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PS3: Energy

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Kaylen Rossi

on 8 October 2014

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Transcript of PS3: Energy

Kaylen & Alex G.
PS3: Energy
Essential Question: How is energy transferred and conserved?
PS3: Energy
What is energy?
PS3.A: Definitions of Energy
What is meant by conservation of energy?
How is energy transferred between objects or systems?
PS3.B: Conservation of Energy and Energy Transfer
How are forces related to energy?
PS3.C: Relationship Between Energy and Forces
Interactions of objects can be explained and predicted using the concept of transfer of energy from one object or system of objects to another. The total energy within a defined system changes only by the transfer of energy into or out of the system.
Grade 3-5: The faster a given object is moving, the more energy it possesses. Energy can be moved from place to place by moving objects or through sound, light, or electric currents.
K-2: Sunlight warms Earth's surface.
3-5: Energy is present whenever there are moving objects, sound, light, or heat. Light also transfers energy from place to place. Energy can also be transferred from place to place by electric currents, which can then be used locally to produce motion, sound, heat, or light.
K-2: A bigger push or pull makes things go faster. Faster speeds during a collision can cause a bigger change in shape of the colliding objects.
3-5: When objects collide, the contact forces transfer energy so as to change the objects’ motions. Magnets can exert forces on other magnets or on magnetizable materials, causing energy transfer between them (e.g., leading to changes in motion) even when the objects are not touching.
PS3.D: Energy in Chemical Processes
and Everyday Life
How do food and fuel provide energy?
If energy is conserved, why do people say it is produced or used?
K-2: When two objects rub against each other, this interaction is called friction.
3-5: The expression “produce energy” typically refers to the conversion of stored energy into a desired form for practical use—for example, the stored energy of water behind a dam is released so that it flows downhill and drives a turbine generator to produce electricity.
What Grade Levels?
Kindergarten:
K-PS3-1: make observations to determine the effect of sunlight on Earth's surface
K-PS3-2: Use tools and materials to design and build a structure that will reduce the warming effect of sunlight on an area.
What Grade Level?
Fourth Grade:
4-PS3-1: Use evidence to construct an explanation relating the speed of an object to the energy of that object.
4-PS3-2: Make observations to provide evidence that energy can be transferred from place to place by sound, light, heat, and electric currents.
4-PS3-3: Ask questions and predict outcomes about the changes in energy that occur when objects collide.
4-PS3-4: Apply scientific ideas to design, test, a refine a device that converts energy from one form to another.
What Grade Level?
Fifth Grade:
5-PS3-1: Use models to describe that energy in animals' food (used for body repair, growth, motion, and to maintain body warmth) was once energy from the sun.
What should high school graduates know?
Energy is a quantitative property of a system that depends on the motion and interactions of matter and radiation within that system.
Conservation of energy means that the total change of energy in any system is always equal to the total energy transferred into or out of the system.
What should high school graduates know?
Force fields (gravitational, electric, and magnetic) contain energy and can transmit energy across space from one object to another.
Nuclear fusion processes in the center of the sun release the energy that ultimately reaches Earth as radiation.
Lessons & Activities
Kindergarten:
Trees and Weather
Materials in Our World
Air and Weather
Fourth Grade:
Motion, Force, and Models
Energy and Electromagnetism
Fifth Grade:
Living Systems
Environments
Structures of Life
Full transcript