Physics Chapter: Motion and Acceleration
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Questions and Answers

What will be the height from which the stone is thrown, in meters?

  • 24
  • 32 (correct)
  • 40
  • 10
  • What is the total time taken for the stone to reach the ground?

  • 2 s
  • 4 s (correct)
  • 8 s
  • 10 s
  • What is the initial speed of the stone thrown upwards?

  • 16 m/s (correct)
  • 20 m/s
  • 8 m/s
  • 12 m/s
  • What is the final speed of the stone when it hits the ground?

    <p>24 m/s</p> Signup and view all the answers

    Which equation can be used to determine the height from which the stone was thrown?

    <p>h = v_i t + rac{1}{2} g t^2</p> Signup and view all the answers

    What role does gravity play in the motion of the stone?

    <p>It acts in opposition to the upward motion.</p> Signup and view all the answers

    How does the speed of the stone change during its ascent?

    <p>It decreases until it reaches the maximum height.</p> Signup and view all the answers

    What effect does throwing the stone upwards have on its total displacement?

    <p>Total displacement can be calculated as the sum of ascent and descent.</p> Signup and view all the answers

    If the stone took 4 seconds to hit the ground, what implications does it have for the maximum height reached?

    <p>Maximum height can be calculated using the time taken.</p> Signup and view all the answers

    At what moment does the stone experience its maximum speed?

    <p>Just before hitting the ground.</p> Signup and view all the answers

    What does the straight line from t = 0 to t = 3 indicate about the cyclist's motion?

    <p>The cyclist is moving at a constant speed.</p> Signup and view all the answers

    What conclusion can be drawn from the graph being parallel to the t-axis from t = 3 to t = 7?

    <p>The cyclist is maintaining a constant speed.</p> Signup and view all the answers

    How is acceleration represented on a speed-time graph?

    <p>By slopes of the lines.</p> Signup and view all the answers

    If the cyclist is at a speed of 5 m/s from t = 3 to t = 7, what does this mean for their distance traveled?

    <p>The cyclist travels 20 meters.</p> Signup and view all the answers

    What is the total time duration over which the cyclist's speed changes?

    <p>7 seconds</p> Signup and view all the answers

    In the part of the graph where the cyclist is moving at a constant speed, what could have been omitted in the description of the journey?

    <p>Changes in velocity</p> Signup and view all the answers

    How do you calculate the distance traveled in the segment from t = 0 to t = 3?

    <p>Use the area under the graph.</p> Signup and view all the answers

    What can be inferred if the cyclist's speed increases in the graph from t = 0 to t = 3?

    <p>The cyclist is accelerating.</p> Signup and view all the answers

    What information does a speed-time graph provide that is not available on a distance-time graph?

    <p>Changes in speed over time.</p> Signup and view all the answers

    If a cyclist remains at the same speed for a certain duration, what effect does it have on the speed-time graph?

    <p>It creates a horizontal line.</p> Signup and view all the answers

    What is the acceleration of the train?

    <p>3.0 m/s²</p> Signup and view all the answers

    What is the speed of the front of the train when it passes point C?

    <p>28.5 m/s</p> Signup and view all the answers

    What time elapses from when the train passes B to when it passes C?

    <p>2.5 seconds</p> Signup and view all the answers

    If the train's initial speed is 22.5 m/s, how far does it travel in the first 2 seconds?

    <p>60 m</p> Signup and view all the answers

    Given that the distance AB is 50 m, what uniform acceleration would allow the train to pass B 2 seconds after passing A?

    <p>3.125 m/s²</p> Signup and view all the answers

    After passing point B, how does the speed of the train change as it approaches point C?

    <p>Increases steadily</p> Signup and view all the answers

    What formula can be used to find the new speed of the train after passing C?

    <p>v = u + at</p> Signup and view all the answers

    What is the significance of the distance between the telegraph poles in this scenario?

    <p>They serve as reference points for time calculations.</p> Signup and view all the answers

    Which of these statements about the train's motion is true?

    <p>The train travels equal distances in equal time intervals.</p> Signup and view all the answers

    If the train's speed at A is 22.5 m/s, what is its speed at point B just before passing?

    <p>24.5 m/s</p> Signup and view all the answers

    What is the speed of the car at time t = 0?

    <p>25 m s–1</p> Signup and view all the answers

    How long does the car maintain its initial constant speed?

    <p>10 seconds</p> Signup and view all the answers

    During which time interval does the car start to decelerate?

    <p>t = 10 to t = 18 s</p> Signup and view all the answers

    What is the total time taken for the car to reach point B?

    <p>30 seconds</p> Signup and view all the answers

    How long is the car decelerating?

    <p>8 seconds</p> Signup and view all the answers

    What distance does the car cover from A to B?

    <p>526 m</p> Signup and view all the answers

    What is required to find the value of V?

    <p>Total distance and time between points</p> Signup and view all the answers

    What type of motion does the car undergo from t = 10 s to t = 18 s?

