# A what is the orbital velocity on mars the orbit is

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A. What is the orbital velocity on Mars? _ The orbit is 3km/h. B. How does gravity on Mars compare to Earth and Venus? _ The gravity is less in terms of the strength it has to pull down on objects. 6. Extend your thinking: The escape velocity is the smallest velocity needed for the baseball to escape from the planet’s gravity and fly off into space, never to return. A. Which planet do you think has the lowest escape velocity? _ The planet mars. B. Use the Gizmo to test your prediction. Were you correct? _ Yes my prediction was correct. Activity C: Design a planet Get the Gizmo ready: · Click Reset . · On the Planet menu, select Custom . · Set the Velocity to 7.0 km/s. Question: How does a planet’s mass and radius affect a pitched ball? for
2. Form hypotheses: Fill in the blanks below: As its mass increases, the strength of a planet’s gravity .
As its radius increases, the strength of a planet’s gravity _decreases.
3. Run Gizmo: Set Planet mass to 0.0 of Earth (no mass), Planet radius to 1.0 of Earth (equal to Earth). Press Play and record results. Repeat for masses of 1.0 (equal to Earth) and 2.0. Planet mass Planet radius Veloc ity What happened? 0.0 1.0 7.0 km/s The ball flew into space didn’t come back. 1.0 1.0 7.0 km/s The ball went into a full orbit around the planet. 2.0 1.0 7.0 km/s
4. Analyze: How does increasing the mass affect the gravity of the planet? How do you know?
5. Experiment: Do the same kind of experiment, but now keep the Planet mass at 1.0 and change the Planet radius . Record results in a notebook or on a separate sheet of paper.
6. Apply: Using what you have learned, create a planet with the strongest possible gravity.