Assignment 8.1: Accuracy, Precision, and Uncertainty (continued) 7. A 1 kg object is weighed four times. The four readings are 1.005 kg, 0.998kg, 0.995 kg, and 1.002 kg. (3 marks) a) Comment on the degree of precision of the measuring device used. b) Comment on the degree of accuracy of the measurements. c) What may cause the measurements to be inaccurate? 8. The accepted measurement for the density of aluminum is 2.70 g/cu cm. After. completing an experiment, Heath found the density of aluminum to be 2.76 g/cu cm 0.06 g/cu cm. Is the accepted value for the density of aluminum within the range of uncertainty that Heath found? Explain why Heath may have received this result. (2marks) M8LE3 Hand-In Assignment Instructions: Provide your response in the space provided on the sheet following the question. Please show as much work as possible to clearly show the steps you used to find the solution. The jig plate in the drawing below is made from material that measures 100 mm x 50 mm and is 10 mm thick, determine the maximum and minimum waste of material in cubic centimetres. 41.50.2 200.4, 88 0.3 All Dimensions Are In Millimetres 5. The following scale diagram represents an arrangement of furniture in a living room. The scale is 1 : 60. sofa end table coffee table small chair love seat Find the actual dimensions of each piece of furniture in metres. 6. The following floor plan of a house is drawn to a scale of 1 in: 15 ft. Bedroom B Bath- room Bedroom A Dining Room Hall Kitchen Living Room a. Find the actual dimensions of each room in the house in feet. b. Find the area of the house. 7. A volleyball court measures 6 m by 9 m. It is drawn with a scale factor of 1 cm: 4 m. a. Find the dimensions of the volleyball court in the scale drawing in centimetres. b. Construct a scale drawing of the volleyball court. 8. Represent a rectangular window, measuring 4 ft by 3 ft with a scale drawing. Use a scale of 1 in: 2 ft.