energy science test! by: s. c. and a. v.. objectives section 4-1 describe the relationship between...
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Energy Science Test!
By: S. C. and A. V.
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Objectives Section 4-1Describe The Relationship Between Work And Energy
1. When work is done on an object, energy is transferred to that object.
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2. Relate kinetic energy to mass and speed.
The kinetic energy of any moving object depends on mass and speed
3. Analyze how potential energy is related to an objects position.
Gravitational Potential energy is what the objects height is.
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4. Give examples of the major forms of energy.
A car started to move (kinetic energy ) and then it went up a hill ( gravitational potential energy ). Then the car went down the hill and ran into a trampoline and the trampoline stretched ( elastic potential energy ). The car blew up (thermal energy ) from the chemicals on the trampoline ( chemical energy ).
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Objectives Section 4-21. Describe conversions of energy from one
form to another.
Conversion means a change from one form or state to another. So, if something new happens to something (like picking an object up and dropping it) that would be an energy conversion.
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2. State and apply the law of conversions and energy.
The law of conversions` of energy states that energy cant be created or destroyed.
3. Analyze how energy is converted in conversions between kinetic energy and potential energy.
Bird lifts oyster increasing the oyster’s potential energyBird drops oyster and the P.E. is converted to K.E.
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4. Describe the relationship between mass
and energy.
The mass and energy both effect each other. Like if the mass was really big the
energy could be greater (like
gravitational potential energy).
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Objections 4-31.Classify energy resources as renewable or
non-renewable
Fossil fuels are non-renewable and examples of renewable are solar, wind, hydroelectric, geothermal, biomass, nuclear, and fusion.
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2. Evaluate benefits and draw backs of different energy sources.
Solar
Energy
Hydro
Electric
Geo
Thermal
Advantages No pollution-low cost
No pollution- Low cost
No pollution
Disadvantages Must have sun
Environmental impact-not enough rivers
Need hot earth-not widely available
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3. Describe ways to conserve energy.
recycle
turn off water
shutting off lights
unplugging things
etc.