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Air and Water in the Flow
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Physics Pro 2014 Part 1.indd 39
8/1/14 1:27 PM
Страница 1: ...uttgart Germany 49 0 711 2191 0 www kosmos de Thames Kosmos 301 Friendship St Providence RI 02903 USA 1 800 587 2872 www thamesandkosmos com Thames Kosmos UK Ltd Goudhurst Kent TN17 2QZ United Kingdom 01580 212000 www thamesandkosmos co uk EXPERIMENT MANUAL ...
Страница 2: ...1 23 Turbine blade 16 702815 43 24 36 35 29 37 14 15 28 19 13 31 22 4 20 42 5 3 2 No Description Count Item No 24 Rubber band long 1 703241 25 Rubber band medium 1 703374 26 Cotton cord white 1 703244 28 Wheel 2 703230 29 Tire ring medium pulley wheel 2 703251 30 Anchor pin lever 1 702590 Part separator tool 31 Crank 2 703377 32 Straw red 2 703513 33 Digging shovel 1 703514 34 Experiment book not ...
Страница 3: ...39 21 20 19 22 23 24 Air and Water in the Flow 3 3 Physics Pro 2014 Part 1 indd 39 8 1 14 1 27 PM ...
Страница 4: ...ow part of a tube the pressure also increases in the direction of flow But an increase in pressure also means an increase in force per unit of area and thus an increase in the distance the narrower stream of water can shoot Pressure in currents THE FLOW EQUATION If you multiply the large cross sectional area A1 by the corresponding velocity v1 the product is the same as when you multiply the small...
Страница 5: ...f the work performed to the time needed to do it In addition to watts kilowatts 1 kW 1 000 W and megawatts 1 mW 1 000 000 W are also used as units of power The engine of a mid sized car handles about 60 kW A human can perform about 200 watts of physical work over a long period of time while a cyclist with a bicycle can get to 1 500 watts fairly quickly Work is measured independent of the time it t...
Страница 6: ...brake pedal to the main cylinder From there the braking force is transferred equally by separate pathways to the braking cylinders on the wheels Big and heavy vehicles e g a tour bus or dredger have so called servo brakes which amplify the braking force through a pump This model is like the racing car model page 89 but without the drive spring Test the hydraulic brake by pushing against the car s ...
