How Does The Temperature Change Of A Tennis Ball How High It Will Bounce

Here'south a fun science experiment that kids can carry out on their own. Does the temperature of a bouncy ball bear upon its bounce? Will a cold brawl bounce higher or lower than ane at room temperature? What about a hot bouncy ball? This was and so fun to explore! Nosotros had a adept approximate of what might happen, but we also thought that it was possible that there wouldn't be any departure at all. Well, nosotros got some clear results!

Here'due south what you need to do this experiment:

• Bouncy Balls – a least 6 identical assurance
• A measuring cup or mug for heating water in the microwave
• Access to a freezer
• Poster board
• Markers
• A tape mensurate or ruler
• Newspaper for recording results

Nosotros found this bag of 12 bouncy balls in the Target party alley. Great way to get several that are exactly the same! You'll want them to be the same size and weight as each other for this experiment.

Procedure

For each temperature (hot, cold, and room temperature) we tested two balls. That manner, we could be sure that any differences were due to the temperature and non that particular ball.

Step 1: Put two balls in the freezer. We got the best results after they had been in the freezer about an hour. Leaving them in longer than an hour did not seem to alter the results.

Step ii: Draw a drop line on the poster board. It doesn't matter what peak you drib the ball from, as long as it's the aforementioned each time. Be sure to simply drop it – don't bounciness it or throw it.

Step three: Drop two balls (one at a fourth dimension) and tape the height that they bounced after hit the flooring. It's best if the person recording the height is sitting on the floor for the most accurate perspective. Of course, it'due south incommunicable to get information technology 100% verbal, but yous'll be able to become a good judge of how high the ball rebounded.

Step 4: Adult assist needed! Microwave some h2o until it's very hot (we heated ours almost to boiling), and then drop in two balls. Allow the balls to sit down in the hot water for 10 minutes or so. Then remove them with a spoon (then that you don't accept to stick your hand in the hot h2o!) and effort dropping them.

Step 5: Remove the balls from the freezer and perform the bounce examination on those.

Then measure and record your results!

We observed a clear difference in how high the balls bounced depending on their temperature! Equally we had predicted, the common cold bouncy balls did non bounce as high as the room temperature ones, and the bouncy balls that we had heated bounced the highest.

The ruby lines are hot, the purple are room temperature, and the blue lines are common cold. As yous can see from our results, we saw a greater difference in bounce afterward heating (or cooling) the ball an additional amount. Cold test #i and #2 were with bouncy balls that had been in the freezer for 25 minutes. Test #three was a bouncy brawl that had been in the freezer for 50 min. Nosotros checked again afterward 2 hours in the freezer, just at that place was no difference from the ball that had been in the freezer fifty min.

I can't remember exactly how long we left the balls in the hot water, just I don't think information technology matters very much. 10-15 minutes should be good.

Here'southward the chart we made to record our results:

What'southward going on?

The temperature of the ball affects the elasticity of the material of the ball. We are guessing that rut makes the molecules movement faster in the bouncy ball, which gives it more than elasticity, but I did not notice annihilation in my research of this project that confirms that fact. The common cold ball does not have much elasticity, and more free energy is lost when it collides with the floor, with the consequence being that it does not bounciness as loftier.

It would also be fun to explore the effect of different surfaces on the bounciness of the bouncy brawl. Obviously, a ball won't bounce as loftier on carpeting. Simply how does physical compare to tile or wood?

Have fun experimenting!

Source: https://frugalfun4boys.com/bouncy-ball-science-experiment-temperature-ball-affect-bounce/

Posted by: delgadogated1935.blogspot.com

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