Edexcel IGCSE Physics - Movement & Position
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Questions and Answers

What does the area under a velocity-time graph represent?

  • Total time taken
  • Total distance travelled (correct)
  • Force acting on the object
  • Acceleration of the object

    • What must you do first when calculating the total distance from a velocity-time graph?

  • Measure the height of the graph
  • Determine the area under the graph (correct)
  • Count the number of slopes in the graph
  • Identify the total duration of the journey

    • Which shapes are used to calculate the total distance travelled in the provided example?

  • Rectangles and trapezoids
  • Circles and squares
  • Lines and curves
  • Triangles and rectangles (correct)

    • How many enclosed areas are identified in the example of the car journey?

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

    When an object moves with constant acceleration, the velocity-time graph consists of what kind of lines?

    <p>Straight lines</p> Signup and view all the answers

    What is the definition of speed?

    <p>The distance traveled every second</p> Signup and view all the answers

    Which statement best describes average speed?

    <p>Average speed takes into account the total distance and total time.</p> Signup and view all the answers

    What is the average speed of a hiker if they travel 10 m in 5 seconds?

    <p>2 m/s</p> Signup and view all the answers

    How is the average speed formula rearranged from the formula triangle?

    <p>Average speed = distance / time</p> Signup and view all the answers

    If an object travels a distance of 30 m in 10 seconds, what is its average speed?

    <p>3 m/s</p> Signup and view all the answers

    What does it mean if two quantities in the average speed formula triangle are on the same line?

    <p>They are multiplied.</p> Signup and view all the answers

    Why might knowing an object's average speed be more useful than its instantaneous speed?

    <p>Average speed provides a general overview of the journey over time.</p> Signup and view all the answers

    What is a common misconception about average speed?

    <p>It must be constant throughout the entire motion.</p> Signup and view all the answers

    What does a straight line on a distance-time graph indicate?

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

    How can you determine the speed of an object from its distance-time graph?

    <p>By finding the slope of the line.</p> Signup and view all the answers

    What does a flat, horizontal line represent on a distance-time graph?

    <p>The object is stationary.</p> Signup and view all the answers

    What does a very steep slope on a distance-time graph indicate about the object's speed?

    <p>The object is moving with a large speed.</p> Signup and view all the answers

    Which of the following statements regarding distance-time graphs is false?

    <p>A shallow slope indicates no movement.</p> Signup and view all the answers

    Which aspect of motion can be directly inferred from the shape of a distance-time graph?

    <p>The object's distance from the starting point.</p> Signup and view all the answers

    How does plotting graphs benefit students in physics?

    <p>It improves their ability to visualize motion.</p> Signup and view all the answers

    When interpreting a distance-time graph, what does the steepness of the slope indicate?

    <p>The speed of the object.</p> Signup and view all the answers

    How is average speed calculated using the formula triangle?

    <p>Distance divided by time</p> Signup and view all the answers

    What is the first step in solving for distance traveled if average speed and time are known?

    <p>List the known quantities</p> Signup and view all the answers

    If a plane flies for 2 hours at an average speed of 250 m/s, what is the distance traveled in meters?

    <p>1,800,000 m</p> Signup and view all the answers

    Why must time be converted when calculating distance using average speed?

    <p>To match the units used for speed</p> Signup and view all the answers

    What is the standard unit for time when calculating distance using the speed formula?

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

    What is one disadvantage of relying on formula triangles in physics?

    <p>They do not work for all equations</p> Signup and view all the answers

    After listing the known quantities, what is the next logical step to calculate distance in this example?

    <p>Rearrange the formula</p> Signup and view all the answers

    What is the correct formula to find distance based on average speed and time?

    <p>Distance = speed × time</p> Signup and view all the answers

    What is the independent variable in the investigation of motion?

    <p>Distance moved</p> Signup and view all the answers

    Which equipment is used to measure the time taken for the object to fall?

    <p>Stop watch</p> Signup and view all the answers

    Which of the following represents a control variable in the experiment?

    <p>Material of the object used</p> Signup and view all the answers

    What is the method employed to calculate the average speed of an object?

    <p>Distance divided by time taken</p> Signup and view all the answers

    What is the purpose of a tape measure or metre rule in the experiment?

    <p>To measure the distance moved by the falling object</p> Signup and view all the answers

    If you wanted to investigate the motion of a faster object, which would be the most suitable choice?

    <p>A marble</p> Signup and view all the answers

    What is the resolution of the stop clock used in this investigation?

    <p>0.01 second</p> Signup and view all the answers

    What is one disadvantage of measuring speed directly?

    <p>It can be prone to human error</p> Signup and view all the answers

    What does the slope of a velocity-time graph indicate?

    <p>The magnitude of acceleration</p> Signup and view all the answers

    In which sections of the velocity-time graph is the cyclist accelerating?

    <p>Sections B and D</p> Signup and view all the answers

    Which section of the graph has the steepest slope?

    <p>Section D</p> Signup and view all the answers

    How is the acceleration calculated using a velocity-time graph?

    <p>By calculating the gradient between two points</p> Signup and view all the answers

    What is the formula used to calculate acceleration from a gradient?

    <p>$a = \Delta y / \Delta x$</p> Signup and view all the answers

    What was the calculated acceleration of the cyclist between 5 and 10 seconds?

    <p>1 m/s²</p> Signup and view all the answers

    Which of the following statements about constant velocity is correct?

    <p>Sections where the graph is flat represent constant velocity.</p> Signup and view all the answers

    Which area of the graph should be used for best accuracy when calculating the gradient?

    <p>A large gradient triangle across the entire slope</p> Signup and view all the answers

    Study Notes

    Edexcel IGCSE Physics - Movement & Position

    • Distance-Time graphs: Show how distance changes over time for an object moving in a straight line from a starting position.
    • A straight line on a distance-time graph indicates constant speed.
    • The steeper the line, the greater the speed.
    • A horizontal line indicates the object is stationary.
    • A curved line indicates changing speed.
    • Speed: The rate at which an object covers distance.
    • Core Practical: Investigating Motion: An experiment to measure the speed of objects by calculating the distance moved and time taken.
    • This involves measuring distance and time.
    • A paper cone or tennis ball can be used for the object.
    • A stopwatch is used to measure time taken.
    • A tape measure or metre rule is used to measure distance moved.
    • Acceleration: The rate of change of velocity.
    • Acceleration = Change in velocity / Time taken
    • The equation is represented by the gradient of the velocity-time graph.
    • Positive acceleration indicates increasing speed.
    • Negative acceleration indicates decreasing speed (or deceleration).
    • Velocity-Time Graphs: Show how the velocity of an object changes over time.
    • A straight line on a velocity-time graph means constant acceleration.
    • The steeper the line, the greater the acceleration.
    • A horizontal line means constant velocity.
    • The area under a velocity-time graph represents displacement (or distance travelled).
    • Calculating Uniform Acceleration: Calculations to find different parameters related to uniform acceleration without time being known.
    • The equation (final speed)² = (initial speed)² + (2 x acceleration x distance moved) is used. (v² = u² + 2as)

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    Edexcel IGCSE Physics Movement & Position PDF

    Description

    Explore the concepts of movement and position in this Edexcel IGCSE Physics quiz. Understand distance-time graphs, speed, and acceleration, as well as practical experiments to measure motion. Test your knowledge on how objects move in a straight line and analyze various graphical representations.

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