GCSE Additional science for the 21st Century: Topic P6 The Wave Model of Radiation

What type of wave is this?
1. Transverse
2. Longitudinal
Which label is the wavelength of this wave?
1. -
2. -
3. -
4. -
Which label is the wavelength of this wave?
1. -
2. -
3. -
Which label is the amplitude of this wave?
1. -
2. -
3. -
4. -
This diagram shows water waves...
1. refracting
2. reflecting
3. diffracting
4. interfering
This photo shows water waves in a ripple tank...
1. refracting
2. reflecting
3. diffracting
4. interfering
This photo shows water waves...
1. refracting
2. reflecting
3. diffracting
4. interfering
This diagram show water waves...
1. refracting
2. dispersing
3. diffracting
4. cancelling
The photo shows a beam of light being...
1. dispersed
2. difracted
3. refracted
How do we know that light is a wave, and not a stream of particles?
1. Because it can interfere and be reflected
2. Because it can be refracted and reflected
3. Because it can be diffracted and can interfere
This picture shows a beam of light being…
1. dispersed
2. diffracted
3. impacted
4. distracted
The Electromagnetic Spectrum.

Letter G would be...
1. gamma rays
2. radio waves
3. infra-red
4. light
The Electromagnetic Spectrum.

Letter B would be...
1. radio waves
2. microwaves
3. ultra-violet
4. x-rays
The Electromagnetic Spectrum.

Letters C, D and E would be...
1. ultraviolet, x-rays, microwaves
2. radio waves, infra-red, light
3. ultraviolet, radio waves, infra-red
4. infra-red, light, ultra-violet
Which electromagnetic wave gives you a suntan?
1. infra-red
2. microwaves
3. gamma rays
4. ultra-violet
Which electromagnetic wave do we perceive as radiated heat?
1. infra-red
2. microwaves
3. gamma rays
4. ultra-violet
Which electromagnetic wave is used by mobile phones?
1. infra-red
2. microwaves
3. gamma rays
4. ultra-violet
"AM" stands for "Amplitude Modulated"
1. True
2. False
“FM” stands for “Frequency Modulated”
1. True
2. False
Which is the amplitude-modulated wave?
1. -
2. -
3. -
4. -
What is a disadvantage of sending a signal using a digital system?
1. You need more complicated equipment than you do for analogue
2. The system can reject any “noise” that creeps into the signal
3. The signal cannot be sent long distances
What is a disadvantage of sending a signal using an analogue system?
1. You don’t need to convert the signal into digital form for transmission
2. The signal can be boosted if it has travelled a long distance
3. “Noise” creeps in to the signal