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- Q 1/10Score 0What is the frequency for Ultrasound?29Less than 20 Hz20 - 20 000 HzBelow 20 000 HzAbove 20 000 Hz
10 questions
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- Q1What is the frequency for Ultrasound?Less than 20 Hz20 - 20 000 HzBelow 20 000 HzAbove 20 000 Hz120s
- Q2Which of these is NOT a use of Ultrasound?Looking at broken bonesBreak down kidney stonesSONARCleaning delicate machines120s
- Q3Why do we use Ultrasound waves used to look at a foetus?It can provide a moving picture and does not harm the foetus.So that the foetus can hear it.It can show any differences in bone structure.To hear the foetus' heartbeat.120s
- Q4What is the best protections for people working in a noisy environment?Cotten wool ear plugEar muffsPolystyrene ear plugNothing120s
- Q5What do we call the continuous spectrum of radiation that is emitted from the Sun?Electromagnetic spectrumMagnetic spectrumLight spectrumRadiation spectrum120s
- Q6Which parts of the electromagnetic spectrum can our eyes detect?Light and InfraredAll of themLightLight, Infrared and Ultraviolet120s
- Q7What key term do we call this- Waves with a higher frequency can knock electrons out of atoms in living cells.IonisationHeatingUltrasoundRadiation120s
- Q8Waves with a low frequency and energy have a heating effect. Which waves are these?Infrared, Visible and UltravioletGamma and X-raysRadio, Microwaves, Infrared, VisibleMicrowaves, Infrared120s
- Q9Which of the waves in the electromagnetic spectrum are ionising?Visible lightInfrared, Visible light and ultravioletUltraviolet, X-rays and Gamma raysRadio waves, microwaves, infrared and visible light120s
- Q10Which of the electromagnetic spectrum could be used fro mobile phone signals?X-raysInfraredMicrowavesRadio waves120s
