Name: Date: Einstein's Model Let's explore how Einstein's model of gravity explains the trajectory of the rocket moving at constant velocity near a massive object. In this model, the presence of mass changes the geometry of spacetime itself. 4. Cut out the circle on the Curved-Space Template. Next, cut along the dashed line next to arrow A. 5. Place the circle on the Flat-Space Template. Position it so that arrow C on the circle lines up with arrow C on the template and the initial rocket trajectory on the cone lines up with the trajectory on the template. What does the straight line on the circle showing the rocket's trajectory tell you about the rocket's motion? 6. Draw a star at the centre of the circle. Make a cone by sliding A over until it meets B. Tape the cone so that it stays together. What are you modelling by making a cone? 7. Place your cone on top of the Flat-Space Template in the same alignment as in Step 5. What has happened to the trajectory of the rocket? Why? 8. Compare the final direction of the rocket, in general terms, to its final direction in Newton's model. . In both Newton's model and Einstein's model, the presence of a star changed the rocket's path as it travelled through the gravitational field of the star. How is the gravitational field in Einstein's model different from the one in Newton's model