The shapes of planets, stars and the solar system.ġf. Students know the role of gravity in forming and maintaining That are acting on a single static object, including gravity, elasticįorces due to tension or compression in matter, and friction.Ģg. Students know how to identify separately the two or more forces Students know when an object is subject to two or more forcesĪt once, the result is the cumulative effect of all the forces.Ģd. (both should hit the ground very close to the same time)Ģb.
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