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Energy flashcards

Terms in this set (20)

what is energy: The capacity or power to do work
True
what is kinetic and potential
kinetic is a form of energy that an object has by reason of its motion and potential is the energy that is stored in an object
what is renewable energy
a natural resource that cannot be used up or it is one that can be replaced within a human life span
which one is Renewable energy
1. oil
2. Biofuels
3. coal
4. Natural gas
biofuels
which one is a form of kinetic energy
1. a ball about to fall off the table
2. someone on top of the slide
3. a moving train
4. a soccer ball about to be kicked
a moving train
what is the form of potential energy
1. a ball about to fall down a slide
2. people moving and playing
3. a kid going down a slide
4. a roller coaster moving down the rails
a ball about to fall down a slide
energy can be destroyed
False
The faster and object moves or the greater its mass the greater its store of kinetic energy
True
the higher and object is or the greater its mass the greater its stores of kinetic energy
True
When a roller coaster accelerates downhill, energy is transferred from its store of KE to its store of GPE
False
Sources of energy that will never run out are called
renewable energy
Whats a example of GPE
1. a dog sleeping
2. a roller coaster
3. a plane on the ground
a roller coaster
Renewable energy resources contribute far less to climate Chang than fossil fuels
True
source of renewable energy include solar, biofuels, wind, hydroelectric, and geothermal
True
what is solar energy
light and heat that come from the sun and turns into electrical energy
Biofuels is any fuel that is comes from nonliving resources
False
What is wind energy
Energy that can be capered by wind turbines
Hydroelectricity is the process by which we convert water into electricity
True
What is Geothermal energy
1. Water from the lake flows through pipes to turbines at the bottom of the dam
2. heated from earth core from radiation
3. This solid fuel formed from the fossilized remains of trees and other plants
4. Geothermal energy is cold water pumped deep underground, where it is heated to make stem by energy from Earth's interior
Geothermal energy is cold water pumped deep underground, where it is heated to make stem by energy from Earth's interior
What is GPE
Gravitational potential energy is the energy an object has due to its position above Earth
Verified questions
question
The Greenville, South Carolina Real Estate Hub maintains track of home sales in their area. They reported that sales were down in 2010 by about $3.7 \%$ from the previous year. Here is the number of homes sold in Greenville for the last 5 months of 2009 and 2010: $$ \begin{array}{lccccc} & \text { August } & \text { September } & \text { October } & \text { November } & \text { December } \\ 2010 & 475 & 466 & 502 & 423 & 495 \\ 2009 & 607 & 597 & 596 & 581 & 447\end{array} $$ a) What percent of all homes in these ten months were sold in October of 2009?
Verified answer
economics
Find the average number of children that will be born to a couple before the gender requirement is met if $m=0.51$, the observed proportion of male births in the United States; that is, find $A(0.51)$.
Verified answer
finance
Prepare Journal entries to record the following transactions, assuming perpetual inventory updating, and last-in, first-out (LIFO) cost allocation. Assume no beginning inventory. | | **Number of Units** | **Unit Cost** | |---------------------------------------------|:-------------------:|:-------------:| | Mar. 12, purchased merchandise for resale | 5,000 | $90 | | Mar. 15, purchased merchandise for resale | 3,500 | 100 | | Mar. 16, sold merchandise for$200 per unit | 2,000 | |
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question
Résumés usually include an employment objective. Write three different employment objectives for different types of jobs. Make your objectives brief and to the point, and use the active voice.
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