PERFORMANCE TASK #1D IN GENERAL PHYSICS 1 QUARTER 1 Directions: Choose the letter that corresponds to the best answer. Write your answer on the answer sheet provided. 1. Describe the motion of the ball that is thrown up in the air as illustrated by the picture to the right? Which of the following is true about the ball's velocity at the highest point B? A. Its velocity is zero. B. Its velocity is constant. 2. What is the acceleration of a body that moves at a rate of 2 m/s to 6 m/s in 4s? A. 0.5 m/s 3. A man runs 30 m long up a hill at an elevation of 30° above the horizontal. What is his vertical displacement? C. Its velocity is increasing. D. Its velocity is decreasing. B. 1 m/s? C. 1.5 m/s? D. 2 m/s B. 26 m C. 15 m A. 30 m 4. How long does a high pitched ball with an acceleration of 2.0 m/s? take to go from 10 m/s to 30 m/s? A. 10 s D. 0m B. 20 s C. 30 s D. 40 s 5. An airplane lands an initial velocity of 70.0 m/s and then accelerates opposite to the motion at 1.50 m/s² for 40.0 s. What is its final velocity? A. 70 m/s C. 10 m/s D. 1.50 m/s B. 40 m/s
Displacement, Velocity and Acceleration
In classical mechanics, kinematics deals with the motion of a particle. It deals only with the position, velocity, acceleration, and displacement of a particle. It has no concern about the source of motion.
Linear Displacement
The term "displacement" refers to when something shifts away from its original "location," and "linear" refers to a straight line. As a result, “Linear Displacement” can be described as the movement of an object in a straight line along a single axis, for example, from side to side or up and down. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Linear displacement is usually measured in millimeters or inches and may be positive or negative.
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