
FORMATIVE ASSESSMENT IN SCIENCE GRADE 9
Quiz by CID Office SDO Balanga
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10 questions
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- Q1Metal salts when heated produce different colors because of the absorption of heat from the flame. Which of the following does NOT describe the flame color of the compound when heated?Boric acid - greenSodium chloride - orangeCopper (II) sulfate – blue- greenPotassium chloride – yellow30s
- Q2Bohr’s atomic model describes the atom like a solar system, where the electrons are found only in a specific circular path which are represented by symbol “n”. What does the symbol “n” in the Bohr’s theory of atomic structure represents?The total energy of the atom.The orbit in which an electron is found.The number of electrons in an energy level.The energy of electron.30s
- Q3What will happen when an electron moves from a higher energy level to a lower energy level?The atom moves faster.This process is not possible.Another electron goes up from a lower to a higher energy level.Colored light is given off.30s
- Q4A toy was stucked high up in a tree. Children are throwing their slippers to hit the toy and eventually free it from the branches of the tree. Which angle of release would most likely be useful to accomplish the task of getting the toy back?60⁰90⁰30⁰45⁰30s
- Q5For a cannonball to be shot the farthest, which angle of release is most appropriate?30⁰60⁰90⁰45⁰30s
- Q6A pingpong ball is tossed upward. When the ball is at its highest point, which statement best describes the ball's velocity and acceleration?Its velocity is zero and its acceleration is not zero.Both its velocity and acceleration are zeroBoth its velocity and acceleration are not zero.Its velocity is not zero and its acceleration is zero.30s
- Q7A steel ball is rolled horizontally off a high platform at 12.0 m/s. It falls and hits the ground 18.0 m below. How long does the ball stay in the air?t=2.5st=2.0 st=1.75 st=3.0 s30s
- Q8A rock is rolled horizontally off a high platform at 12.0 m/s. It falls and hits the ground 18.0 m below.How far from the base of the platform does the rock hit the ground?dx=10.0mdx=15.0mdx=21.0mdx=18.0m30s
- Q9The unknown element has a single orbital of 4d sublevel , what is the maximum number of electrons does it may contain?2541030s
- Q10The last entering electrons of Lithium and Berrylium have the samen onlyn and lml and msn and ms30s