Question

Pretend you and your lab partner are designers for the PhET simulations and want to make a simulation for students to investigate gravity fields. Think about what you know about gravity and what kinds of experiments a student might want to do to learn about gravity. You may have to refresh your memory by using the text. Draw a design, by hand, for a gravity simulation. Explain why you included each component and explain at least one experiment that a student could do.

Answer 1

Answer

Gravity is one of the fundamental forces in the nature. It is that invisible force which pulls two bodies towards each other. It is a weak force when compared to the other natural forces. How big or small is this force depends on distance between the objects as well as their masses. Again it is an action reaction pair and equal in magnitude between two given bodies. It is a long range force, which extends to the infinity. Most of the activities around us and phenomenons can be explained by gravity. Landing after a jump is possible only by gravity. The atmosphere a blanketing the earth could be explained with gravity

For gravity experiment we could cosider two marbles of different masses which can be measured with the help of a balance in the lab. The distance between them can be find out using a metre scale. The attractive force between the two bodies can be find out with Newtons law of gravitation.