physics UAE- Gravitation

physics UAE- Gravitation

9th Grade - University

16 Qs

quiz-placeholder

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physics UAE- Gravitation

physics UAE- Gravitation

Assessment

Quiz

Physics

9th Grade - University

Medium

Created by

Taher Alismael

Used 8+ times

FREE Resource

16 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

the paths of the planets are ellipses, with the Sun at one focus.

Kepler’s 1st law

Kepler’s 2nd law

Kepler’s 3rd law

Newton Law of Gravity

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

an imaginary line from the Sun to a planet sweeps out equal areas in equal time intervals

Kepler’s first law

Kepler’s 2nd law

Kepler’s 3rd law

Newton law

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The square of the ratio of the period of planet A to the period of planet B is equal to the cube of the ratio of the distance between the centers of planet A and the Sun to the distance between the centers of planet B and the Sun

Kepler’s first law

Kepler’s 2nd law

Kepler’s 3rdlaw

Newton law

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Kepler’s third law

(TaTb)2=(rarb)3\left(\frac{Ta}{Tb}\right)^2=\left(\frac{r_a}{r_b}\right)^3

(TaTb)3=(rarb)2\left(\frac{Ta}{Tb}\right)^3=\left(\frac{ra}{rb}\right)^2

(raTb)2=(Tarb)3\left(\frac{r_a}{Tb}\right)^2=\left(\frac{Ta}{r_b}\right)^3

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

solve the problem: ( in 3 min)

the orbital radii of Jupiter’s moons using the diameter of Jupiter as a unit of measure. He found that Io, the closest moon to Jupiter, has a period of 1.8 days and is 4.2 units from the center of Jupiter. Callisto, the fourth moon from Jupiter, has a period of 16.7 days. Using the same units that Galileo used, predict Callisto’s distance from Jupiter?


Tc =16.7 days Ti =1.8 days rc =4.2 units ri =?

19 units

190 units

90 units

1900 units

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Satellite; A geosynchronous satellite is one that appears to remain over one spot on Earth, as shown in Figure . Assume that a geosynchronous satellite has an orbital radius of 4.23"107 m. Calculate its speed in orbit.

Earth radius =(6.38x106 m) , Earth mass=(5.97x1024 kg)

3.07x103 m/s

9424900 m/s

0.47 m/s

0.22 m/s

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Satellite; A geosynchronous satellite is one that appears to remain over one spot on Earth, as shown in Figure . Assume that a geosynchronous satellite has an orbital radius of 4.23"107 m. Calculate its period in orbit.

Earth radius =(6.38x106 m) , Earth mass=(5.97x1024 kg)

1.2x109 s

8.66 x103 s

8.66x104 s

1.2x104 s

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