Newtons cradle
If you have the time to show this whole episode to your students. I think it is worth it, except for the chicken on the car myth. I like the way they size up the models.
Daily question- what are Newtons three laws?
Daily questions, brainbusters, warm-ups, whatever you call it, the first few minutes of class sets the tone for the rest of the day. Here you will find popular video clips on a variety of topics, all intended to get your students excited about science.