, Answer ALL questions. Write your answers in the spaces provided.
Some questions must be answered with a cross in a box . If you change your mind about an
answer, put a line through the box and then mark your new answer with a cross .
1 This question is about the electromagnetic spectrum.
(a) X-rays and microwaves are both parts of the electromagnetic spectrum.
Use words from the box to complete the sentences.
(3)
amplitude frequency longitudinal speed transverse wavelength
X-rays and microwaves are both .............................................................. waves.
In a vacuum, x-rays and microwaves always have the same ............................................................ . . .
X-rays always have a higher . . . . .......................................................... than microwaves.
2
, (b) Figure 1 shows the full electromagnetic spectrum.
Figure 2 gives information about four of the types of electromagnetic radiation
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shown in Figure 1.
gamma
radio waves microwaves infrared visible light ultraviolet x-rays
rays
Figure 1
State the name of each type of radiation next to its information.
(4)
Information Type of electromagnetic radiation
emitted by bright objects and can be
detected by the human eye .......................................................................................... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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emitted by radioactive nuclei and can
be used to treat cancer .......................................................................................... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
produced in an aerial and can be used
for communication .......................................................................................... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
can cause skin cancer in humans and can be
used to detect forged banknotes .......................................................................................... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2
(Total for Question 1 = 7 marks)
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3
,
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