Section 25B (Earth Science)

1. A rocket is a device powered by a(n) __.

• 1. reaction engine

• Newton engine

• flux capacitor

• explosion/

  black powder

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A rocket uses Newton’s 3rd law, ___.

• inertia (things in motion tend to continue in motion unless acted on by an outside force)

• for every action there is an equal and opposite reaction

• force x mass = acceleration

• 

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1. A __ is a smaller body that orbits a larger one.

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1. The ___ is a natural satellite.

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1. ___ was the first manmade satellite.

• Voyager 1

• 1. Sputnik 1

• New Horizons

• the moon

categorize the types of satellite

Groups:

(a) low earth orbit satellite

,

(b) geostationary satellite

• example: International Space Station

• 100 miles (outside of earth) orbit

• ust far enough away from the earth’s surface to be out of the atmosphere

• con - you need more of them

• 21,000 miles (outside of earth) orbit

• pro- less expensive

• con- more expensive

• example: TV station provider

• pro - you need less of them

1. Categorize what satellites are used for.

Groups:

(a) Science

,

(b) Buisiness

,

(c) public service

• 1. ice cover

• internet

• navigation systems

• 1. climates

• TV

• 1. studying the earth’s surface

• weather

• phone

• 1. salinity

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__ are spacecraft that leave Earth’s orbit (and explore other parts of space).

• Probes

• Satellites

• Rovers

• Landers

​ (a)   that are traveling ​ (b)   distances often require ​ (c)   (using the sun/planet’s gravity to send a ​ (d)   further).

• Probes
• Satellites

• long
• short
• gravity assistance
• probe

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​ (a)   are ​ (b)   that are designed to land softly on a ​ (c)   and deploy a ​ (d)   to explore the ​ (e)   of that planet/moon.

• landers
• probes
• planet/moon
• rover
• surface

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NGSS.MS-ETS1-4