2. Forces, Space and Radioactivity
📖 Lessons in this unit — choose a lesson
Lesson 1Unit 2 overview: Forces, Space and Radioactivity1 pointsLesson 22.1.1 Describing Motion5 pointsLesson 32.1.2 Distance-Time Graphs6 pointsLesson 42.1.3 Velocity-Time Graphs6 pointsLesson 52.1.4 Thinking, Braking and Stopping Distances4 pointsLesson 62.1.5 Traffic Control Measures4 pointsLesson 72.2.1 Inertia4 pointsLesson 82.2.2 Newton’s First Law6 pointsLesson 92.2.3 Newton’s Second Law7 pointsLesson 102.2.4 Weight and Mass9 pointsLesson 112.2.5 Investigating Terminal Speed4 pointsLesson 122.2.6 Newton’s Third Law7 pointsLesson 132.3.1 Energy Transfer and Work4 pointsLesson 142.3.2 KE, GPE and Elastic Energy4 pointsLesson 152.3.3 Calculating KE and Changes in GPE4 pointsLesson 162.3.4 Force and Extension7 pointsLesson 172.3.5 Investigating the Force-Extension Graph for a Spring5 pointsLesson 182.3.6 Calculating Work Done in Stretching4 pointsLesson 192.3.7 Improving Energy Efficiency4 pointsLesson 202.3.8 Safety Features of Cars4 pointsLesson 212.4.1 The Solar System8 pointsLesson 222.4.2 The Universe8 pointsLesson 232.4.3 Life Cycle of Stars10 pointsLesson 242.4.4 Stability of Stars5 pointsLesson 252.4.5 Origin of the Solar System4 pointsLesson 262.4.6 Hertzsprung-Russell Diagram7 pointsLesson 272.5.1 Atomic Nuclei5 pointsLesson 282.5.2 Radioactive Emissions4 pointsLesson 292.5.3 Types of Radiation8 pointsLesson 302.5.4 Nuclear Equations4 pointsLesson 312.5.5 Background Radiation7 pointsLesson 322.5.6 Sources of Background Radiation4 pointsLesson 332.6.1 Modelling Radioactive Decay8 pointsLesson 342.6.2 Half-Life7 pointsLesson 352.6.3 Calculating Half-Life5 pointsLesson 362.6.4 Determining Half-Life5 pointsLesson 372.6.5 Uses of Radioactive Material4 points