Kinetic Energy Calculator Worksheet In this activity, you will study what effect mass and velocity have on kinetic energy, the energy of motion. We will investigate whether the effects are linear (kinetic energy increases regularly with mass or an increase in velocity) or exponentially kinetic energy increases very fast with an increase in mass or an increase in velocity). 2. Enter the following values for the velocity of the object and hit the calculate button. YOU ONLY NEED TO ENTER THE NUMBER, NOT THE UNIT, “m/s.” 3. Record the Kinetic Energy in the chart below. Velocity (m/s) Part One We will first examine whether heavier objects have more kinetic energy than lighter objects. Do the following steps: 1. 2. 3. Enter the velocity as 2 m/s. You will not change that value for Part One. YOU ONLY NEED TO ENTER THE NUMBER, NOT THE UNIT, “m/s” Enter the following values for the mass of the object and hit the calculate button. YOU ONLY NEED TO ENTER THE NUMBER, NOT THE UNIT, “kg.” Record the Kinetic Energy in the chart below. Mass (kg) Kinetic Energy (J) 1 2 3 4 5 6 7 8 9 10 Part Two Next we will change the velocity of the objects to see if faster moving objects have more kinetic energy than slower moving objects. Kinetic Energy (J) 1 2 3 4 5 6 7 8 9 10 Graphing the Data Next you will draw two graphs, one for each data table. Use about half of a side of a sheet of graph paper for each graph so you can fit them both on one side Graph One Using the data from Part One, draw a graph. 1. The x-axis will be the Mass. Be sure to include the unit. 2. The y-axis will be the Kinetic Energy. Be sure to include the unit. 3. Title your graph “Kinetic Energy vs. Mass.” 4. If your graph looks like a straight line, draw a line through your dots with a ruler. If not, draw a smooth curve through your dots. 1. Enter the mass as 2 kg. You will not change the mass for this part. YOU ONLY NEED TO ENTER THE NUMBER, NOT THE UNIT, “kg.” Last updated 29 August 2006 Graph Two Using the data from Part One, draw a graph. 1. The x-axis will be the Velocity. Be sure to include the unit. 2. The y-axis will be the Kinetic Energy. Be sure to include the unit. 3. Title your graph “Kinetic Energy vs. Velocity.” 4. If your graph looks like a straight line, draw a line through your dots with a ruler. If not, draw a smooth curve through your dots. What You Will Turn In On a separate sheet of loose-leaf, answer the following questions. Be sure to use complete sentences and use at least two or three sentences to answer each question. Never begin a sentence with “Yes” or “No.” Staple your graphs to that sheet and return it to your teacher for grading. Questions 1. Look at Graph One. Does the kinetic energy increases regularly with an increase in mass or does it increase exponentially? How can you tell by the shape of the graph? 2. Look at Graph Two. Does the kinetic energy increases regularly with an increase in velocity or does it increase exponentially? How can you tell by the shape of the graph? 3. Suppose you are riding in a car. Would your kinetic energy increase more if you doubled the weight of the vehicle, or if you doubled your speed? Refer back to the graphs to see which has a greater effect. 4. Would it be possible for a small man running fast to have the same kinetic energy as a large man who runs slowly? Explain. Last updated 29 August 2006