Everything Science Grade 11

CHAPTER 13. GEOMETRICAL OPTICS 13.4 Primary Lens Eyepiece Figure 13.19: Layout oflenses in a refracting telescope Reflecting Tel ...

13.5 CHAPTER 13. GEOMETRICAL OPTICS SALT was completed in2005 and is a truly international initiative, because the money to buil ...

CHAPTER 13. GEOMETRICAL OPTICS 13.5 Example 5: The Compound Microscope QUESTION A compound microscope consists of two convexlens ...

13.5 CHAPTER 13. GEOMETRICAL OPTICS Step 3 : Find the image for theeyepiece. The image we just foundbecomes the object forthe se ...

CHAPTER 13. GEOMETRICAL OPTICS 13.5 Chapter 13 End of Chapter Exercises Select the correct answer from the options given: (a) A ...

13.5 CHAPTER 13. GEOMETRICAL OPTICS An object is at right angles to the principal axis of a convex lens. Theobject is 2 cm high ...

Longitudinal Waves 14 14.1 Introduction ESBGD In Grade 10 we studiedpulses and waves. We looked at transverse waves more closely ...

14.3 CHAPTER 14. LONGITUDINAL WAVES Take a spring and hang it from the ceiling. Pull the free end of the spring and release it. ...

CHAPTER 14. LONGITUDINAL WAVES 14.3 DEFINITION: Rarefaction A rarefaction is a region in a longitudinal wave where the particles ...

14.3 CHAPTER 14. LONGITUDINAL WAVES λ λ λ λ λ λ Figure 14.3: Wavelengthon a longitudinal wave Period and Frequency ESBGI DEFINIT ...

CHAPTER 14. LONGITUDINAL WAVES 14.3 Example 1: Speed of longitudinalwaves QUESTION The musical note A is asound wave. The note h ...

14.4 CHAPTER 14. LONGITUDINAL WAVES Step 1 : Determine what is required We need to determine how the period and wavelength of a ...

CHAPTER 14. LONGITUDINAL WAVES 14.5 t = 0 s �� �� �� �� �� � 0 1 2 3 4 5 6 7 8 9 10 t = 1 s � �� �� �� �� �� 0 t = 2 s � �� �� � ...

14.5 CHAPTER 14. LONGITUDINAL WAVES � � � � � � � � � � � � � t x 1 2 3 4 5 6 7 8 9 10 11 12 Figure 14.5: Graph of particle disp ...

CHAPTER 14. LONGITUDINAL WAVES 14.6 14.6 Seismic Waves ESBGM Seismic waves are waves from vibrations in theEarth (core, mantle, ...

14.6 CHAPTER 14. LONGITUDINAL WAVES (d) ultrasound Which of the following media can sound nottravel through? (a) solid (b) liqu ...

Sound 15 15.1 Introduction ESBGN Now that we have studied the basics of longitudinal waves, we are readyto study sound waves in ...

15.2 CHAPTER 15. SOUND Pitch ESBGP The frequency of a sound wave is what your earunderstands as pitch. Ahigher frequency soundha ...

CHAPTER 15. SOUND 15.3 proportions. The harmonics are determined by the standing waves that are produced in the instrument. Chap ...

15.4 CHAPTER 15. SOUND 15.4 Physics of the Ear and Hearing ESBGT Figure 15.2: Diagram ofthe human ear. The human ear is divided ...