human error problems with our own human fallibility
Drop a cake case once and once only from a height of 100cm and time how long it takes to fall.
Record your value:
Questions …. To be answered in full sentences:
is this result reliable, and why ?
is this result valid, and why ?
what kind of errors are you likely to have in this measurement?
Describe how you could make the reading more reliable
Carry out the method you have suggested.
Draw up a table to show all your readings.
State a reliable value for the time to fall 100cm.
Is your reliable value a valid value, and why?
Extension if time:
Refer to your “How science works” sheets … what kind of variable is
Apparatus: metre rule, stopclock, cake case.