Sci 8 Earth's Motions HW #5

As mass increases, gravity ________________.

• Increases 
• Decreases 
• Stays the same 

As mass decreases, gravity ______________________.

• Increases 
• Decreases 
• Stays the same 

As distance increases, gravity __________________.

• Increases 
• Decreases 
• Stays the same 

As distance decreases, gravity ___________________.

• Increases 
• Decreases 
• Stays the same 

what doe heliocentric mean? 

• Earth centered
• Helium centered
• Sun centered
• Proof of the Big Bang

What force keeps the planets in their orbital paths around the sun?

• Satellites

• Gravity

• Attraction

• Velocity

An ellipse is drawn around two points called

• aphelion
• perihelion
• foci
• axis

A planet moves __________ when it is farthest from the sun.

• faster
• slower

Two factors effecting the strength of gravity between 2 objects are...

• weight and mass

• distance and weight

• mass and matter

• mass and distance

What is the relationship between the distance between a planet and the Sun, and the planet’s revolution around the Sun?

• The closer the planet is to the Sun, the slower it orbits.

• The farther the planet is to the Sun, the faster it orbits.

• The farther the planet is to the Sun, the brighter the sun is.

• The closer the planet is to the Sun, the faster it orbits.