UNIT 6 – M3 - Swarnim Ghale To describe each stage: Method 1:- All of us were given the following equipment: Ramp, foam block with weight, meter ruler, jack and stop-watch. * Firstly, we placed the Jack underneath the beginning line of the ramp in order to vary the height between the ramp and the ground. Then, the foam-block (with some weights) was at the end of the ramp. * The five different heights: 0.10m, 0.15m, 0.20m, 0.25m and 0.30m were chosen. * At each height, we placed the trolley at the top (start line) of the ramp and held it with the meter ruler.
Place temperature probe through hole in cardboard lid and position probe about 1cm above bottom of calorimeter 15. Obtain an exact mass of hot water (~50mL) d. Should be approx. 45-60C above room temperature 16. Record temperature of cold water and hot water immediately before mixing the two. 17.
Procedure 3: The Compound Pendulum The aim of this experiment is to determine the value of the acceleration due to gravity by measuring the period of oscillation of the pendulum when suspended from different distances from its centre of mass. A pendulum consisting of any swinging rigid body which is free to rotate about a fixed horizontal axis is called a compound pendulum. This experiment had to be carried out at Glasgow University as the required equipment was not available at school. Procedure 1) The pendulum was balanced on a large brass knife edge to determine the position of the centre of mass of the pendulum. 2) The larger moveable knife edge was then clamped to the pendulum, at a small distance (1cm) above the centre of mass.
Make sure the launch range is clear of any obstructions. 2. Using the Plumb Bob and sticky note, mark the floor underneath the launch point. Measure the height of the launch point using the metric ruler once per person and take an average. 3.
7. Collect 10 drops of pectinase, cellulase, and distilled water from teacher. 8. Proceed to carefully place 10 drops of pectinase into first funnel. 9.
8. Add 10 drops of Calmagite using an eye dropper 9. Record the initial buret volume and conduct a practice titration to find the endpoint. Stop titration when the red solution turns blue. 10.
Find the mass of the 5 dry pennies, then record the data. 2. Add 5 more pennies to the first group for the mass of 10 pennies, record mass. 3. Repeat step two, then continue adding 5 dry pennies each step to balance until you have used all 30 pennies 4.
G. Take pulse for 10 seconds and multiply by 6. ___630___ H. Do 3 to 5 minutes of stretching exercises. I. Take pulse for 10 seconds and multiply by 6. __934____ J.
We removed one of the fishing lines, and timed how long the pendulum would take to swing back and forth ten times (ten periods). We chose to time it for ten periods rather than one because the data would be more reliable and consistent. After recording this time in our data table and dividing by the number of times we allowed the pendulum to swing (ten) to find the period, we repeated this process four more times, each time with a different length of string. We recorded the length and period for each of the five trials. Through both qualitative observation, and our quantitative data, we deduced that the shorter the length of a pendulum, the smaller its period.
Write each of these correct to 1 significant figure. a) 783 b) 87602 c) 10.49 d) 5049 [4 marks] 8. Remove the brackets and simplify as much as possible. a) 5(2 + 3a) b) 3(4 + 7x) c) 2(b-4c) [3 marks] 9. Solve these for x. a) 2x + 4 = 10 b) 3x + 2 = 14 c) 4x + 5 = 1 [3 marks] 10.