Title: Dryer Sheets
In this Science Update, from Science NetLinks, you'll hear how the old saying opposites attract relates to your laundry. Positively charged particles are attracted to negatively charged particles, which can cause static cling in clothing. Science Updates are audio interviews with scientists and are accompanied by a set of questions as well as links to related Science NetLinks lessons and other related resources.
Standard(s): [S1] PHY (9-12) 8: Summarize similarities in the calculation of electrical, magnetic, and gravitational forces between objects.
Title: Visualizing the Key of C
Graphing calculators Web Address URL:
[SC2015] PHYS (9-12) 9: Obtain and evaluate information regarding technical devices to describe wave propagation of electromagnetic radiation and compare it to sound propagation. (e.g., wireless telephones, magnetic resonance imaging [MRI], microwave systems, Radio Detection and Ranging [RADAR], SONAR, ultrasound).Digital Tool Description: In this lesson students will calculate terms of a geometric sequence to determine frequencies of the chromatic scale using a graphic calculator. Students will then compare sine waves to see and hear the trigonometry behind harmonious and dissonant note combinations.
Title: Levitating Top Demonstration
Gyroscopic motion, like that of a spinning top, creates a force that can be used to stabilize an object. Magnets can be used to either attract other magnets or repel them. When the forces of gyroscopic motion, magnetic repulsion, and gravity are all balanced correctly object can be made to levitate.
The amazing process of levitation is displayed excellently using a Levitron top. There are no camera tricks, mirrors or wires used to make our top "float". As hundreds of our visitors can tell you this is just an amazing sight to see.
Note: This video does not include audio. Standard(s):
[SC2015] PSC (9-12) 8: Apply Newton's laws to predict the resulting motion of a system by constructing force diagrams that identify the external forces acting on the system, including friction (e.g., a book on a table, an object being pushed across a floor, an accelerating car).
Title: Nuclear and Gravitational Force
This podcast is one of a series of podcasts that are designed to teach about the forces in our world. This particular podcast focuses on gravitational and nuclear forces. The students discuss Universal Gravitation, and nuclear forces and demonstrate each in the podcast. They also define the unit for force. Standard(s):
[SC2015] PHYS (9-12) 2: Identify external forces in a system and apply Newton's laws graphically by using models such as free-body diagrams to explain how the motion of an object is affected, ranging from simple to complex, and including circular motion.