Gravity/Relativity/Astronomers Retest

What did Galileo contribute to the understanding of falling objects?

• Objects fall at different rates based on mass

• Objects maintain a constant acceleration during free fall

• Falling objects follow circular trajectories

• Impetus influences the speed of falling objects

Tags

NGSS.MS-PS2-2

Match the following

• Ptolemy

• gravity/planetary motion

• Eratosthenes

• 3 laws of planetary motion

• Kepler

• measured radius of earth

• Galileo

• Wrote Almagest

• Newton

• "invented" telescope

Tags

NGSS.HS-PS2-4

NGSS.HS-ESS1-4

The number 6.67 x 10 ^-11 N* m² / kg² is called the

• Universal speed constant

• centripetal force

• Universal Gravitational constant

• Earth's Gravitational constant

Tags

NGSS.HS-PS2-4

The special theory of relativity was derived by:

• Galileo
• Newton
• Einstein
• Sitter

Match the following of Special Relativity

• Relativity, perception of events

• Length Contraction

• E=mc²

• Time Dilation

• Items look smaller when moving faster

• Simultaneity

• Time slows down for objects moving fast

• Mass-Energy Equivalence Equation

Match the following

• moon is 1/3 size of Earth.

• Somerville

• taught others complex theories

• Herschel

• observed the supernova of 1572

• Hipparchus

• Star Maps, predicted solar eclipses

• Aristarchus

• Catalog of stars, found major comets

• Brache

Which statement about gravity is true?

• gravity causes objects to pull towards one another

• gravity causes objects to push away from each other

• gravity only takes place between planets

• the moon doesn't have any gravity

Tags

NGSS.MS-PS2-4

As distance between two objects increase the pull of gravity 

• Increases
• Decreases
• Stays the same

Tags

NGSS.HS-PS2-4

If an object has MORE ________, it will have MORE gravitational force.

• mass

• distance

Tags

NGSS.HS-PS2-4

You have two objects with masses of 5 kg and 3 kg. They are separated by 10m. What is the gravitational force?

• 1x10^-11

• 5.49x10³

• 1.5

• .015

Tags

NGSS.HS-PS2-4