Gravity causes all falling objects to accelerate at a rate of 98 m/s2.
O True
O False

Frost wedging occurs when water seeps into a crack in a rock, freezes, and causes the crack in the rock to widen. t or f

Part 1: a magnetic levitation or maglev train rides rails without touching them. explain how this works using your data. include the appropriate magnet drawing in your answer. part 2: two objects are near a bar magnet. one is about 1 cm away, while the other is 6 cm away. compare and contrast the magnetic force that affects each object. use your data to answer the question

Which of the following are used in an electrochemical cell? a. electrodes b. electrolyte c. terminals d. all of the above