The potentiometer is also called as pots and it one of the most commonly used devise for measuring the displacement of the body. The potentiometer is the electrical type of transducer or sensor and it is of resistive type because it works on the principle of change of resistance of the […]

What is the richest Canadian province? The Top 7 Richest Provinces in Canada Alberta – C$78,154. Saskatchewan – C$70,654. Newfoundland and Labrador – C$65,556. Ontario – C$48,971. British Columbia – C$47,579. Manitoba – C$44,654. Quebec – C$43,349. What is Canada’s largest city? Toronto Which city is beautiful in Canada? Vancouver Which city is Canada’s busiest […]

What is an example of atmosphere? Atmosphere is defined as the area of air and gas enveloping objects in space, like stars and planets, or the air around any location. An example of atmosphere is the ozone and other layers which make up the Earth’s sky as we see it. An example of atmosphere is […]

What is the increase in temperature that will double the rate of reaction? It has been observed experimentally that a rise of 10 °C in temperature usually doubles or triples the speed of a reaction between molecules. The minimum energy needed for a reaction to proceed, known as the activation energy, stays the same with […]

What is velocity vs speed? Speed is the time rate at which an object is moving along a path, while velocity is the rate and direction of an object’s movement. Put another way, speed is a scalar value, while velocity is a vector. What is speed and agility? Speed is defined as the ability to […]

How do glasses use refraction? Lenses serve to refract light at each boundary. As a ray of light enters a lens, it is refracted; and as the same ray of light exits the lens, it is refracted again. Because of the special geometric shape of a lens, the light rays are refracted such that they […]

What does baking soda and water do for your stomach? Baking Soda Dos. You can use it to: Calm indigestion: Add 1/4 teaspoon of baking soda to a glass of water to zap acid in your stomach. But acid doesn’t cause all kinds of indigestion, so if your symptoms don’t improve after 2 weeks, call […]