- time elapsed vs. distance (for an object in freefall)
- speed vs. fuel efficiency
- year vs. a city’s population
- etc.
Relationship |
Experiment or Existing Data |
Potential Difficulties |
time vs. distance for an object in freefall from rest |
experiment |
Is a stopwatch accurate enough? |
speed vs. fuel efficiency |
experiment |
What's a good way to measure the amount of fuel in a gas tank? |
year vs. city population |
existing data |
none |
string length vs. period of a swinging pendulum |
experiment |
none |
number of bounces vs. height of each bounch of a bouncing tennis ball |
experiment |
Is time vs. height of each bounce better? |
average distance from the sun vs. time of one revolution for a satellite of the sun |
existing data |
none |
animal mass vs. daily calorie consumption |
existing data |
none |
time vs. position for a spring released from tension |
experiment |
Is a fast camera a good way to do this? |