Planet Trivia
What planet is named after the God of War because of its resemblance to BLOOD?
Mars
True or False, your mass is the same on all planets
True
What happens to gravity as objects are moved away from each other?
Gravity decreases.
What is orbit?
The curved path of an object around a star, moon, or planet.
Define Gravity
Gravity - A force of attraction that draws an object towards the center of any physical body containing mass (like the Sun or Earth)
Jupiter
True or False, your weight is the same on all planets
False, it changes depending on the force of gravity
What happens to gravity as the distance between objects decreases?
Gravity increases between them.
What 2 factors must be in balance for orbit to occur?
Gravity & Velocity
Orbit - the curved path in space that is followed by an object going around and around a planet, moon, or star
This planet has the shortest year, with an average year of about 88 Earth Day
Mercury
On which planet would you weigh the most? Why?
Jupiter because it has the most mass and therefore will have more gravity acting on you.
Which planets orbit the sun slower?
Inner or Outer?
Outer
Which planet would have the highest orbital velocity? (Orbiting speed)
Mercury because it is closest.
Define Mass
The amount of matter or "stuff" within an object
The hottest planet in our solar system
Venus
On which planet would you weight the LEAST? Why?
Mercury because it has the least mass
As the distance between objects increases, the force of gravity between the objects will (increase / decrease).
As the distance between objects increases, the force of gravity between the objects will DECREASE.
If Saturn was moved closer to the sun could it remain in orbit? How?
Saturn could orbit the sun still if its velocity sped up, because moving it closer increased the gravity that Saturn feels and if it sped up it would prevent it from being drawn into the sun.
Define Weight
The force of Gravity on an object
The second smallest planet
Mars
As the difference in mass between objects increases, the force of gravity will increase.
As the difference in mass between objects INCREASES, the force of gravity will increase.
Which planet feels the sun's gravity the most? Why?
Mercury because its closest.
If Earth's gravity suddenly disappeared, what would happen to a satellite orbiting our planet?
It would go off into space.
What 3 things make a planet a planet?
- Cleared its orbit path of debris
- Spherical
- Must orbit a star