Plan:
Aim or research question (The relationship we are investigating, this must include the independent variable and dependent variable)
To find out how changing the type of surface of a block affects the friction force that is produced when the block is pulled across the
floor
Hypothesis (What will happen? What pattern or trend do you think you will find and why):
Independent variable (Which variable will be changed?)
Give a suitable range of values for this variable (at least 5 different values)
Sand paper, wood, foam.
Dependent variable (Which variable do you think will have to be measured/counted/observed in order to get some data or information
from this investigation?)
How will it be measured? (instrument and unit)
Controlled Variables: What other variables do you think are important in the investigation and will have to be fixed/controlled to make it
a fair test?
Variable
How will this variable be kept the same?
Equipment (Quantity, size, dimensions)
1x
1x
1x
1x
block of wood with foam surface
block of wood with sandpaper surface
block of wood
Force meter
Method:
Your method must have enough detail to enable another student to repeat the experiment.
Draw a labeled diagram of your equipment if possible
Now carry out your method in your group and record your group's raw data (rough results) on your group planning sheet
Results table(s) of raw and processed data:
Surface
Friction Force (N)
Sand Paper
Wood
Foam
Conclusion:
Draw a clear concise conclusion that:
• links your Aim to the trends in your graph
• supports it with evidence from the data
• explains your conclusion using scientific ideas