Question 1
1 markThe frequency of a sound wave is measured in which of the following units?
Key Stage 3 (KS3) · Science
Waves (Sound and Light): Practice Questions
5 multiple-choice questions marked as you go, and 1 written questions with worked solutions. All on Waves (Sound and Light).
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Question 2
1 markA student observes a wave on a spring. The distance between a compression and the next adjacent rarefaction is measured to be \( 15 \text{ cm} \). What is the wavelength of this longitudinal wave?
Question 3
1 markA ray of light strikes a plane mirror at an angle of incidence of \( 35^{\circ} \) to the normal. What is the total angle between the incident ray and the reflected ray?
Question 4
1 markWhen a white light passes through a triangular prism, it splits into a spectrum of seven colors. What is the name of this physical phenomenon?
Question 5
1 markA convex lens is often used as a magnifying glass. When an object is placed very close to the lens (within its focal length), what are the characteristics of the image formed?
Question 6
3 marksIn Waves (Sound and Light), describe the relationship between the amplitude of a sound wave and the energy it carries.
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