Which of the following will change the strength of a magnetic field? 1.increase speed
2.change the amount of electric current
3.remove atoms
4.it is always the same

Current enters a circuit at a: 1.positive terminal 2.negative terminal 3.low potential side 4.resistor

Which type of bond is found between the atoms of a molecule? a. metallic b. delocalized electron c. covalent d. ionic

Explain how the energy of rubber ball is tranforned as it roll down a ramp. give evidence that the energy of the og the ball remains the same at all points on the ramp