we filled mini-cups with pennies and floated them in water
Describe the lifeboat investigation.
100
rubber bands and propeller
What 2 things made the planes fly?
100
catapult
What is the more scientific name for flipper?
100
a set of objects working together
What is a system?
200
release point, force of release, length of string, mass
What are 2 variables that affect the number of times a pendulum will swing?
200
3 cm
How "tall" was the mini-cup in the standard lifeboat system?
200
4 m or 400 cm
What was the length of the fishing line in the standard flight system?
200
weapon, gymnastics, etc.
Name one way a catapult is used in the real world.
200
the maximum volume of a container
What is capacity?
300
38 cm
How long was the string in the standard pendulum system?
300
the larger the capacity, the greater the passengers
What was the conclusion of the lifeboat investigation?
300
the distance the plane flew
What outcome did the variables of number of passengers, angle of string, and number of propeller turns affect?
300
flung or threw
What does the word "propelled" mean?
300
a mass supported at a point that is free to swing back and forth
What is the definition of pendulum?
400
as length of pendulum increase, the number of swings decreases
What was our conclusion for the Swingers Investigation?
400
capacity of the boat, force used to place passengers, position of passengers, condition of water, weight of pennies
What are 4 variables that affected the number of passengers that a boat could hold?
400
the greater the mass, the shorter the flight
What was the conclusion of the plane investigation?
400
mass of projectile, size of projectile, angle of launch, length of flip stick, how far flip stick is pressed down, position of projectile on stick
Name 4 variables that affected how far the projectile flew.
400
independent variable is on the x axis and is known before the experiment is done, dependent variable is on the y axis and is not known until the experiment is done
What are the two main differences between independent and dependent variables?