prueba Ciencias

Science

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    <title>Energy Forms and Transformations</title>
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    <h2>Forms of Energy & Energy Transformations</h2>
    
    <p>1. The ability to do work is called <input type="text" data-answer="energy" placeholder="________">.</p>
    
    <p>2. Energy cannot be created or destroyed, only <input type="text" data-answer="transformed" placeholder="________"> from one form to another.</p>
    
    <p>3. The energy stored in food, fuel, and batteries is called <input type="text" data-answer="chemical energy" placeholder="________">.</p>
    
    <p>4. The energy of moving objects is called <input type="text" data-answer="kinetic energy" placeholder="________">.</p>
    
    <p>5. The energy stored in an object due to its position is <input type="text" data-answer="potential energy" placeholder="________">.</p>
    
    <p>6. The energy carried by moving electrons in a circuit is called <input type="text" data-answer="electrical energy" placeholder="________">.</p>
    
    <p>7. When you turn on a light bulb, electrical energy is transformed into <input type="text" data-answer="light" placeholder="________"> and <input type="text" data-answer="heat" placeholder="________"> energy.</p>
    
    <p>8. In a wind turbine, <input type="text" data-answer="wind energy" placeholder="________"> is converted into electrical energy.</p>
    
    <p>9. Solar panels convert <input type="text" data-answer="solar energy" placeholder="________"> into electricity.</p>
    
    <p>10. A stretched rubber band has <input type="text" data-answer="elastic potential energy" placeholder="________"> stored in it.</p>
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Grammar

English as a Second Language (ESL)

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<head>
    <title>Exercise - Passive Voice</title>
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<body>
    <h2>Exercise 1</h2>
    <p>Change the active sentences to passive.</p>
    <ol>
        <li>Waitresses and waiters serve customers. <input type="text" name="q1"></li>
        <li>The teacher is going to explain the lesson. <input type="text" name="q2"></li>
        <li>Two horses were pulling the farmer's wagon. <input type="text" name="q3"></li>
        <li>Toshi will invite Yoko to the party. <input type="text" name="q4"></li>
        <li>Alex is preparing that report. <input type="text" name="q5"></li>
        <li>Kathy had returned the book to the library. <input type="text" name="q6"></li>
        <li>Miriam has designed several public buildings. <input type="text" name="q7"></li>
        <li>His tricks won't fool me. <input type="text" name="q8"></li>
        <li>I didn't write that note. Did Jim write it? <input type="text" name="q9"></li>
        <li>Does Prof. Shapiro teach that course? No, he doesn't teach it. <input type="text" name="q10"></li>
        <li>Mrs. Andrews hasn't signed those papers yet. Has Mr. Andrews signed those papers yet? <input type="text" name="q11"></li>
    </ol>
    
    <h2>Exercise 2</h2>
    <p>Complete the sentences with the passive form of the verbs in the list. Use any appropriate tense.</p>
    <p><strong>build, divide, invent, order, surprise, cause, expect, kill, report, surround, confuse, frighten, offer, spell, wear</strong></p>
    <ol>
        <li>The electric light bulb <input type="text" name="q12"> by Thomas Edison in 1879.</li>
        <li>An island <input type="text" name="q13"> by water.</li>
        <li>The -ing form of sit <input type="text" name="q14"> with a double "t."</li>
        <li>Even though construction costs are high, a new dormitory <input type="text" name="q15"> next year.</li>
        <li>The class was too large last semester, so it <input type="text" name="q16"> into two sections.</li>
        <li>A bracelet <input type="text" name="q17"> around the wrist.</li>
        <li>The Johnsons' house burned down. According to the inspector, the fire <input type="text" name="q18"> by lightning.</li>
        <li>Al got a ticket for reckless driving. When he went to traffic court, he <input type="text" name="q19"> to pay a large fine.</li>
        <li>I read about a hunter who accidentally <input type="text" name="q20"> by another hunter.</li>
        <li>The hunter's fatal accident <input type="text" name="q21"> in the newspaper yesterday.</li>
        <li>I didn't expect Lisa to come to the meeting last night, but she was there. I <input type="text" name="q22"> to see her.</li>
        <li>Last week I <input type="text" name="q23"> a job at a local bank, but I didn't accept it.</li>
        <li>The children <input type="text" name="q24"> in the middle of the night when they heard strange noises in the house.</li>
        <li>Could you explain this math problem to me? Yesterday in class I <input type="text" name="q25"> by the teacher's explanation.</li>
        <li>A: Is the plane going to be late?</li>
        <li>B: No. It <input type="text" name="q26"> to be on time.</li>
    </ol>
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The parts of a motorcycle and their functions

Engineering

The parts of a motorcycle and their functions

Anatomy of a motorcycle

To the average bystander, motorcycles may appear to be nothing more than bicycles with engines. In fact, motorcycles are complex, finely tuned machines with many mechanical parts.

There are several different kinds of motorcycles, and most of them share the same basic foundational design. Here are the five main categories of motorcycle types:

  1. Standard bikes: general use motorcycles with upright seating positions
  2. Cruisers: large bikes with vintage designs and low-slung profiles 
  3. Touring bikes: heavy bikes with large engines and luggage storage
  4. Sportbikes: lightweight motorcycles that prioritize performance
  5. Dirt bikes: lightweight motorcycles designed for offroad use

Any motorcycle you ride has an engine, a chassis, a transmission and a set of wheels. By changing the sizes and features of these components, you can customize your motorcycle to produce different performance and riding results.

Below, we break down these basic motorcycle parts and the roles they each play in making your bike function.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Engine

The beating heart of any motorcycle is its engine, even if the bike is an electric vehicle with a motor and battery.

Chassis

The chassis is the skeletal structure of a motorcycle.

Front fork

Your motorcycle’s steering and handling are made possible by the front fork. The handlebars connect to fork tubes on either side of the front wheel that house hydraulic springs in the suspension;

Frame

Arguably the most important part of the chassis is the frame, the central element of the chassis upon which the rest of the motorcycle sits.

Suspension

Keeping your motorcycle grounded and your ride smooth is the job of the suspension. Both front and rear suspension setups are common.

Transmission

For power to flow from the engine through the drivetrain, a transmission is needed. The transmission is activated via the hand clutch when shifting gears, propelling the bike forward with torque produced by the engine. T

Other parts of the transmission that help your bike get going and stay moving include:

  • Ignition switch: a handlebar-mounted, key-operated switch that controls the flow of power to the rest of the motorcycle
  • Starter pedal: once the ignition switch is activated and power is released through the bike, this pedal allows the rider to start the bike
  • Foot shifter: allows the rider to shift gears up or down with a foot control that’s located near the footrests
  • Hand clutch: handlebar-located control that disconnects the clutch from the engine, allowing the rider to safely proceed with a gear shift

Wheels 

The wheels and tires on your motorcycle will significantly affect its capabilities and performance. Tire ratings exist for street use, high-speed riding, off-road adventures and more riding scenarios.

Instrument display

The display, or instrument cluster, is the central computer system on your motorcycle

 

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