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The measurement of work and energy with the same unit reinforces the idea that work and energy are related and can be converted into one another. 1.0 J = 1.0 N∙m, the units of force multiplied by distance. 1.0 N = 1.0 kg∙m/s 2, so 1.0 J = 1.0 kg∙m 2 /s 2.
- 15.1 The Electromagnetic Spectrum
Wavelength —The distance between two wave crests or two wave...
- 22.4 Nuclear Fission and Fusion
A fission bomb is exploded next to fusion fuel in the solid...
- 23.1 The Four Fundamental Forces
W bosons (consisting of W − W − and W + W + bosons) and Z...
- 11.1 Temperature and Thermal Energy
Since 100 Celsius degrees span the same range as 180...
- 22.1 The Structure of The Atom
Rutherford’s Experiment. In the early 1900’s, the plum...
- 23.3 The Unification of Forces
Not only were three particles predicted, but the mass of...
- 21.3 The Dual Nature of Light
Momentum is conserved in quantum mechanics, just as it is in...
- 15.1 The Electromagnetic Spectrum
Both of you did the same amount of work (force × distance) but you did the work in a shorter time. However, you had more power than your friend. Let’s do the math to see how this is possible. Step one: Convert minutes to seconds. Step two: Find power. As you can see, the same amount of work that is done in less time produces more power.
Power is the rate at which work is done. It is the work/time ratio. Mathematically, it is computed using the following equation. Power = Work / time or P = W / t . The standard metric unit of power is the Watt. As is implied by the equation for power, a unit of power is equivalent to a unit of work divided by a unit of time.
Analyze a simple machine to determine a force, a distance, or a mechanical advantage. Includes 7 problems.
Steps to Calculate the Distance Traveled by an Object Using Work-Energy Theorem. Step 1: Identify the initial and final velocity. Step 2: Identify the mass of the object. Step 3: Identify...
When you describe distance, you only include the magnitude, the size or amount, of the distance traveled. However, when you describe the displacement, you take into account both the magnitude of the change in position and the direction of movement.
1. _____ is done when an object moves through a distance because of a _____ acting upon the object. 2. When calculating work, you should use the formula: work = force X _____. 3. The SI unit for work is the _____. It is represented by the letter _____. C. Work Problems: 4.
