REEKO’S MAD SCIENTIST LAB

Galileo’s Free Fall

You may already know that there is a mystical force called gravity that pulls everything on Earth downward. This is really cool since if we didn’t have gravity we’d all be floating around in space. Do you think that this mysterious force pulls heavy objects faster than a light object? I think the answer may surprise you.

Supplies:

Partner
Chair
Newspaper
2 oranges
Grape

www.spartechsoftware.com/reeko/Experiments/gravity.htm

O texto I propõe a realização de uma experiência científica. No seu Caderno de Respostas, indique a ordem adequada em que os seguintes procedimentos devem ser observados para sua execução.

a) Hold the 2 oranges in each hand. Extend your arms straight out away from your body (and over the newspapers) so that each orange is the same height from the floor. Let go of both oranges at the same time. Did they hit the newspaper at roughly the same time?

b) Notice how the orange and the grape still hit the floor at the same time. Most people would have guessed that the orange would hit the floor first but we now know that gravity pulls all objects downward at the same speed, regardless of their weight.

c) Stand on the chair while your partner lies on the floor peering at the newspaper.

d) Now stand in the same position but this time hold an orange in one hand and a grape (or some other small object) in the other hand. Let go of both of these objects at the same time.

e) Place newspapers on the floor around the chair.