 # how is temperature related to kinetic energy

March 7, 2021
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Some of us learn to notice differences in temperature while others aren’t so lucky. However, there are some similarities between the temperature of a surface and how it responds to kinetic energy. Simply put, the higher the temperature, the more kinetic energy an object has.

The most heat-related kinetic energy is the energy needed to raise the temperature of a surface by 1 degree (100 F). This happens when a surface is hit with a projectile.

The temperature of a surface depends on the relative heat capacity of its surface. The greater the surface’s heat capacity, the more heat a surface has, and the higher the temperature. For example, a surface with the same mass as a house has about 3.6 gallons of water per minute.

In physics, there are many relationships between energy and temperature. For example, if you take a car and drive it down a hill, how much energy you use to drive it down the hill depends on how far it is from the surface of the earth. The more energy you use, the more energy you need to raise the temperature of the earth to be able to drive the car. Another example is the wind that blows a sail over a boat.

This is all well and good, but what is the relationship between kinetic energy and temperature? That’s a good question. Kinetic energy is the energy that builds up when a ball of mass is thrown at a surface and bounces back. One of the more commonly known relationships is that the more kinetic energy you use to lift a car, the more energy it takes to raise the surface of the earth to the same height.

Well, there is one other relationship between kinetic energy and temperature that you might not know about. A car’s kinetic energy is directly proportional to the mass of the car. A higher mass car, like a car with more horsepower, is able to lift more weight. Kinetic energy is also directly proportional to the square of the mass of the car.

Now that we’ve discussed kinetic energy and its relationship to temperature, let’s look at how kinetic energy and temperature affect one another. The kinetic energy of one automobile is roughly equal to the mass of the automobile plus the mass of the earth. So a car that weighs 300 lb. and has 150 km worth of kinetic energy is roughly equivalent to 200,000,000 lbs of earth, and has a kinetic energy of roughly 300,000,000 joules.

A car that weighs 300 lb and has 150 km worth of kinetic energy is roughly equivalent to 200,000,000 lbs of earth, and has a kinetic energy of roughly 300,000,000 joules.

That makes sense. The kinetic energy of a bullet is roughly equal to the pressure of the bullet plus the mass of the bullet. So a bullet that weighs 30 lbs and has 60 km worth of kinetic energy is roughly equivalent to 300,000,000 lbs of earth, and has a kinetic energy of roughly 300,000,000 joules.

The kinetic energy of a bullet is roughly equal to the mass of the bullet and the velocity of the bullet. So a bullet that weighs 30 lbs and has 60 km worth of kinetic energy is roughly equivalent to 300,000,000 lbs of earth, and has a kinetic energy of roughly 300,000,000 joules.

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