Gemma Young and Mark Levesley Solutions for Exercise 12: End of chapter review
Gemma Young Science Solutions for Exercise - Gemma Young and Mark Levesley Solutions for Exercise 12: End of chapter review
Attempt the practice questions from Exercise 12: End of chapter review with hints and solutions to strengthen your understanding. Cambridge Lower Secondary Science Stage 8 : Student's book solutions are prepared by Experienced Embibe Experts.
Questions from Gemma Young and Mark Levesley Solutions for Exercise 12: End of chapter review with Hints & Solutions
Observe the sound wave in the figure given below. Draw a sound wave that is louder but has the same pitch.
Observe the sound wave in the figure given below. Draw a sound wave that has the same volume but a lower pitch than the given wave.
Observe the sound wave in the figure given below. Draw a sound wave that has a higher pitch and a lower volume than the given wave.
(a) How could you use a loudspeaker, a microphone, an oscilloscope and a signal generator to compare how well sound travel through different materials? Design an experiment to compare wood, glass and steel.
(b) State the precautions you would take to make sure your results were accurate.
(c) A singer wants to make one room in his house soundproof. This means that very little sound gets into or out of the room. How would the singer use the results of your experiment to decide which material to use?
A person makes a sound which starts at a very low pitch. The pitch then becomes higher and higher. At the same time, the sound gets quieter and quieter. Sketch a diagram to show what the sound wave would look like.
How would you use the equipment shown in the figure, to show that sound cannot travel through a vacuum?
How does the equipment shown in the figure prove that sound cannot travel through a vacuum?
Explain why sound cannot travel through a vacuum.
