Essay about Energy Gives Us One More Tool To Use To Approach Physical Situations

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Energy gives us one more tool to use to approach physical situations. When we were analyzing situations in terms of forces and accelerations, we would usually freeze the action at a particular instant in time, draw a free-body diagram, set up force equations, figure out accelerations, etc. With energy the approach is usually a little different; often you can look at the starting conditions and the final conditions and not have to worry about what happens in between. The initial and final information often tells you whatever is desired to know. Whenever a force is applied to an object, causing the object to move, work is being done by the force. If a force, F, is applied but the object doesn't move, no work is done; if a force is applied and the object moves a distance s in a direction other than the direction of the force, less work is done than if the object moves a distance s in the direction of the applied force. An object has kinetic energy if it has mass and if it is moving. It is energy associated with a moving object, in other words. There is a strong connection between work and energy, in a sense that when there is a net force doing work on an object. According to the 8 marble droppings experimented, the hypothesis was supported. We had to convert the centimeters into meters so the numbers decreased after that change. One problem we had was when the marble dropped twice on the black marking paper but we crossed it out and it was no longer a problem. Further ways to

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