Name ______
Rubber band wars
Activity 1: Me & You
Materials: 2 rubber bands & paper clip
1) Are the rubber bands the same size or different sizes?
2) Form a “ring” out of the paper clip. Attach the 2 rubber bands together using the paper clip ring. (represented by the black circle in the picture below.
3) Each of you should grab one end of the rubber band so that you look like the picture below. NO PULLING YET!!!!
4) Each of you pull equally on the rubber band. Which one stretches more? ______
5) Person 1 pull harder on the rubber band. Which one stretches more? ______
6) Person 2 pull harder on the rubber band. Which one stretches more? ______
7) Perform other rubber band scenarios. Be creative but within proper behavior expectations. Below record what you did & which stretched more.
What we didWhich stretched more
a)
b)
c)
d)
e)
Conclusions:
8) What did you notice about the rubber bands in each of the situations above?
9) What can you conclude about the forces acting on each of the rubber bands?
Activity 2: Me & the wall
Materials: 2 rubber bands 2 paper clips
10) Make a second version of the rubber bands in activity 1 so that each of you has a set of 2 rubber bands joined by a paper clip circle.
11) Attach a paper clip to one of the rubber bands. No need to make a circle.
12) Each of you, hook the new paper clip onto a sink. Pull on the rubber bands while attached to the sink.
Which one stretches more? ______
13) Repeat this with other immovable things in the room. Be creative but within proper behavior expectations. Below record what you did & which stretched more.
What I didWhich stretched more
a)
b)
c)
d)
e)
Conclusions:
14) What did you notice about the rubber bands in each of the situations above?
15) What can you conclude about the forces acting on each of the rubber bands?
Activity 3: Me & hanging stuff
Materials: 2 rubber bands 2 paper clips
16) Hook the new paper clip onto a mass. Let the mass hang from the rubber bands.
Which one stretches more? ______
17) Repeat this with other things hanging from the paper clip rubber band. Be creative but within proper behavior expectations. Below record what you did & which stretched more.
What I didWhich stretched more
a)
b)
Conclusions:
18) What did you notice about the rubber bands in each of the situations above?
19) What can you conclude about the forces acting on each of the rubber bands?
Activity 4: can of soda & water
20) Predict what will happen to the rubber bands when I lower the can of soda into the water?
21a) Describe what happened to the rubber bands when the can was lowered into the water.
b)Why do you think this happened.
Newton’s Third Law of Motion:
Explain how you Newton’s Third Law of motion was seen in each of the above activities.