0%

DP IB Physics: HL

Topic Questions

Home / IB / Physics: HL / DP / Topic Questions / 4. Waves / 4.2 Travelling Waves / Structured Questions


4.2 Travelling Waves

Question 1a

Marks: 2

The displacement-distance graph shows a travelling wave.

4-2-1a-question-stem-sl-sq-easy-phy

(a)
Label the diagram with the correct wave features
[2]
    Assess your score
      
    Key Concepts
    Properties of Waves

    Question 1b

    Marks: 5
    (b)
    Match the key word to its correct definition

    ye-K4JGI_4-2-sl-sq-1b-question-stem

    [5]

      Assess your score
        
      Key Concepts
      Properties of Waves

      Question 1c

      Marks: 1

      The diagram shows a displacement-time graph for an oscillating object.

      3b-figure-1

      (c)
      Determine the time period T for this oscillation
       
      [1]
        Assess your score
          
        Key Concepts
        Properties of Waves

        Question 1d

        Marks: 4

        The oscillation shown in part (c) has a wavelength λ of 5 m.

        (d)
        Calculate:
         
        (i)
        The frequency f of the oscillation
        [2]
        (ii)
        The wave speed c
        [2]
          Assess your score
            
          Key Concepts
          Properties of Waves

          Question 2a

          Marks: 6
          (a)
          Complete the following sentences by circling the correct words:
           
          In a transverse / longitudinal wave the oscillations are perpendicular to the direction energy transfer. 

          In a transverse / longitudinal wave the oscillations are parallel to the direction energy transfer. 

          Transverse / Longitudinal waves do not require a medium through which to propagate.

          A rarefaction is an area of high / low pressure in transverse / longitudinal waves.

          Radio waves and the vibrations on a guitar string are examples of transverse / longitudinal waves.

          Sound travelling through air is an example of a transverse / longitudinal wave.
          [6]
            Assess your score
              

            Question 2b

            Marks: 1

            The diagram shows a longitudinal wave.

            q5a-figure-1

            (b)
            Mark on the diagram one complete wavelength and label it λ
            [1]
              Assess your score
                

              Question 2c

              Marks: 6

              The diagram shows a longitudinal wave.

              file_000-4

              (c)
              Choose suitable words and phrases to complete the sentences.
              word-bank
               
              Label A indicates a ___________. This is an area of _______ pressure where the particles are ______________________.
              Label B indicates a ____________. This is an area of ________ pressure where the particles are __________________.
              The particles oscillate __________________________. The direction of motion and energy transfer is _______________________________.
              [6]
                Assess your score
                  

                Question 2d

                Marks: 4
                (d)
                Draw a line for each statement to identify whether it refers to a displacement-distance graph or a displacement-time graph.
                 
                vcaF~W~m_match-up
                [4]
                  Assess your score
                    

                  Question 3a

                  Marks: 1
                  (a)
                  State the speed of microwaves in a vacuum.
                  [1]
                    Assess your score
                      
                    Key Concepts
                    Electromagnetic Waves

                    Question 3b

                    Marks: 2
                    (b)
                    Calculate the frequency f of an infrared wave with a wavelength λ = 2.5 × 10−6 m s−1.
                    [2]
                      Assess your score
                        
                      Key Concepts
                      Electromagnetic Waves

                      Question 3c

                      Marks: 3
                      (c)
                      Order the electromagnetic waves by wavelength λ. Write a number from 1 to 7 in the column with 1 being the longest wavelength and 7 being the shortest wavelength.
                      IxmegZTt_em-waves
                      [3]
                        Assess your score
                          
                        Key Concepts
                        Electromagnetic Waves

                        Question 3d

                        Marks: 2
                        (d)
                        State the longest and shortest wavelengths λ for visible light.
                        [2]
                          Assess your score
                            
                          Key Concepts
                          Electromagnetic Waves

                          Question 4a

                          Marks: 1
                          (a)
                          Define a longitudinal wave.
                          [1]
                           
                           
                            Assess your score
                              

                            Question 4b

                            Marks: 1
                            (b)
                            Define a transverse wave.
                            [1]
                              Assess your score
                                

                              Question 4c

                              Marks: 3
                              (c)
                              Give three examples of transverse waves.
                              [3]
                                Assess your score
                                  
                                Key Concepts
                                Electromagnetic Waves

                                Question 4d

                                Marks: 1
                                (d)
                                State an electromagnetic wave with a frequency higher than visible light.
                                [1]
                                  Assess your score
                                    
                                  Key Concepts
                                  Electromagnetic Waves

                                  Question 5a

                                  Marks: 2
                                  (a)
                                  State the lowest and highest frequencies that are detectable to the human ear.
                                  [2]
                                    Assess your score
                                      
                                    Key Concepts
                                    Sound Waves

                                    Question 5b

                                    Marks: 6
                                    (b)
                                    Complete the following sentences by adding the correct words into the gaps:
                                     
                                    cj5CVT3J_word-bank-sound
                                    The frequency of a sound wave is related to its _______. Sounds with a _______ frequency have a high _______. Sounds with a ______ frequency have a low ________.
                                    The amplitude of a sound wave is related to its _______. Sounds with a ________ amplitude have a high _______. Sounds with a _______ amplitude  have a low ________.
                                    [6] 
                                      Assess your score
                                        
                                      Key Concepts
                                      Sound Waves

                                      Question 5c

                                      Marks: 4

                                      A fast timer was used to measure the time taken for a sound to travel between two microphones.

                                      4-2-5c-question-stem-sl-sq-easy-phy

                                      The microphones were placed 80 cm apart. The mean time interval was 2.5 ms.

                                      (c)
                                      Calculate the speed of the sound
                                      [4]
                                        Assess your score
                                          
                                        Key Concepts
                                        Sound Waves

                                        Question 5d

                                        Marks: 3

                                        A signal generator was set to produce a sound wave at 1 kHz. Two microphones detect the sound and show the traces on a double beam oscilloscope.

                                        4-2-5d-question-stem-sl-sq-easy-phy

                                        The second microphone was moved away from the first microphone until the oscilloscope traces aligned. The distance between the microphones at this point showed that the wavelength of the sound wave was 3.4 cm.

                                        (d)
                                        Calculate the speed of the sound
                                        [3]
                                          Assess your score
                                            
                                          Key Concepts
                                          Sound Waves