{{asɛmtiNe Ɔkyerɛwfo}} | Nhomakorabea | Nneɛma a ɛma wotumi yɛ ade

1

This week we have review our two quizzes, we review everything we have learned about gravity to date, dig into Newton's universal law of gravity. Watch this video on Newton's law of universal gravitation first.
Does this more or less jive with what we have talked about so far? how comfortable are you feeling about the equation

1

So the last video is the Ball-physics of understanding gravity. You will be expected to understand that for the take home test you are going to have next weekend. We aren't going into Einstein's general relativity, but we can go into a little bit of horse-physics. simply because it is fun.
thoughts?

1

From here on, we will be reviewing for the test that will be given as a take home between For which of the following examples would you count the all the zeros shown as a significant figures?

1

How many significant figures does each number have?

1

How many significant figures does the following addition problem have? 13.4+2.54

1

2

3

4

1

Measure the medal - What measurement should it be? See closeup, sorry its a little fuzzy.

0.058 m it is only precise to the mm.

0.0585 m it only has marks to the mm, but you can tell it is around halfway.

1

How many significant figures does answer to the following multiplication problem have? 13.2 x 3.2

1

2

3

4

1

1 AU is the same as

The diameter of the Earth's orbit

The radius of the Earth's orbit

The major Axis of the Earth's orbit

the semi-major axis of the Earth's orbit

1

Type your answer here

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Greater than/ less than question: Order these numbers from least (1) to greatest (4)

1

Which of the following is not in scientific notation? check all that apply.

1

Why do stars never exhibit retrograde motion?

1

explain how stellar parallax argued against heliocentrism

1

Copernicus' calculations using heliocentrism still didn't predict where planets would be in their orbits compared to the geocentric models. What did he still not know that would have made a difference?

1

according to Kepler's second law,

The distances in the orbit of these two sections are the same if the areas are the same.

The distances in the orbit of these two sections are the same if the angles are the same

The time it takes the earth to pass these sections are the same if the areas are the same

the time it takes the earth to pass these sections are the same if the angles are the same

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Which of the following is a relative measure and which of the following an absolute measure? Remember a relative measure depends on the frame of reference of the viewer, an absolute measure does not, and it is the same no matter where or how fast the viewer is moving.

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The farther a planet is from the sun, the orbital speed is

slower

faster

the same

unrelated to the distance from the sun

1

The force of gravity between two objects relies on which of the following factors, check all that apply

the mass of the larger object

the volume of the larger object

the density of the larger object

what the two objects are made from

the mass of the smaller object

the volume of the smaller object

the speed of the two objects in relation to each other

the distance between the two objects

the acceleration of the two objects

1

define tidal braking

1

define synchronous orbit

1

Using Kepler's second law, explain why comets are slow far from the sun, and fast near the sun.

1

Using Kepler's third law, explain what would happen if something managed to slow down a planet's orbit

1

How do you depict a negative vector?

1

Review all the other formatives. You should be able to see all the answers to all the questions (that have correct answers). Is there anything you want to go over in class?

	1	2	3	4
0.023
0.203
1,230
104.0
1,040
1.004
1000

	1	2	3	4
3.4 x 10^8
3.2 x 10^4
3,245,132
3.2 x 10^-9

	Absolute	relative
position of an object
distance between two objects
angular distance
angular diameter
linear distance
linear diameter
velocity

	1	2	3	4
0.023
0.203
1,230
104.0
1,040
1.004
1000

	1	2	3	4
3.4 x 10^8
3.2 x 10^4
3,245,132
3.2 x 10^-9

S1w7 Astronomy FC Gravity, Review for session test

S1w7 Astronomy FC Gravity, Review for session test

So the last video is the Ball-physics of understanding gravity. You will be expected to understand that for the take home test you are going to have next weekend. We aren't going into Einstein's general relativity, but we can go into a little bit of horse-physics. simply because it is fun.thoughts?

From here on, we will be reviewing for the test that will be given as a take home between For which of the following examples would you count the all the zeros shown as a significant figures?

How many significant figures does each number have?

How many significant figures does the following addition problem have? 13.4+2.54

Measure the medal - What measurement should it be? See closeup, sorry its a little fuzzy.

How many significant figures does answer to the following multiplication problem have? 13.2 x 3.2

1 AU is the same as

Type your answer here

Greater than/ less than question: Order these numbers from least (1) to greatest (4)

Which of the following is not in scientific notation? check all that apply.

Why do stars never exhibit retrograde motion?

explain how stellar parallax argued against heliocentrism

Copernicus' calculations using heliocentrism still didn't predict where planets would be in their orbits compared to the geocentric models. What did he still not know that would have made a difference?

according to Kepler's second law,

Which of the following is a relative measure and which of the following an absolute measure? Remember a relative measure depends on the frame of reference of the viewer, an absolute measure does not, and it is the same no matter where or how fast the viewer is moving.

The farther a planet is from the sun, the orbital speed is

The force of gravity between two objects relies on which of the following factors, check all that apply

define tidal braking

define synchronous orbit

Using Kepler's second law, explain why comets are slow far from the sun, and fast near the sun.

Using Kepler's third law, explain what would happen if something managed to slow down a planet's orbit

How do you depict a negative vector?

Review all the other formatives. You should be able to see all the answers to all the questions (that have correct answers). Is there anything you want to go over in class?

So the last video is the Ball-physics of understanding gravity. You will be expected to understand that for the take home test you are going to have next weekend. We aren't going into Einstein's general relativity, but we can go into a little bit of horse-physics. simply because it is fun.thoughts?

From here on, we will be reviewing for the test that will be given as a take home between For which of the following examples would you count the all the zeros shown as a significant figures?

How many significant figures does each number have?

How many significant figures does the following addition problem have? 13.4+2.54

Measure the medal - What measurement should it be? See closeup, sorry its a little fuzzy.

How many significant figures does answer to the following multiplication problem have? 13.2 x 3.2

1 AU is the same as

Type your answer here

Greater than/ less than question: Order these numbers from least (1) to greatest (4)

Which of the following is not in scientific notation? check all that apply.

Why do stars never exhibit retrograde motion?

explain how stellar parallax argued against heliocentrism

Copernicus' calculations using heliocentrism still didn't predict where planets would be in their orbits compared to the geocentric models. What did he still not know that would have made a difference?

according to Kepler's second law,

Which of the following is a relative measure and which of the following an absolute measure? Remember a relative measure depends on the frame of reference of the viewer, an absolute measure does not, and it is the same no matter where or how fast the viewer is moving.

The farther a planet is from the sun, the orbital speed is

The force of gravity between two objects relies on which of the following factors, check all that apply

define tidal braking

define synchronous orbit

Using Kepler's second law, explain why comets are slow far from the sun, and fast near the sun.

Using Kepler's third law, explain what would happen if something managed to slow down a planet's orbit

How do you depict a negative vector?

Review all the other formatives. You should be able to see all the answers to all the questions (that have correct answers). Is there anything you want to go over in class?