Time Segment 8: Reaction Time

How are vision and reaction time related? It’s harder to react to something when you can’t see it! Nikki & Ryan demonstrate reaction speed in two different tests: one in which their vision is normal, and one in which dark glasses make it harder to see. We’re preparing for a later segment which has an activity you can try at home along with Nikki and Ryan!

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Segment 8 Download Links
Use these links to download the movies to your computer. You can “control+click” to save the file.

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2 Comments on “Time Segment 8: Reaction Time”

  1. tamim Says:

    who has quicker reaction speed boy’s or girl’s?
    who has quicker reaction speed teenangers or adults?

    • There are many, many factors involved, but the biggest factor that determines reaction time (ignoring any disability due to age or injury) is size. Adults are slower than kids because they’re bigger – it takes longer for a signal from their brain to reach the muscle that controls a movement. Because of this, we could say that adolescent girls are faster than adult men because women are, on average, smaller than men and young people are, on average, smaller than adults.

      Thanks for watching!!

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