Paper 2 Electromagnetic Waves Required Practical Chapter 6 — Waves Complete the diagram, add uses for each type of wave. Draw a ripple tank. Describe how you can measure the wavelength, frequency and time period of the waves formed.

Colour the word with its meaning

The maximum displacement of a point on a wave away TRANSVERSE from its undisturbed posi- TV and Images of tion radio signals bones

The time taken to produce 1 COMPRESSION wave (= 1 / frequency) Add an A to a wave that ages skin prematurely A device for viewing waves Add a B to any waves that are ionising and cause mutations and cancer LONGITUDINAL on a screen (Cathode Ray ______) A wave with the vibrations are perpendicular to the RAREFACTION Waves Practice Calculation Give examples direction of energy transfer (e.g. ripples on water) What kind of Use the equation to calculate the Transverse Wave The distance from a point on one wave to the equiva- waves are period of the wave AMPLITUDE lent point on the adjacent these? Period = 1 / Frequency wave.

FREQUENCY The unit for frequency Label the 5 frequency = 0.1 kHz arrows Longitudinal Wave The speed at which the en- ergy is transferred (or the PERIOD wave moves) through a me- dium

Period = ____ (__) When particles are closer WAVELENGTH together in a sound wave

A wave with the vibrations parallel to the direction of HERTZ Waves Waves Electromagnetic Waves Electromagnetic Waves energy transfer (e.g. sound waves) Waves are either t______or The maximum displacement of a Electromagnetic waves are Electromagnetic spectrum are When particles are further l______. point on a wave away from its undis- t______waves that transfer e___. grouped in terms of their WAVE SPEED apart in a sound wave turbed position is the a______. w______and their f______. L______waves have areas of The w______of a wave is the dis- The number of waves pass- Electromagnetic waves form a con- R______have the l______fre- OSCILLOSCOPE tance from a point on one wave to ing a point each second c______and r______quency and the l______the equivalent point on the next tinuous s______with the vibrations p______to wavelength. the direction of e_____ transfer. wave. G____ w____ have the ______The number of waves passing a point All types of electromagnetic wave Complete the equations frequency and the ______In t______waves the each s_____ is the ______. travel at the same velocity through wavelength. wave speed (m/s) = v______are at r____ a_____ a v_____ 3______m/s. to the direction of e_____ transfer. Paper 2 Electromagnetic Waves Required Practical Chapter 6 — Waves Complete the diagram, add uses for each type of wave. Draw a ripple tank. Describe how you can measure the wavelength, frequency

A B B B and time period of the waves formed. Microwaves Infrared Visible UV Gamma Rays Set up tank start the dipper Colour the word with its meaning Take photo with a ruler in picture The maximum displacement Peak to peak in metres is wavelength of a point on a wave away TRANSVERSE from its undisturbed posi- TV and Cooking Food Heaters Fibre Optics Sun Tanning Images of Medical Imaging Take a video with a stop watch in it tion radio signals Satellite Coms Cooking Food Efficient Lamps bones Medical Treatment Time 10 seconds a count waves past a point The time taken to produce 1 IR Cameras COMPRESSION Divide by 10 (reduces error to do 10 seconds) wave (= 1 / frequency) Add an A to a wave that ages skin prematurely Waves per second past a point is frequency (Hz) A device for viewing waves Add a B to any waves that are ionising and cause mutations and cancer 1 / Frequency is Time Period (s) LONGITUDINAL on a screen (Cathode Ray ______) A wave with the vibrations are perpendicular to the RAREFACTION Waves Practice Calculation Give examples direction of energy transfer Wavelength (e.g. ripples on water) What kind of Use the equation to calculate the Transverse Wave The distance from a point on one wave to the equiva- waves are period of the wave AMPLITUDE Ripples on a pond lent point on the adjacent these? Period = 1 / Frequency wave. Amplitude Transverse Wave Electromagnetic Waves

FREQUENCY The unit for frequency Longitudinal Wave Compression frequency = 0.1 kHz The speed at which the en- Label the 5 Rarefaction 1/100Hz = 0.01 Soundwaves ergy is transferred (or the PERIOD arrows wave moves) through a me- dium Longitudinal Wave Period = 0.01s When particles are closer WAVELENGTH Wavelength together in a sound wave

A wave with the vibrations parallel to the direction of HERTZ Waves Waves Electromagnetic Waves Electromagnetic Waves energy transfer (e.g. sound waves) Waves are either transverse or lon- The maximum displacement of a Electromagnetic waves are rans-t Electromagnetic spectrum are When particles are further gitudinal. point on a wave away from its undis- verse waves that transfer energy. grouped in terms of their wave- WAVE SPEED apart in a sound wave turbed position is the amplitude. length and their frequency. Longitudinal waves have areas of The wavelength of a wave is the dis- The number of waves pass- Electromagnetic waves form a con- Radio waves have the lowest fre- OSCILLOSCOPE tance from a point on one wave to ing a point each second compression and rarefaction with quency and the longest wave- the equivalent point on the next tinuous spectrum. the vibrations arallelp to the direc- length. tion of nergye transfer. wave. Gamma waves have the highest The number of waves passing a point All types of electromagnetic wave Complete the equations frequency and the shortest wave- In transverse waves the vibrations each second is the frequency. travel at the same velocity through length. wave speed (m/s) = frequency (Hz) x are at right angles to the direction a vacuum 300,000,000 m/s. wavelength (m) of energy transfer.