Using the on-screen scales and frame counters, gather the data needed to predict the linear and angular velocities of the block after the collision - use the video to check your predictions; revise them if necessary in

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.