How should the student modify the setup to investigate how a motor works? A. Attach a crank or use a student finger to force the coil of wire to rotate.
B. Remove the magnet from the model.
C. Place an iron nail inside the coil of wire.
D. Replace the lamp with a battery.

Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.

The inverse square law applies to: intensity of sound gravitational force intensity of light electric force magnetic force

Which if these is an etiquette rule? (american football) question 10 options: a. debating with the ref over a call b. not communicating with your team c. post-game handshake d. taunting