L
L
This is one of the most fun labs we'll do all year. It's also one of the best examples of actually using the scientific method. We have to collect data and measure the effect that an independant variable (number of shoes) has on speed.
I like this lab for a few reasons. First, we get to go outside, and that's always fun. Second, we end up with a huge amount of data that can be pretty interesting to analyze.
You're going to get your feet a little dirty, so don't wear your best pair of sneakers.
Do sneakers actually help people run faster?
That is, does your speed increase with the number (0, 1, or 2) of sneakers you wear?
Measure how long your classmates take to cross a pre-determined distance with different numbers of shoes.
Calculate the average speeds of your classmates.
Questions (show your work):
1. How long does it take light to get from the sun to Earth?
2. If the universe is 1.37 billion years old, how big can it be?
3. Earth is about 150 million km from the sun. Pluto is about 10 times as far away. How fast would a probe have to travel to get to Pluto in 10 years?