Timmy placed a horseshoe magnet on his desk. He then sprinkled some iron filings around the magnet.

In the images below, the poles of the horseshoe magnet are shown in white. A horseshoe magnet has both a north pole and a south pole. Which of the following images best shows how the iron filings arranged themselves?

Ahydroelectric plant takes energy from water and turns it into electrical energy. what are the transformations of energy in the water molecules that are used in the process of generating electricity this way?

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.

Crowbar of 5 metre is used to lift an object of 800 metre if the effort arm is 200cm calculate the force applied