The Magnetic Field
If you could play with a handful of electric dipoles and a handful of bar magnets, they would appear fairly similar. For instance, a pair…
Definition Essay Samples - Page 2
Using dictionary definitions to write your essay won’t cut it. Check out our examples of definition essays to grasp what it really means to write one.
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The Doppler Effect
Imagine the wave pattern made by the tip of a vibrating rod which is moving across water. If the rod had been vibrating in one…
Temperature
Thermal equilibrium We use the term temperature casually, but what is it exactly? Roughly speaking, temperature is a measure of how concentrated the heat energy…
Defining “Nothing”
One of the trickiest things to define is “nothing.” Why is it difficult to define? Once you try to define “nothing,” it becomes something. Even…
Torque
Force can be interpreted as the rate of transfer of momentum. The equivalent in the case of angular momentum is called torque. Where force tells…
What is Heat?
What is heat? Is it an invisible fluid your bare feet soak up from a hot sidewalk? Can one ever remove all the heat from…
Momentum
A conserved quantity of motion Your first encounter with the conservation of momentum may have come as a small child unjustly confined to a shopping…
Kinetic Energy
The technical term for the energy associated with motion is kinetic energy, from the Greek word for motion (the root is the same as the…
Newton’s Law of Gravity
Kepler’s laws were a beautifully simple explanation of what the planets did, but they did not address why they moved as they did. Did the…
Newton’s Second Law
What about cases where the total force on an object is not zero, so that Newton’s first law does not apply? The object will have…
Newton’s Third Law
Newton created the modern concept of force starting from his insight that all the effects that govern motion are interactions between two objects: unlike the…
Kepler’s Laws
Newton would not have been able to figure out why the planets move the way they do if it had not been for the astronomer…
Newton’s First Law
Newton’s first law: If the total force acting on an object is zero, its center of mass continues in the same state of motion. In…
Differences Between Religion and Faith
Times when religion played a major role in the lives of the majority of people living in Europe and the United States have gone long…
What Is Physics?
Given for one instant an intelligence which could comprehend all the forces by which nature is animated and the respective positions of the things which…
Cyberpunk
By Eric Mitchell, edited by Johannes Helmold In the near, plausible future, the world has been transformed dramatically by the computer age, but not necessarily…
What is Anhedonia?
Though depression is a severe psychiatric disease, rather often people use the term “depression” to describe an upset mood. They also tend to understand depression…
What is Adoption?
In the past, children were raised mostly by their biological parents. In the rare case they were not, they had either to survive on the…
What is Humor?
There are many sayings, proverbs, and scientific studies claiming and proving that having a sense of humor is a phenomenal aid in various life situations.…
Cruel and Unusual Punishment
When studying law, students often encounter the term “cruel and unusual punishment.” It is used in the VIII amendment of the Constitution of the United…