All Middle School Topics » Structure and Properties of Matter / Chemical Reactions / Forces and Interactions / Energy / Waves and Electromagnetic Radiation / Structure and Function of Living Things / Organisms and Ecosystems / Relationships in Ecosystems / Reproduction and Growth of Organisms / Natural Selection and Adaptations / Space Systems / History of Earth / Earth’s Systems / Weather and Climate / Human Impacts
high schoolForces and Interactions
This video posted on YouTube, but made by the BBC, brilliantly illustrates how in the absence of air resistance all objects are pulled toward the center of Earth at the same rate. Brian Cox, a famous professor from the University of Manchester hosts this video and also goes into some more detail about the history of Newton discovering gravity.
Forces and Motion (PS2.A)
- Newton’s second law accurately predicts changes in the motion of macroscopic objects. (HS-PS2-1)
- Momentum is defined for a particular frame of reference; it is the mass times the velocity of the object. (HS-PS2-2)
- If a system interacts with objects outside itself, the total momentum of the system can change; however, any such change is balanced by changes in the momentum of objects outside the system. (HS-PS2-2),(HS-PS2-3)
Types of Interactions (PS2.B)
- Newton’s law of universal gravitation and Coulomb’s law provide the mathematical models to describe and predict the effects of gravitational and electrostatic forces between distant objects. (HS-PS2-4)
- Forces at a distance are explained by fields (gravitational, electric, and magnetic) permeating space that can transfer energy through space. Magnets or electric currents cause magnetic fields; electric charges or changing magnetic fields cause electric fields. (HS-PS2-4),(HS-PS2-5)
Next Generation Science Standards is a multi-state effort to create new education standards that are “rich in content and practice, arranged in a coherent manner across disciplines and grades to provide all students an internationally benchmarked science education.”
Our team from Temple University has developed this resource for all K-12 students and teachers of science. These vetted learning tools align to the NGSS. Find one we should include? Just fill out the form.