when something is released from a point, moves away and comes back to that starting point
100
What did we propel through the air in our flipper investigation?
corks and rubber stoppers
100
What is the universal format used by scientists to write up their experiments?
The reason we do the scientific method.
100
What is the more scientific name that we learned for "swinger?"
You may risk your 100 points and try to spell your correct answer! If you are right, you gain 100 points. If you are wrong, you get no points at all.
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
Name one variable that we learned made the cork fly further through the air.
flipper stick pushed in,
cork near end,
flipper stick pushed down all the way,
flipper base at an angle
200
What is a hypothesis?
a statement about an observation or scientific problem that can be tested.
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
Describe the flipper investigation.
a popsicle stick flipper stuck into a flipper base that propels a cork when the fipper stick is pushed down
300
The items that you list in an experiment.
materials
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
Name 3 of the 4 variables that made the cork fly further through the air.
more pressure on flipper stick
flipper stick stuck further into the flipper base
flipper stick pushed all the way down
flipper base placed at an angle
400
What describes exactly what you learned from your experiment?
conclusion
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
What is a standard?
basic procedure used in a controlled experiment, before changing any of the variables
500
How could we figure out if the mass of the propelled object affects how far the object would travel? What variable would we change and what variables would we control (keep the same)?
use rubber corks for heavier
use paper balls for lighter
keep the standard flipper system variables the same
500
Where do you record your results during an experiment?
In a data table
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?