Let's try again to practice our vocabulary...
Terms in this set (16)
What do you call anything you can change in an experiment that might affect the outcome?
What do you call the basic procedure used in a controlled experiment before changing any of the variables?
What do you call an experiment where only 1 variable is changed in order to assess its effect on the outcome?
What is an estimate on information or not a guess called?
What can graphs be used for in science?
to display results, look for experimental errors, and make predictions
Why do you test an experiment more than once?
conducting multiple experimental trials adds validity to results.
What does capacity mean?
the maximum amount something can hold.
In the lifeboat experiment, the independent variable was...
the size of the boat
In the swinger experiment, the independent variable was...
the length of string
In the flipper system experiment, the independent variable was...
the length of stick or degree of the angle.
In the lifeboat experiment, the dependent variable was...
the bigger the boat the more than passengers.
In the swinger experiment, the dependent variable was...
the longer the string, the fewer the swings.
In the flipper system experiment, the dependent variable was...
the shorter the stick the higher it goes and the bigger the angle the farther it goes.
Which variable might change the number of cycles the pendulum makes in 15 seconds?
Not counting a cycle correctly, not using a timer, not dropping it from the same position, using different string, or using different weights as the pendulum
What variable might effect the outcome of the lifeboat experiment?
measuring the boat wrong, not dropping in the pennies correctly, not drying the pennies off, using different coins, not cutting the boats correctly, not measuring the water correctly
What variable might effect the outcome of the flipper system experiment?
different lengths and lengths measured at the same time, not using the same weight (cork), not using a stick to push all the way down, or not measuring the spot correctly.