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1.3.3_Practice_Questions_Answers.pptx
Electromagnetic Oscillations
Section 1
2-May-20
1
QUESTION 1
2-May-20
2
Answer 1
2-May-20
3
QUESTION 2
2-May-20
4
Answer 2
2-May-20
5
QUESTION 3
2-May-20
6
QUESTION 4
2-May-20
7
Electromagnetic Waves
Section 2
2-May-20
8
QUESTION 5
Copy and complete the table below showing the type of electromagnetic radiation produced by each device a to d.
device | Infra-red | microwave | Radio waves |
a. Electric toaster | |||
b. Microwave oven | |||
c. TV broadcast transmitter | |||
d. Remote handset | |||
2-May-20
9
QUESTION 6
Use words from the list to copy and complete the sentences.
[ Infrared-red, gamma rays, radio waves, ultra-violet, light, x-rays, white light.]
……. from the sun is absorbed by the ozone layer.
……. Includes all colours of the spectrum.
In a TV set, the aerial detects …… and the screen emits …..
In a microwave oven, food absorbs….. , heats up emits ……
2-May-20
10
QUESTION 7
2-May-20
11
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