    <p>Deceleration</p> Signup and view all the answers

    What is the relationship between the initial speed and the speed at t = 30 s?

    <p>It decreases</p> Signup and view all the answers

    How can you describe the speed-time graph from A to B?

    <p>Two straight lines with one slope representing deceleration</p> Signup and view all the answers

    What is the car's speed between t = 18 s to t = 30 s?

    <p>Constant speed</p> Signup and view all the answers

    What does AB represent in the context of the problem?

    <p>The total distance covered</p> Signup and view all the answers

    What is the speed of train P after 10 seconds of acceleration?

    <p>25 m/s</p> Signup and view all the answers

    At what time does train Q start moving?

    <p>t = 20 s</p> Signup and view all the answers

    What maximum speed does train Q reach during its acceleration?

    <p>40 m/s</p> Signup and view all the answers

    After 10 seconds, what is the speed of train P?

    <p>25 m/s</p> Signup and view all the answers

    How long does train P accelerate before reaching its constant speed?

    <p>10 seconds</p> Signup and view all the answers

    What is the acceleration of both trains before they reach their constant speeds?

    <p>2.5 m/s²</p> Signup and view all the answers

    At what time will both trains reach their constant speeds?

    <p>t = 20 s</p> Signup and view all the answers

    What is the relative speed difference between train P and train Q after train Q has reached its maximum speed?

    <p>10 m/s</p> Signup and view all the answers

    What time does train Q overtake train P?

    <p>t = 40 s</p> Signup and view all the answers

    What is the distance covered by train P during the acceleration phase?

    <p>75 m</p> Signup and view all the answers

    During which time period does train Q have a higher speed than train P?

    <p>From t = 20 s to t = 30 s</p> Signup and view all the answers

    How long does it take for train Q to accelerate to its maximum speed?

    <p>10 seconds</p> Signup and view all the answers

    Which train has a greater maximum speed?

    <p>Train Q</p> Signup and view all the answers

    At what point in time do both trains have the same speed?

    <p>t = 30 s</p> Signup and view all the answers

    What is the greatest height above point A that the ball reaches?

    <p>23.5 m</p> Signup and view all the answers

    What formula can be used to find the speed of the ball just before it hits the ground?

    <p>v = \sqrt{u^2 + 2gh}</p> Signup and view all the answers

    How long does it take for the ball to hit the ground after being projected?

    <p>3.0 s</p> Signup and view all the answers

    If the acceleration due to gravity is $9.8 , \text{m/s}^2$, what is the maximum height reached by the ball from the ground?

    <p>25.5 m</p> Signup and view all the answers

    What happens to the ball after it is projected upwards?

    <p>It decelerates until it stops and then accelerates downwards.</p> Signup and view all the answers

    At the top of its flight, what is the speed of the ball?

    <p>0 m/s</p> Signup and view all the answers

    What effect does air resistance have on the motion of the ball?

    <p>It reduces the ball's maximum height.</p> Signup and view all the answers

    If the ball were thrown with a speed of 30 m/s, what would be the new maximum height above A?

    <p>45.9 m</p> Signup and view all the answers

    If the initial height from which the ball was projected were increased to 3 m, how would the ground speed change?

    <p>It would increase.</p> Signup and view all the answers

    What distance does the ball travel after reaching its maximum height until it hits the ground?

    <p>The same distance it travels upwards.</p> Signup and view all the answers

    Which of the following factors does NOT affect the time it takes for the ball to hit the ground?

    <p>The weight of the ball.</p> Signup and view all the answers

    When the ball is at half of its maximum height, which of the following statements is true?

    <p>Its speed is decreasing.</p> Signup and view all the answers

    What is the total mechanical energy of the ball at the starting point of projection, neglecting air resistance?

    <p>Sum of potential and kinetic energy</p> Signup and view all the answers

    Study Notes

    Kinematics

    • Edexcel Maths M1 covers kinematics, focusing on questions from past papers.
    • Several problems relate to a sprinter running a 200m race, with varying speeds and acceleration phases as shown by a speed-time graph.
    • There is a problem on a straight horizontal road where an athlete is accelerating, maintaining a constant speed, then decelerating, and another problem about a train's motion.
    • Other problems involve the vertical motion of a stone.
    • One problem involves a cyclist's journey analyzed through speed-time graphs.
    • A car's movement along a horizontal road is also analyzed, involving acceleration, constant speed, and deceleration phases.
    • There are problems regarding the motion of a projectile (like a ball) thrown vertically upwards
    • Problems involve different scenarios with various accelerations, speeds, times, and distances.
    • Questions often require calculating acceleration, speed, and distance covered, and connecting these to speed-time graphs.
    • Many calculations involve equations of motion.

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    Description

    This quiz covers key concepts in motion and acceleration, focusing on the dynamics of stone throwing and the analysis of speed-time graphs. It includes questions about initial and final speeds, the impact of gravity, and implications of time on maximum height. Test your understanding of these fundamental physics principles!

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