Activity Sheet No. 1 - ferdez Grade & Section: 69-led Date Answered: 3/5/2015 Score: UNIFORMLY ACCELERATED MOTION A. Directions: Write the word True if the statement is correct, if not write Eallse 1. The uniform motion indicates a constant velocity and covers the same amount of distance at a constant time interval. 2. In UAM, positive constant acceleration will result in a continuous increase in velocity. 3. Changing direction is also considered a manifestation of acceleration. 4. The velocity of the object thrown upward is maximum at the maximum height. 5. Objects moving under UAM will always have a constant velocity. 6. In free fall, the force acting on the object is only gravity. 7. Negative acceleration can continuously decrease the acceleration of a moving object 8. The velocity of dropped objects will be at maximum just the moment they hit the ground. 9. The graph of distance versus time of object under uniformly accelerated motion will manifest a curve or parabolic graph. 10. The graph of distance versus time of object under uniform motion will manifest a curve or parabolic graph. B. Write TRUE in the space provided if the following statements are correct and if false, change the underlined word or phrase to make the statement/s correct. 1. As the projectile reaches its highest peak, the vertical velocity continuously increases 2. When an object is horizontally launched its velocity is gradually increases. 3. In an angle-launched projectile the vertical velocity remains constant. 4. As the projectile reaches the maximum height its vertical velocity becomes zero. 5. The horizontal acceleration (ax) of a projectile is equal to -9.8m/s² 6. The horizontal velocity in a horizontally launched projectile is constant. 7. In angle-launched projectile, as the projectile rises its vertical velocity decreases. 8. The acceleration due to gravity is equal to zero. 9. As a projectile approaches the ground its vertical velocity decreases. 10.There is an external force acting on the horizontal motion of a projectile.
Answer (1)
Answer:A. Directions: Write the word True if the statement is correct, if not write FalseTrue. The uniform motion indicates a constant velocity and covers the same amount of distance at a constant time interval.True. In UAM, positive constant acceleration will result in a continuous increase in velocity.True. Changing direction is also considered a manifestation of acceleration.False. The velocity of the object thrown upward is maximum at the maximum height. (Correction: The velocity of the object thrown upward is minimum (zero) at the maximum height.)False. Objects moving under UAM will always have a constant velocity. (Correction: Objects moving under UAM will always have a changing velocity.)True. In free fall, the force acting on the object is only gravity.False. Negative acceleration can continuously decrease the acceleration of a moving object (Correction: Negative acceleration can continuously decrease the velocity of a moving object)True. The velocity of dropped objects will be at maximum just the moment they hit the ground.True. The graph of distance versus time of object under uniformly accelerated motion will manifest a curve or parabolic graph.False. The graph of distance versus time of object under uniform motion will manifest a curve or parabolic graph. (Correction: The graph of distance versus time of object under uniform motion will manifest a straight line graph.)B. Write TRUE in the space provided if the following statements are correct and if false, change the underlined word or phrase to make the statement/s correct.False. As the projectile reaches its highest peak, the vertical velocity continuously decreases.False. When an object is horizontally launched its velocity is gradually constant. (Assuming "its velocity" refers to horizontal velocity. If it refers to overall velocity, it's increasing, but horizontal component is constant).False. In an angle-launched projectile the vertical velocity changes.True. As the projectile reaches the maximum height its vertical velocity becomes zero.False. The horizontal acceleration (ax) of a projectile is equal to zero m/s².True. The horizontal velocity in a horizontally launched projectile is constant.True. In angle-launched projectile, as the projectile rises its vertical velocity decreases.False. The acceleration due to gravity is equal to 9.8 m/s² (approximately) or non-zero.False. As a projectile approaches the ground its vertical velocity increases.False. There is no external force acting on the horizontal motion of a projectile. (Ignoring air resistance).
