ACTIVITY 3: Science Consensus Posttest (Assessment): Directions: Explain the subtle distinction between Newton's first law of motion Write your answers on the space provided. Use CAPITAL I and Galileo's assertions regarding force and motion by completing the table 1. Which of the following does Galileo believe about motion? below: A. A violent motion is caused by an external force. B. Objects will continue to be in uniform motion if unimpeded. Isaac Newton Concept Galileo Galilei C. Objects move because of their elemental composition. D. Heavier objects fall faster than lighter objects if there is no resistance. 2. According to Galileo, an object in uniform motion will travel a distance that is INERTIA proportional to_ A. time B. acceleration C. velocity D. speed 3. If the object encountered a resistive force from a fluid equal or greater than its weight, it will _ A. have a uniform motion B. accelerate C. disappear D. slow down FORCE 4. According to Galileo's view, which will reach the floor of the vacuum chamber first, a sheet of paper or a bowling ball? A. The bowling ball will reach the vacuum chamber. B. The sheet of paper will reach the vacuum chamber. C. They will reach the floor at the same time. D. They will not reach the floor and will be sucked in the vacuum. BODY AT REST 5. Which of the following is true about the projectile of an arrow when shot? A. It has a continuous applied force from the person who shot the arrow. B. It creates a vacuum that sucks air in, and the air pushes the arrow. C. It rises because arrows are mostly air. D. It has both uniform motion and uniformly accelerating motion. BODY IN MOTION 6. Which material (s) will reach the ground first if they were dropped simultaneously in vacuum? 1. 50 -gram cotton 1l. 50-g metal Ill. 50-g paper A. I only B. Ill only C. II and Ill only D. I, II & III Short Quiz: 7. A horizontal line in a displacement-time graph represents A. No motion at all C. uniformly accelerated motion A. Write O if the statement is correct, otherwise write X. B. Uniform motion D. uniformly decelerated motion 1. Uniform motion in a straight line is always has zero acceleration. 8. On which quantity does the acceleration of any free-falling object depend? 2. Aristotle believed that a projectile is a combination of uniform motion in the horizontal A. Inertia B. location C. mass D. speed direction and uniformly accelerated motion in the vertical direction. 9. Which statement is not true about Aristotle's view of projectile motion? 3. According to Aristotle, force is necessary to sustain horizontal motion. A. It is classified as a violent motion. B. The air resists the motion of the projectile. 4. Newton's laws of motion are considered empirical in nature because they are self- C. The air pushes the projectile to keep it moving. evident truths. D. A motive force should be given to the projectile to start its motion. 5. According to Galileo, all objects on Earth fall with equal acceleration dependent of 10. Which of the following statements is FALSE about a mango falling toward the their masses. ground? B. On the space provided, write the corresponding number of Newton's law of motion that A. The magnitude of the force the Earth exerts on the mango is greater than the best explains the following situations. Use 1 , and or 3d. magnitude the mango exerts on the Earth. 1. Vehicle must slow down when passing over a curb. B. The force that the mango exerts on Earth is equal in magnitude to the force that the 2. Heavier object tends to accelerate slower than those with light objects. Earth exerts on the mango. C. The mango undergoes the same acceleration as the Earth. 3. Birds fly by flapping their wings down, but the wind beneath their wings keep them D. The mango accelerates at a faster rate. up. 4. A stone at rest budged when it was kicked by a passerby. 5. It is not advisable to punch a concrete wall. Signature of parent/guardian over printed name Quarter 2 Week?_Activity Sheet | 3 Quarter 2 Week2_Activity Sheet | 4 Date Signed