About

I made ScienceFix.com to share my favorite demos that I do in my middle school science classes.  

Contact Me
Search ScienceFix.com
Twitter
Delicious
Media that I like...
  • Something Funny Happened on the Way to the Moon
    Something Funny Happened on the Way to the Moon
    by Sara Howard
  • NOVA - Origins
    NOVA - Origins
    starring Neil Degrasse Tyson
  • Human Body: Pushing the Limits
    Human Body: Pushing the Limits
    starring Bray Poor

Entries in video (91)

Friday
Aug062010

Video Demo: Forces and Motion

According to Newton's first law of motion, an object moving at constant velocity will continue to move at constant velocity unless an outside unbalanced force is applied.  This is why moving objects on Earth will always slow down and stop.  The outside unbalanced force that does it is friction.  Watch the video to see how friction affects the motion of a marble on a track.

 

Sunday
Jul252010

Video Demo: Constant Speed Car

Speed is the rate at which an object covers a distance.  How do you know if that rate changes or not?  The video shows how to determine if the speed of an object is constant.

Tuesday
Jul202010

Video Demo: Accelerometer

Velocity is speed in a given direction.  How is a change in velocity (acceleration) detected?  Accelerometers.  Most smartphones have accelerometers to detect changes in velocity to monitor certain tasks.  The video demonstrates a very basic accelerometer and how it works.

Thursday
Jun172010

Video Demo: Centripetal Force


A simple demonstration of centripetal force. A marble is moving in a circular path. The wall of the roll of tape is applying a force on the marble toward the center of the circular path. That is centripetal force. Once the force is removed, the marble, because it has inertia, moves in a straight line.

Thursday
Jun172010

Video Demo: Fishing Weight Inertia


The more mass an object has, the more inertia it has.  Inertia is the tendency of an object to resist a change in motion.  There are two fishing weights.  One has more mass than the other.  A string applies an unbalanced force to the different weights.  Which one resists a change in motion?  Watch the video.

Page 1 ... 8 9 10 11 12 ... 19 Next 5 Entries »