Pearson Edexcel International GCSE (9–1) · PHYSICS · Section
What are waves?
16 practice questions
Practice questions
11–16 of 16
Question 11
2 marks · Normal
Answer and see the solution →Sound from a loudspeaker is heard on the other side of a room. Explain, in terms of energy and matter, what happens as the sound travels from the loudspeaker to the listener.
Question 12
2 marks · Normal
Answer and see the solution →A diagram below shows water waves moving from the centre outward after a small object is dropped into a pond.
Circular wavefronts after an object drops in; the object remains at the centre. Describe what the diagram shows about how energy is transferred but not matter.
Question 13
3 marks · Normal
Answer and see the solution →A mobile phone sends a text message using electromagnetic waves.
(a)[1 mark]What do electromagnetic waves transfer from the phone to a nearby mast?
(b)[1 mark]Do the air molecules between the phone and mast travel the distance, yes or no?
(c)[1 mark]Explain your answer to part (b).
Question 14
3 marks · Normal
Answer and see the solution →Explain how it is possible to listen to a concert live in a stadium but not be physically touched by the sound waves, even though energy is transferred from the speakers to your ears.
Question 15
2 marks · Normal
Answer and see the solution →State two things that waves can transfer.
Question 16
3 marks · Normal
Answer and see the solution →In a demonstration, a row of dominoes are stood on end in a line. The first domino is knocked over and the fall continues in a wave down the line. A student says this is just like a water wave. Discuss whether this is a correct analogy for how waves transfer energy.