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| SYSTEMS PREPARATION 2007 - QUESTIONS - 1 |
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| V. Ryan © 2007-2017 |
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| PDF FILE - CLICK HERE FOR PRINTABLE WORKSHEET |
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| 1. Diesel trains are used throughout the country. They
use diesel as a fuel for engines which drive the train forwards at high
speed, creating movement. Complete the systems diagram below to show the
main energy changes. |
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| ANSWER |
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| 2. What is Kinetic Energy ? |
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| ANSWER |
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| The energy a body possesses because it is
moving. |
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| 3. The train seen below is at the top of an incline. At
any point it could roll downwards, gathering speed. What is potential
energy? |
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| Potential energy is: |
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| ANSWER |
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| The energy which a body has because of its position, eg.
a coiled spring or a train at the top of a hill. |
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| 4. The train at the bottom of the steep incline has a
special gear system. On the diagram the gear system is marked A and B.
What are the correct names for parts A and B ? |
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| PART
A:_______________________________________ |
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| PART
B:_______________________________________ |
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| ANSWERS |
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| PART A: Pinion |
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| PART B: Rack |
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| 5. Explain why the gear system shown above is used where
there are speed inclines. |
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| ANSWER |
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| Trains cannot travel up steep inclines as their wheels
have no grip. The rack and pinion allows the train to grip the track. The
pinion is a special gear. Its teeth ‘mesh’ with the teeth on the rack,
pulling the train up the incline. |
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