Crumple two pieces of paper into balls, one larger and one smaller. Drop them both at the same time and discuss how their sizes and air resistance affect their falling speed. Balancing Act Have kids experiment with balancing different objects on their fingertips. Discuss how the weight and shap...
Astronauts exercise with these tools every day to prevent muscle loss.Space water is different During another experiment, Wang made a water film(膜). Then she added more water drops onto the film to make it a water ball. This can never happen on Earth. Why? We need to first un-derstand...
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Simple Gravity Experiment Collect a number of balls of different sizes and weights. You might also want to grab a stopwatch. Choose a location to conduct your experiment. You can simply have your child stand on the floor. You could also head to the park and drop balls from atop the playg...
Two balls of different masses and ideally similar sizes; for example, a baseball and a cricket ball, or a marble and a metal ball-bearing. Smaller balls also generally work better. You'll also need: A stopwatch with a lap feature A tape measure or ruler Duct tape A wall you ...
Experiment 2: 1/r^3 Let’s keep going! Let’s raise ‘r’ to an even higher power! We should expect even stronger precession, right? Well, let’s see: 1/r^3 force law. Try it in theGravity Simulatorwith: Gravity Fun at TestTubeGames.com: [ForceGr: r^(-3),Qual: 1,Zoom: 1...
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Following on from the ball and feather experiment another great example of Galileo’s discovery is to half fill one plastic bottle and leave another ( the same size ) empty. If dropped from the same height they will hit the ground at the same time!
Probably the most important experiment conducted for this purpose was one carried out by English chemist and physicist Henry Cavendish (1731–1810) in 1798. Cavendish suspended a light rod horizontally from a silk thread. At each end of the rod he hung a lead ball. Then he brought a third ...
out far more rigorous repeats of that experiment at different locations and elevations. Hefound a residual, which allowed him to conclude that ponderable bodies like the Earth drag the aether with them. He was able to determine the relative motion of the solar system with respect to the aether...