1. 1 of 5 Boardworks Ltd 20071 of 5 Boardworks Ltd 2007 What is force? Friction Water resistance Air resistance Review Friction Contents

2. 2 of 5 Boardworks Ltd 2007 Air resistance Friction also occurs when objects move through the air. This is called air resistance. Air resistance is a force that slows objects as they move through air. 3. 3 of 5 Boardworks Ltd 2007 Air resistance 4. 4 of 5 Boardworks Ltd 2007 Air resistance How could you investigate air resistance? Decide on a question to investigate, for example: does the size of a parachute affect how long it takes to fall? What could be measured in order to answer the question? What will be changed during the experiment and what will be kept the same? What units of measurement will be used to record the data, for example: time or distance? How many trials should the experiment include? 5. 5 of 5 Boardworks Ltd 2007 Try doing this quick air resistance experiment! Drop two pieces of paper from the same height, one flat and one crumpled up in a ball. Which piece of paper falls faster? Why? Air resistance 5 of 5 Boardworks Ltd 2007 Plenary 6. 5 of 5 Boardworks Ltd 2007 Try doing this quick air resistance experiment! Drop two pieces of paper from the same height, one flat and one crumpled up in a ball. Which piece of paper falls faster? Why? Air resistance 5 of 5 Boardworks Ltd 2007 Plenary