Flashcards
Gcse Electromagnetic Spectrum
Flashcards do conjunto (19)
- 1Fill in the missing words: X-rays form part of the ________________ _____________. They have _____ wavelengths and a _____________ frequency.Electromagnetic Spectrum
Short
High - 2Is an X-ray a transverse wave or a longitudinal wave?Transverse wave
- 3What are the advantages of X-Rays?X-Rays are transmitted by healthy tissue.
X-Rays are absorbed by metal and bone to produce shadow pictures. - 4Why can X-rays be the dangerous?Xray waves are harmful if exposed frequently or for a very long time because they penetrate into our body, in the process they cause danger to the cells in the body. This effect can lead to cancer.
- 5What is the speed all transverse waves travel through a vacuum......300 000 000 m/s.
- 6Is an ultrasound wave a transverse wave or a longitudinal wave?Longitudinal wave
- 7Give some examples of the use of Ultraviolet- Killing bacteria and viruses.
- Detect forgery.
- In sunbeds. - 8What is reflection?When light changes direction as it hits a surface.
- 9What is refraction?When light crosses an interface (a boundary between two transparent media of different densities) and it changes direction.
- 10What is the Electromagnetic SpectrumA range of radiations
- 11What are the two of the waves with the highest wavelength in the Em spectrum?Radio waves and microwaves.
- 12Fill in the missing words: The wave with the highest frequency is________ ______. The wave with the longest wavelength is _______ _____ .Gamma rays
Radio waves - 13What is frequency (f)?The number of waves that pass a certain point per second
- 14What is the frequency of oscillation?The number of times the mass of a pendulum swings back and forth every second.
- 15Fill in the missing words: Any object moving with a constant speed in a _________ path is ______________ _____________ towards the centre of the circle.Circular
Continuously accelerating - 16Which is the most dangerous ray?Gamma rays
- 17Fill in gaps: Travel the same way the wave travel is called ____________ _______. The second one is when the wave oscillates parallel to the direction of the wave is called _____ __ ________.Transverse wave
Longitudinal waves - 18Fill in the missing gaps: Electromagnetic spectrum consists of ___________ __________.Seven waves
- 19How are transverse waves formed?When a transverse wave travels through a substance,
the particles of the substance are moved at right angles
to the direction in which the wave is traveling.
The particles either move up and down or from side to side
as the wave goes past (like waves on the surface of the sea).
After the wave has gone, the particles are back where they started.
Informações
- Descrição
- Get ready for the final chapter in the epic GCSE AQA Physics trilogy. The Sun has hit its White Dwarf stage, Lord Nova has won. Now Dr.Physics must bring his band back together for one final battle to save Physika! Friendship dies and true love lies, night will fall and the dark will rise, as a good physicist goes to war...
- Criado por
- Sabia Bashir
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- Criado por James Jolliffe · 18 mar 2015
- Copiado por Sabia Bashir · 8 dez 2016
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