October 2, 2019 /30 Name: _____________________________________ Part 1- Multiple choice 1) Choose the accurate statement a. The moon orbits the sun b. Our solar system orbits the centre of our galaxy c. Our galaxy orbits our planet d. Our sun orbits around our planet 2) What is the name of the telescope in space which gave us photographs of galaxies? a. The Humble telescope b. The Bubble telescope c. The Einstein telescope d. The Hubble telescope 3) Which of the following is NOT a condition necessary for life to form? a. A very long time b. Lightning c. Liquid water d. An energy source 0 1 2 3 Part 2- Short Answer 4) The kilometre, the astronomical unit and the light year are three units of measurement used to calculate distances. Which would be used to calculate each of the following? a) the distance between Earth and Voyageur 1 _____________________ b) the distance between Earth and the black hole at the centre of our the Milky Way _____________________ c) the distance between HSB and Montreal _____________________ d) the distance between two galaxies _____________________ 0 1 2 3 4 5) Which of the four geological eras is described in each of the following examples? a) era in which we live at present ____________________________ b) the era in which life began on Earth ___________________________ c) era during which the dinosaurs lived in Earth _______________________ d) era that ended with the biggest extinction event ever ____________________ Answers 0 1 3 4 2 3 4 0 1 2 0 1 2 Spelling 0 1 6) Carefully study the illustration at right. It shows fossils of different species in three separate layers. Each layer is numbered 1 to 3. Which number represents the oldest layer? _________________ What is the name for these types of layers? _________________ 7) What have you learned about galaxies in this class? October 2, 2019 Name: _____________________________________ Part 3- Multiple choice Density π π·= π Material Density (g/cm3) Oak wood 0.60 - 0.90 Steel 7.75 - 8.05 Pyrite 5.01 Aluminium 2.7 Antimony 6.6 Polypropylene 0.85 - 0.95 Magnetite 4.6 Poplar 0.35 – 0.50 Lignum Vitae 1.17 – 1.25 Iron 7.86 π=πΏπ₯ππ₯π» 8) Choose your answer by looking at the table of materials ο An object has a density of 0.65 What is it made from? a. Steel b. Iron c. Oak wood d. Poplar 9) What is the density of an object with a mass of 200g and a volume of 150cm3 a. 2.66 g/cm3 b. 1.33 g/cm3 c. 0.33 g/cm3 d. 0.75 g/cm3 10) When a cube has a side that is 5cm long and a mass of 190g what is its density? a. 12.66 g/cm3 b. 1.52 g/cm3 c. 7.6 g/cm3 d. 38.0 g/cm3 0 1 2 3 Part 4- Short Answer Density 11) A metal bracelet was measured to have a mass 425 grams. When the metal bracelet was placed in 120 ml of water, the water level rises to 168 ml. What is the density of the metal bracelet? 0 1 2 3 12) Jester has 3 different small blocks of wood, all with the same dimensions of 2.5 cm x 5 cm x 10 cm. He measures the mass of each block and records them as follows: Block A = 56.25 g Block B = 94.38 g Block C = 47 500 mg He does a search on the internet and finds the following density table that follows. Show your work properly to calculate the volume of the blocks (all the same size). Then calculate the density of each of the 3 blocks. Finally, use the density table to identify each of the 3 blocks of wood. Type of Wood Density Ash 0.67 g/cm3 Aspen 0.42 g/cm3 Birch 0.67 g/cm3 Cedar 0.38 g/cm3 Maple 0.755 g/cm3 Oak 0.62 g/cm3 Spruce 0.45 g/cm3 Block A Block B Block C Identification Block A: Block B: Block C: 0 1 2 3 4 5 6
