Describe the relationship between electricity and magnetism.
sample response: electrical and magnetic fields occur together. a change in current induces a magnetic field. a change in magnetic field induces a current.

Two friends are having a conversation. anna says a satellite in orbit is in freefall because the satellite keeps falling toward earth. tom says a satellite in orbit is not in freefall because the acceleration due to gravity is not 9.80 m/2 . who do you agree with and why?

Several mountains together form a mountain . a few of these combined form a mountain system. several systems combined form a mountain , which can stretch thousands of miles in length.

Which of the following is an example of motion in two dimensions?