Click here to load reader
Upload
chrismcgarvie
View
205
Download
0
Embed Size (px)
Citation preview
1 of 5 © Boardworks Ltd 20071 of 5 © Boardworks Ltd 2007
What is force?
Friction
Water resistance
Air resistance
Review
Friction
Con
tent
s
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 of 5 © Boardworks Ltd 2007
Air resistance
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 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
Ple
nary