# HS-ESS1-4: Orbital Motions

**Use mathematical or computational representations to predict the motion of orbiting objects in the solar system.**

**Clarification Statement: **Emphasis is on Newtonian gravitational laws governing orbital motions, which apply to human-made satellites as well as planets and moons.

**Assessment Boundary: **Mathematical representations for the gravitational attraction of bodies and Kepler’s Laws of orbital motions should not deal with more than two bodies, nor involve calculus.

**Science Practices**

Using Mathematics and Computational Thinking

**Disciplinary Core Ideas**

ESS1.B: Earth and the Solar System

**Crosscutting Concepts**

Scale, Proportion, and Quantity

### Assessments

### Phenomena

### Anchor Charts

### Video

### Vocabulary

Orbital motion

Objects (e.g. planets, moons, spacecraft)

Kepler’s Laws

- First (e = f/d)

- Second (equal area in equal time)

- Third (𝑇^2 ∝ 𝑅^3)

Solar system

Use mathematical or computational representations to predict the motion of orbiting objects in the solar system. (Scale, Proportion, and Quantity)

### Resources

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