Vocabulary
Anything you can change that might affect the outcome of an experiment
What is a variable?
Variable that affected the number of swings per 15 seconds
What is length?
Alexandra tested to see if type of music affects the height a plant grows.
Type of music is this type of variable.
What is the independent variable?
Examples of pendulums in real life
What is a grandfather clock, metronome, swing, etc
An experiment in which one, and only one, variable is changed in order to assess its effect.
What is a controlled experiment?
The two variables that made no difference in the number of swings per 15 seconds
What are mass and release position?
Alexandra tested to see if type of music affects the height a plant grows.
Plant type, amount of sunlight, amount of water, is this type of variable.
What is the controlled variable?
Type of variable graphed on the y-axis
What is the dependent variable?
The basic procedure used in an experiment, before changing any of the variables.
What is a standard?
The number of swings decreases as...
What happens as the length of the string increases?
Alexandra tested to see if type of music affects the height a plant grows.
Plant height is this type of variable
What is the dependent variable?
Type of variable graphed on the x-axis
What is the independent variable
The variable(s) held constant throughout the experiment (don't get changed at all)
What are controlled variables?
The standard system in our swinger experiment (describe all three variables)
38 cm string, one penny, 180 degree release position.
Ani ran an experiment to see if the temperature of water affected how many minutes it took one cup of water to freeze. She found that boiling water froze faster than cool water.
Time until frozen is this type of variable.
What is dependent variable?
A collection of things and processes that interact to perform some function
What is a system?
What we find out by doing the experiment
What is a dependent variable?
In the final swingers experiment, what type of variables were the following:
mass
# of swings
time
length
release position
mass-controlled
# of swings = dependent
time = controlled
length = independent
release position = controlled
Ani ran an experiment to see if the temperature of water affected how many minutes it took one cup of water to freeze. She found that boiling water froze faster than cool water.
Amount of water, type of container would be this type of variable.
What is the controlled variable?
This helped us make predictions about what string lengths we didn't test for
What is a coordinate graph / line of best fit