Interpret parts of an expression, such as terms, factors, and coefficients.įactor a quadratic expression to reveal the zeros of the function it defines. Magnets or electric currents cause magnetic fields electric charges or changing magnetic fields cause electric fields.Īlignment agreement: Thanks for your feedback! …and "electrical energy" may mean energy stored in a battery or energy transmitted by electric currents.Įmpirical evidence is required to differentiate between cause and correlation and make claims about specific causes and effects. Plan and conduct an investigation individually and collaboratively to produce data to serve as the basis for evidence, and in the design: decide on types, how much, and accuracy of data needed to produce reliable measurements and consider limitations on the precision of the data (e.g., number of trials, cost, risk, time), and refine the design accordingly.Īlignment agreement: Thanks for your feedback!įorces at a distance are explained by fields (gravitational, electric, and magnetic) permeating space that can transfer energy through space. This activity focuses on the following Three Dimensional Learning aspects of NGSS: Plan and conduct an investigation to provide evidence that an electric current can produce a magnetic field and that a changing magnetic field can produce an electric current.Ĭlick to view other curriculum aligned to this Performance Expectation Brainstorm real-world engineering applications of these principals.Determine the time required to launch a projectile.Determine the direction of an induced current if the direction changing magnetic field is known.
![projectile launcher projectile launcher](https://content.instructables.com/ORIG/FP5/KSW1/I6HSGZFU/FP5KSW1I6HSGZFU.jpg)
![projectile launcher projectile launcher](https://www.inds.co.uk/wp-content/uploads/2015/09/Projectile_Launcher_Pump.jpg)
Students brainstorm how these principals might be applied to real-world engineering problems. They are introduced to Faraday's law and Lenz's law to explain the physics behind the launcher.
![projectile launcher projectile launcher](https://www.cyberpunk2077mod.com/wp-content/uploads/2021/01/Projectile-Launcher-Launch-System-Brown-1.png)
Based on these observations, students record similarities and differences and hypothesize on the underling physics. Then they test three different launchers, in which the number of coils used is different, measuring the range and comparing the three designs. Groups start by algebraically solving the equations of motion for the velocity at the time when a projectile leaves a launcher. Students explore electromagnetism and engineering concepts using optimization techniques to design an efficient magnetic launcher.