1. A student is asked: “What is meant by background radiation?” She writes: “It is the radiation produced by the rocks in the ground.” This answer is A B C D correct…

Teaching Problem Solving in Large Introductory Classes: The View from Physics Ken Heller School of Physics and Astronomy University of Minnesota 20 year continuing project…

Slide 1Forces – Chapter 4 Slide 2 What are forces? A force is a push or pull exerted by one object on another object Forces are vectors; they have magnitude and direction…

Slide 12.1c Mechanics Motion & Force Breithaupt pages 132 to 145 Slide 2 AQA AS Specification LessonsTopics 1 to 3Newtons laws of motion Knowledge and application of…

Slide 11 Lecture 12: Radioactivity Questions –How and why do nuclei decay? –How do we use nuclear decay to tell time? –What is the evidence for presence of now extinct…

Slide 1 Slide 2 1. Name the particles in the atom and give the charges associated with each. Slide 3 2. Which particles contribute to the mass of the atom? Slide 4 3. What…

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Slide 1Earths history is separated into four divisions according to the fossil record: Eons Eras Periods Epochs Slide 2 The geological time scale reads oldest on the bottom…

Slide 1Chapter 11 Radioactiv e Elements Slide 2 Accidental Discovery of Nuclear Radiation In 1896, French scientist Henri Becquerel accidentally left some uranium samples…

Slide 1Unit C – The Changing Earth Pages 292 - 401 Slide 2 The history of our planet is one of change. There is evidence not only that Earths surface is changing but that…