Gravity and Orbits PhET Simulation
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Description
Students use a PhET computer simulation of the Earth and Sun orbit to see how different variables affect the orbit and the force of gravity between the two objects.
In this computer model, students change variables (mass and distance) of the Earth and Sun to see how they affect the force of gravity and the orbit of the Earth. In the first part of the activity, students observe the Earth’s orbit around the sun under ”normal” conditions. In part 2, students look at the relationship between mass and the force of gravity and how that affects the Earth’s orbit around the sun. In part 3, the students investigate the relationship between distance from the sun and the force of gravity and how that affects Earth’s orbit.
NGSS Alignment:
MS-ESS1-2. Develop and use a model to describe the role of gravity in the motions within galaxies and the solar system.
MS-PS2-4. Construct and present arguments using evidence to support the claim that gravitational interactions are attractive and depend on the masses of interacting objects.
This activity can be printed and used in class or use a link to make a copy of a digital google doc to complete it electronically.
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