Gr 10 Physical Sciences Ch 5: Pulses: amplitude and length
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Questions and Answers

What is a pulse?

  • A group of particles moving in the same direction
  • A static disturbance that remains in one place
  • A repeated disturbance that moves through a medium
  • A single disturbance that moves through a medium (correct)

What is the direction of displacement in a transverse pulse?

  • Parallel to the direction of motion of the pulse
  • In a circular motion around the direction of motion of the pulse
  • Perpendicular to the direction of motion of the pulse (correct)
  • At an angle to the direction of motion of the pulse

What is measured in meters (m) in a pulse?

  • Frequency
  • Pulse length
  • Amplitude (correct)
  • Pulse speed

What is the purpose of the investigation: Observation of Pulses?

<p>To understand the properties of a pulse (C)</p> Signup and view all the answers

What is flicking the rope an example of in the investigation?

<p>Creating a pulse (B)</p> Signup and view all the answers

What is the pulse length a measurement of?

<p>How long the pulse is from one end to the other (B)</p> Signup and view all the answers

What occurs when the rope is flicked up and down in the investigation?

<p>The pulse moves horizontally along the rope while the rope is displaced vertically (B)</p> Signup and view all the answers

What are the two crucial properties of pulses?

<p>Amplitude and pulse length (D)</p> Signup and view all the answers

What is the unit of amplitude?

<p>Metre (m) (B)</p> Signup and view all the answers

What remains constant over time for a pulse?

<p>Amplitude and pulse length (A)</p> Signup and view all the answers

What is pulse speed?

<p>The distance a pulse travels per unit time (B)</p> Signup and view all the answers

What is the formula to calculate pulse speed?

<p>v = D/t (D)</p> Signup and view all the answers

What is the pulse length?

<p>The horizontal length of the disturbance (C)</p> Signup and view all the answers

What is the position of rest?

<p>The state where the medium would be if it were undisturbed (A)</p> Signup and view all the answers

What is the main difference between a pulse and a wave?

<p>A wave is a repeated disturbance, whereas a pulse is a single disturbance. (D)</p> Signup and view all the answers

What is the motion of the particles in a transverse pulse?

<p>Perpendicular to the direction of motion of the pulse (C)</p> Signup and view all the answers

What is the amplitude of a pulse a measurement of?

<p>The vertical distance from the rest position to the peak (B)</p> Signup and view all the answers

What is the purpose of measuring the pulse length and amplitude?

<p>To visualize the pulse and its properties (A)</p> Signup and view all the answers

What happens to the amplitude of a pulse as it moves through a medium?

<p>It remains constant (A)</p> Signup and view all the answers

What is the purpose of measuring the pulse length?

<p>To understand the properties of the pulse (D)</p> Signup and view all the answers

Which of the following is a fundamental property of a pulse?

<p>The amplitude and pulse length (B)</p> Signup and view all the answers

What is the unit of pulse speed?

<p>Metre per second (m/s) (D)</p> Signup and view all the answers

What is the disturbance created by flicking the rope an example of?

<p>A pulse (B)</p> Signup and view all the answers

What is the relationship between the amplitude and the displacement of the medium?

<p>The amplitude is the maximum displacement of the medium. (C)</p> Signup and view all the answers

What is the relationship between the distance traveled by the pulse and the time taken?

<p>The distance traveled is directly proportional to the time taken (A)</p> Signup and view all the answers

What can be concluded about the amplitude and pulse length of a pulse?

<p>They are fundamental properties that remain constant over time (D)</p> Signup and view all the answers

What is the characteristic of a pulse that allows it to move through a medium?

<p>Its ability to disturb the medium (D)</p> Signup and view all the answers

What is the importance of understanding the properties of pulses?

<p>To understand the behavior of the pulse in different mediums (B)</p> Signup and view all the answers

What is the significance of the position of rest in a pulse?

<p>It is the state where the medium would be if it were undisturbed. (A)</p> Signup and view all the answers

What can be said about the amplitude and pulse length of a pulse over time?

<p>They remain constant over time. (D)</p> Signup and view all the answers

What is the purpose of measuring the pulse length and amplitude in an investigation?

<p>To visualize the properties of a pulse. (D)</p> Signup and view all the answers

What is the relationship between the distance traveled by the pulse and the time taken?

<p>The distance traveled is directly proportional to the time taken. (A)</p> Signup and view all the answers

What is the quantity that describes the distance a pulse travels per unit time?

<p>Pulse speed (B)</p> Signup and view all the answers

In a pulse, what is the horizontal length of the disturbance?

<p>Pulse length (B)</p> Signup and view all the answers

What is the quantity that remains constant over time for a pulse?

<p>Amplitude and pulse length (A)</p> Signup and view all the answers

What is the unit of the quantity that describes the distance a pulse travels per unit time?

<p>Meter per second (m/s) (D)</p> Signup and view all the answers

What is the purpose of measuring the amplitude and pulse length of a pulse?

<p>To understand the properties of a pulse (D)</p> Signup and view all the answers

What is the formula used to calculate the pulse speed?

<p>v = D/t (D)</p> Signup and view all the answers

What is the state of the medium when it is not disturbed?

<p>Position of rest (A)</p> Signup and view all the answers

What is the primary difference between a pulse and a wave?

<p>A pulse is a single disturbance, while a wave is a series of disturbances. (A)</p> Signup and view all the answers

What is the significance of the amplitude of a pulse in understanding its properties?

<p>It determines the maximum disturbance of the medium. (B)</p> Signup and view all the answers

What is the purpose of measuring the pulse length in an investigation?

<p>To determine the length of the disturbance. (D)</p> Signup and view all the answers

What can be concluded about the motion of particles in a transverse pulse?

<p>The particles move perpendicular to the direction of the pulse. (A)</p> Signup and view all the answers

What is the relationship between the amplitude and the displacement of the medium in a pulse?

<p>The amplitude is proportional to the displacement of the medium. (C)</p> Signup and view all the answers

What can be said about the pulse length and amplitude of a pulse over time?

<p>The pulse length and amplitude remain constant over time. (D)</p> Signup and view all the answers

What is the characteristic of a pulse that allows it to move through a medium?

<p>Its ability to disturb the medium. (B)</p> Signup and view all the answers

What is the significance of understanding the properties of pulses?

<p>It is essential in understanding the behavior of physical systems. (D)</p> Signup and view all the answers

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