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Revision Questions

Electromagnetic Waves and Plate Tectonics

(See also Sound, Light and Water)

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Electromagnetic Waves
Uses - Dangers - Transmission - Analogue - Digital
78 Are Electromagnetic Waves Longitudinal or Transverse? Answer
79 What travels Faster than Electromagnetic Waves? Answer
80 Can Electromagnetic Waves travel through a Vacuum? Answer
81 Give the Electromagnetic Spectrum from Radio Waves to Gamma Rays. Answer
82 As the Wavelength Decreases does the Frequency Increase or Decrease? Answer
83 Give one Use of Radio Waves. Answer
84 What are Ground Waves, Sky Waves and Space Waves? Answer
85 What do Medium Wavelength Radio Waves Reflect from? Answer
86 What type of Wave would be used to Transmit Information to Satellites? Answer
87 How do Microwave Cookers work? Answer
88 Give one Danger of Microwaves. Answer
89 What is the Difference between Infra-red Waves and Infra-red Radiation? Answer
90 Give one Use of Infra-red Waves. Answer
91 Give one Danger of Infra-red Waves. Answer
92 What is the Difference between  Ultraviolet Waves and Ultraviolet Light? Answer
93 What does Fluorescent mean? Answer
94 Give one Use of Ultraviolet Light. Answer
95 Give one Danger of Ultraviolet Light. Answer
96 Give one Use of X-rays. Answer
97 Give one Danger of X-rays. Answer
98 How can People Protect themselves from the Dangers of X-rays? Answer
99 Where do Gamma Rays come from? Answer
100 Give one Danger of Gamma Rays. Answer
101 What does Radiotherapy do? Answer
102 What is Transmission? Answer
103 Give two types of Electromagnetic Waves which are used for Transmission. Answer
104 Describe an Analogue Signal. Answer
105 What is a Carrier Wave? Answer
106 Draw a Picture of a Digital Signal. Answer
107 What is Decoding? Answer
108 Give one Advantage that a Digital Signal has over an Analogue Signal. Answer
109 What is the Quality of a Signal? Answer
110 What is Noise? Answer
111 What does an Analogue Signal do with Noise? Answer
112 What does a Digital Signal do with Noise? Answer

Earthquakes - Plate Tectonics
113 What produces Seismic Waves? Answer
114 What are Earthquakes caused by? Answer
115 What is the Outer Crust of the Earth made from? Answer
116 What is the Mantle of the Earth made from? Answer
117 Does the Mantle behave more like a Solid or a Liquid? Answer
118 What is the Core of the Earth made from? Answer
119 Is the Outer Core Liquid? Answer
120 Is the Inner Core Liquid? Answer
121 What causes P Waves and S Waves? Answer
122 Are P Waves Longitudinal or Transverse Waves? Answer
123 Are S Waves Longitudinal or Transverse Waves? Answer
124 Do P Waves travel Faster than S Waves? Answer
125 Can S Waves travel through the Mantle? Answer
126 Can S Waves travel through the Outer Core? Answer
127 Why do S Waves Curve? Answer
128 Can P Waves travel through the Mantle? Answer
129 Can P Waves travel through the Outer Core? Answer
130 What are Plates? Answer
131 What makes the Plates move? Answer
132 What happens to Rocks during Tectonic Activity? Answer
133 Give one Piece of Evidence that the Plates move. Answer
134 Where do Plate Boundaries occur? Answer
135 What happens when Plates Slide Past Each Other? Answer
136 What are Plates Under the Ocean called? Answer
137 What is Sea Floor Spreading? Answer
138 What causes a Tsunami? Answer
139 How can Rocks become Magnetic? Answer
140 How can Magnetic Rocks provide Evidence for Sea Floor Spreading? Answer
141 What is Subduction? Answer
142 How do Fold Mountains occur? Answer


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