Physics Activities for Upper Elementary & Middle School Classrooms. Dr. Laura Henriques firstname.lastname@example.org 985-4801. Materials list:. Materials you will borrow: Scissors Tape Washers String. In your bag of materials Index card with rubber band & paperclip Pencil with pin Balloons
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Materials you will borrow:
In your bag of materials
Staple rubber band to index card.
Unfold a paperclip.
Hang it on the bottom of the rubber band.
Attach various weights to the bottom of the paperclip.
Note the resting position for each.
Simple force detector or accelerometer. Plexiglass casing with colored water sandwiched between. Available commercially.
Balloon rockets -- tape a balloon to a straw which has a string threaded through it. Release the blown up balloon. What motion is there? What forces are acting on the system? Can you make a 2-stage rocket? A rocket which returns to the launch site?
What happens to a marble that is rolling around the edge of a plate when it comes to the end?
What are the forces involved here?
No net force, the cork is at rest.
Note the position of the cork & the shape of the water. Net force to the right!
Unbalanced forces cause changes in velocity. As a basis for understanding this concept, students know: