Jeremy has a strong magnet. he put a paper clip on his desk and held the magnet sixteen centimeters over the paper clip. if the paper clip has a mass of 1 gram, and the magnet exerts a force of 0.003 newtons on the paper clip to pull it off the desk, what is the acceleration of the paper clip as it flies off the desk toward the magnet
answerthis idea can then be developed into an understanding that objects, such as the earth or electrically charged objects, can pull on other objects. it is important that students get a sense of electric and magnetic force fields (as well as gravity) and of some simple relations between magnetic and electric currents (benchmarks for science literacy, p. 93.) in later years, students will learn about gravitational force and how electric currents and magnets can exert a force as well.
they use size and weight