Lab Report: pH Name: _________________________________________________________ Materials Needed You will need the following materials for this lab. • • • • • • • • • • • • • Red cabbage Coffee filter or paper towel Container for water (at least 250 ml or 1 / 2 pint) Three transparent cups (about 100 ml or 3 ounces) or other similar containers Hot water (e.g.‚ from a faucet‚ heated in a microwave oven‚ etc.) Thermometer Vinegar Baking soda Safety goggles Tongs or fork Eyedropper or drinking
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marker ink. You can also calculate a ratio Rf‚ which compares how far each compound traveled to how far each solvent (substance that dissolves another substance) traveled during the experiment. Rf = Ds/Df Ds = Distance traveled by the compound Df = Distance traveled by the solvent Materials: coffee filter‚ tape‚ rubbing alcohol‚ water‚ 3 different color magic markers (not permanent); 3 identical tall‚ narrow drinking glasses; metric ruler‚ 3 pencils Pre-lab Questions: 1. List
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professor Lab #3 Free Fall With Air Resistance The experiments in this lab will demonstrate the relationship between air resistance and acceleration of an object during free fall.To calculate the acceleration you will use the following formula: 2 delta x/ t^2 In this lab you will drop coffee filters from a height of one meter. You will measure their acceleration by measuring the vertical distance and the time that coffee filters take in traveling that distance. Objectives After completing
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Answer the following in complete sentences: (2 points) 1. List one extensive and one intensive property of marker ink. 2. Define mixture. MATERIALS: coffee filter Tape rubbing alcohol water 3 different color magic markers (not permanent) 3 identical tall‚ narrow drinking glasses metric ruler 3 pencils PROCEDURE: 1. Cut 3 strips of coffee filter. Be sure that the strips are much narrower and slightly taller than the drinking glasses. 2. In the center the strips‚ about 3 cm from one end‚ place a
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Procedure: 1. Cut a white cotton t-shirt into 4 strips that are 10 by 3cm‚ and cut a coffee filter into quarters. 2. Draw a 5cm line on each of the pieces that you just cut out. 3. Pour 250mL of water into a bowl that is wide enough to fit your strips of fabric. 4. Place one strip of fabric into the bowl of water. Set a timer for 20 minutes. 5. After the 20 minutes is up start a stopwatch and scrub the fabric for up to 5 minutes. 6. When the marker has dissolved out of the fabric stop the
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First thing is to make your hypothesis on how to filter dirty water like mine “My hypothesis is if I use one cut bottle and layer it to be pebbles‚ sand‚ cloth‚ charcoal‚ then cloth‚ sand‚ and pebbles it filter the water will be cleaned.”. Then you start to build hypothesis‚ so start by getting a bottle‚ cut the bottom of the bottle like two inches of it. You take the cap off the bottle then get two coffee filter and use two rubber bands to tie it to the cap of the bottom. Then add about a inch of
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surface area of a coffee filter affects the average velocity of the coffee filter from the same height. • Variables: o Independent Variable ▪ Surface area- The area of the surface after the folds have been made o Dependent Variable ▪ The Average velocity- calculated by measuring the time and dividing by the distance to find the Average Velocity o Controls ▪ Coffee Filter ▪ Mass of Filter ▪
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The following describes filter types‚ what they do and how they perform. Along with definitions and detailed graphs‚ we are hopeful this information is both useful and informative. Filter Types Monolithic Crystal Filters 2 Quartz resonator internally coupled utilizing piezoelectric effect. Discrete Crystal Filter Single quartz resonator with external components utilizing the piezoelectric effect. Notch filters Crystal or Discrete component filter that passes all frequencies
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FILTERS: Filters of some sort are essential to the operation of most electronic circuits. Filters and Signals: What Does a Filter Do? In circuit theory‚ a filter is an electrical network that alters the amplitude and/or phase characteristics of a signal with respect to frequency. Ideally‚ a filter will not add new frequencies to the input signal‚ nor will it change the component frequencies of that signal‚ but it will change the relative amplitudes of the various frequency components and/or
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Links: ANALOG FILTERS Up to Book Cover Filter Wizard App Data Converters Page CHAPTER 8 ANALOG FILTERS SECTION 8.1: INTRODUCTION SECTION 8.2: THE TRANSFER FUNCTION THE S-PLANE FO and Q HIGH-PASS FILTER BAND-PASS FILTER BAND-REJECT (NOTCH) FILTER ALL-PASS FILTER PHASE RESPONSE THE EFFECT OF NONLINEAR PHASE SECTION 8.3: TIME DOMAIN RESPONSE IMPULSE RESPONSE STEP RESPONSE SECTION 8.4: STANDARD RESPONSES BUTTERWORTH CHEBYSHEV BESSEL LINEAR PHASE with EQUIRIPPLE ERROR
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