Segment 4H: Conservation of Energy
We explore the inner workings of a hydroelectric dam as we learn about the law of conservation of energy. The difference between conservative and non-conservative forces is illustrated and we work through an example problem involving gravitational potential energy and kinetic energy.
We explore the inner workings of a hydroelectric dam as we learn about the law of conservation of energy. The difference between conservative and non-conservative forces is illustrated and we work through an example problem involving gravitational potential energy and kinetic energy.
Learning Objectives
-Define the law of conservation of energy and apply it to real-world situations.
-Observe the law of conservation of energy in action by looking at energy transformations.
-Differentiate between conservative and non-conservative forces
-Define the law of conservation of energy and apply it to real-world situations.
-Observe the law of conservation of energy in action by looking at energy transformations.
-Differentiate between conservative and non-conservative forces
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Vocabulary
conservative force - forces that cause energy to be converted into forms that be easily regained; examples are gravity, the electrostatic force, and the spring force. gravitational potential energy (PEG) - the stored energy of an object due to its position relative to a reference point on Earth; is equal to the mass of an object multiplied by the acceleration due to gravity multiplied by the height of the object relative to the reference point. kinetic energy (KE) - the energy of motion; equal to one half times mass times the square of the velocity of an object. law of conservation of energy - energy is never created or destroyed; it is transferred or transformed from one form to another. non-conservative force - forces that cause energy to be converted into forms that cannot be easily regained; examples are friction and air resistance.
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Closer Look 4H Conservation of Energy
In this Closer Look segment, we explore the Conservation of Energy by looking at a football thrown as a projectile at an angle, a student in a pogo stick jumping competition, and a spring launching an object into the air
In this Closer Look segment, we explore the Conservation of Energy by looking at a football thrown as a projectile at an angle, a student in a pogo stick jumping competition, and a spring launching an object into the air