The SAT Subject Test in Physics assesses students' understanding of physics concepts and their ability to apply these concepts to solve problems.
Magnetism is the force that makes magnets stick to your fridge, but it also powers electric motors and generators!
Magnetic fields are invisible regions around magnets where forces act. Earth itself is a giant magnet.
Electric currents create magnetic fields. This link between electricity and magnetism is used in electromagnets, motors, and transformers.
From MRI machines to Maglev trains, electromagnetism is everywhere in modern technology.
A compass needle points north because of Earth’s magnetic field.
An electric motor spins because electricity creates a magnetic field.
Magnetism and electricity are linked, enabling motors, generators, and much more.