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Vocabulary 1
Lifeboat Investigation
Swinger Investigation
Vocabulary 2
100
What is capacity?
the maximum amount of liquid (or anything else) that a container can hold
100
Describe the lifeboat investigation.
we added one penny at a time to mini-cups that were floating in the water until they sank
100

What is the more scientific name that we learned for "swinger?" 

pendulum

100
What is a system?
a set of objects working together
200
What word describes a mass supported at a point which is free to swing back and forth?
pendulum
200
What unit of measurement did we explore by doing the lifeboat experiment?
capacity
200
Describe the swinger investigation.
We swung pendulums made out of string and pennies.
200
What is the more scientific word for what we called a flipper?
catapult
300
What is a variable?
anything that you can change in an experiment that might affect the outcome
300
How "deep" was the standard lifeboat in our investigation?
3 cm
300
Name 3 variables that we predicted might affect the number of swings that a pendulum would make.
release point force of release length of swing mass at end of swing
300
What is an independent variable?
the variable that you already know ahead of time
400
What is a dependent variable?
the variable that you find out by doing an experiment
400
What was the conclusion of the lifeboat investigation?
the greater the capacity of the lifeboat, the greater the number of passengers it could hold
400
What are 2 variables that we thought would affect the results but actually did not.
release point mass at end of pendulum force of release
400
What is a controlled experiment?
an experiment in which one variable is changed and all other variables are kept the same
500
Name 2 of the 3 things that graphs can be used for.
to display results to look for experimental errors to make predictions
500
Name 3 of the 4 variables that affected how many pennies (passengers) each lifeboat could hold before it sank.
capacity (or size) of boat force used to place pennies in boat positioning of passengers condition of water (still or moving)
500
What was the conclusion of the Swinger Investigation?
As the length of the pendulum increases, the number of swings decreases
500

What does doing multiple trials in an investigation help with?

makes the results more trustworthy and reliable