are using vinegar and water as reactants and changing the concentration every time to see the difference between the rates of reactions speed. Materials: - 1 graduated cylinder - 1 film canister - Vinegar - Water - Phone (as timer) - 2 Alka-Seltzer tablets - Electronic scale Procedure: 1. Fill the graduated cylinder with 10ml of vinegar and put it in the clean film canister. 2. Break the Alka-Seltzer tablets to two parts from the middle‚ measure both parts on the electronic scale (half
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A diesel engine (also known as a compression-ignition engine and sometimes capitalized as Diesel engine) is an internal combustion engine that uses the heat of compression to initiate ignition to burn the fuel‚ which is injected into the combustion chamber. This is in contrast to spark-ignition engines such as a petrol engine (gasoline engine) or gas engine (using a gaseous fuel as opposed to gasoline)‚ which uses a spark plug to ignite an air-fuel mixture. The engine was developed by Rudolf Diesel
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unleaded fuel engines better known as gasoline engines are actually very similar. They are both internal combustion engines which is to convert the chemical energy in fuel into mechanical energy. This mechanical energy moves pistons up and down inside cylinders. The pistons are connected to a crankshaft‚ and the up-and-down motion of the pistons‚ known as linear motion‚ creates a force to the flywheel the from the flywheel to the transmission. The working principle of diesel engines was established in 1893
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equipment correctly‚ and perform labs safely. Students will also use significant digits in measurement and calculations. Hypothesis: If the mass and volume of a substance increase‚ then the density will increase as well. Materials: 100 mL graduated cylinder Paper towels Copper bb’s Electronic balance Pre-Lab Questions: 1) The density of copper is 8.92 g/mL. 2) The density of steel is 7.85 g/cm³ 3) There is only one type of copper‚ so the density should be one specific density. However‚ there
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Grade 9 Task Term 3 Hydraulics and Pneumatics Section: A 1. a) Good examples of hydraulic systems include automotive brakes‚ and the control systems of large aircraft. Hydraulic systems supply forces somewhere remote from where it is practical to locate large machinery. Hydraulics gives high forces with low losses‚ thanks to the virtual incompressibility of hydraulic fluids. Pneumatics is usually less efficient‚ though simpler since the "reservoir" in the circuit is the atmosphere
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Balance * Metal Cylinder (AS Compliant) * Metal Scoop * Tamping Steel Rod Test Procedure 1. Determine the weight and volume of the cylinder (for lab experiment written on side). 2. For the mixed aggregates ensure they are well mixed. Now fill the cylinder with the aggregate to 1/3 the height of the cylinder using the scoop. 3. Compact the aggregate with the tamping rod giving 25 strokes without touching the bottom of the cylinder then stomp the cylinder on the ground 3 times
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Error Analysis Lab By: Lab Team 5 Introduction and Background: In the process of learning about the importance of measurement and data processing‚ lab teams were given prompts to design experiments as well as address the precision‚ accuracy‚ and error analysis within the experiment. Lab teams collaborated their data to find similarities and differences within their measurements. Through this process‚ students learned the importance of the amount of uncertainty as well as the different
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in a wooden box. Inside the box‚ there was an inclined shelf with slits big enough for the seeds to fall through. That is where you placed the un-processed cotton. Connected to the box‚ there was a wooden cylinder with metal spiked teeth that pulled the fibers from the cotton bolls. This cylinder pulled the cotton through a small slit in a metal breastplate. The slits were too small for the seeds to pass through‚ so the seeds fell through the slits in the shelf where the cotton was placed. Once the
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. . . . . . . . . . . . . 16 Flow valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Non-return valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Energy transfer and
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densest compared to the others. Lab Procedures: 1. Obtain the mass of your 100-mL graduated cylinder. Make sure it is dry before you weigh it out. 2. Add 20-25 mL of distilled water to the graduated cylinder. Measure the volume of the water very carefully. After: Measure the combined mass using an electronic balance. 3. Add another 20-25 mL of distilled water to the graduated cylinder. Measure it carefully. 4. Repeat step 3 to obtain a third set of mass and volume measurements
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