basic_notions:kinetic_energy
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basic_notions:kinetic_energy [2021/04/17 07:40] cleonis Changed (accidental) lowercase in the title to uppercase |
basic_notions:kinetic_energy [2021/07/03 10:42] (current) cleonis [Intuitive] Added formatting so that the images float to the right |
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| Among the setups used by Joule was one of the type shown in the image. A weight is attached to a rope, the rope runs over a pulley. At the start the rope is coiled around a vertical axle that makes paddles turn in water; the water is inside a calorimeter. | Among the setups used by Joule was one of the type shown in the image. A weight is attached to a rope, the rope runs over a pulley. At the start the rope is coiled around a vertical axle that makes paddles turn in water; the water is inside a calorimeter. | ||
| - | {{:basic_notions:joule_apparatus.png?400|}} | + | {{ :basic_notions:joule_apparatus.png?400|}} |
| The paddles are churning the water and the effect of this churning is that the temperature of the water rises. Joule confirmed that double the height gives double the temperature change. That is, Joule confirmed that the relation is linear: if the force is uniform then force multiplied by distance gives the amount of energy. | The paddles are churning the water and the effect of this churning is that the temperature of the water rises. Joule confirmed that double the height gives double the temperature change. That is, Joule confirmed that the relation is linear: if the force is uniform then force multiplied by distance gives the amount of energy. | ||
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| The total duration is 4 seconds. As we know: after 2 seconds, half the total duration, the falling object has covered only one fourth of the total height. That is, after 2 seconds, when the velocity has reached half of the final velocity, the accumulated energy is at that point one fourth of what the final energy will be. | The total duration is 4 seconds. As we know: after 2 seconds, half the total duration, the falling object has covered only one fourth of the total height. That is, after 2 seconds, when the velocity has reached half of the final velocity, the accumulated energy is at that point one fourth of what the final energy will be. | ||
| - | {{:basic_notions:kinetic_energy_free_fall_parabola.png}} | + | {{ :basic_notions:kinetic_energy_free_fall_parabola.png}} |
| During the time from the 0 second mark to the 2 second mark the object falls one fourth of the total height, during the time from the 2 second mark to the 4 second mark the object falls the remaining three quarters of the total height. | During the time from the 0 second mark to the 2 second mark the object falls one fourth of the total height, during the time from the 2 second mark to the 4 second mark the object falls the remaining three quarters of the total height. | ||
basic_notions/kinetic_energy.txt ยท Last modified: 2021/07/03 10:42 by cleonis
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