Experiment Five

Objectives: We were to see if inreasing the force on an object increases the acceleration of the object.Hypothesis: 1.The speed of the cart getsfacter when the washers are added to the paper clips.2.The acceleration will become greater. The more force the faster the cart will move.Materials: Steel rod, tape, string, paperclip, washers, and halls cart.Procedures: 1. Tape the steel rod to the edge of a table so that it s directly over the edge. This will act to reduce friction in the experiment.2. Cut a piece of string 1 meter long. Attach one end of the string to the Hall’s cart using a paper clip.3. Open up a paper clip to form a loop on one end and a hook on the other. Tie the loop end of the paperclip to the free end of the string.4. Put the cart on the table about ¾ of a meter from the rod and hang the end of the paperclip over the rod. 5. Add washers to the paperclip hook one at a time until the cart begins to move (it should take 1-3 washers). Carefully observe the speed of the cart as it moves along the table. Repeat 4-5 times and record the number of washers used each time.6. Think about doubling or tripling on the cart by doubling or tripling the number of washers. Write your prediction down as a hypothesis. 7. Repeat step 5, but this time double the force by doubling the number of washers. Observe the speed and acceleration of the cart carefully. Repeat several times. Record your results.8. Repeat step 7, but this time triple the number of washers used in step 5. Observe the speed and acceleration of the cart carefully. Repeat several times. Record your results. Data:Trial 1: 1. Moved a little, went at a slow speed.2. Moved a lottle went slow again3. moved father and hit the rod.4. Moved at a faster speed and the washers hit the ground.Trial 2:1. Moved at a medium speed.2. The cart moved at a medium speed it hit the rod.3. The cart moved at a constant speed.Trial 3:1. The cat moved fast, the cart hit the rod.2. The cart went faster and almost fell over the rod.3. The cart fell off the table over the rod. Conclusions:*The force use to increse the speed of an object quickly will be greater then the force use to increase the speed of an object slowly. My hypothesis was correct. Yes the force follows the formula.