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- 1. Multiple Choice
The picture shows the gravitational field in the space surrounding the Earth. What is creating this gravitational field?
The gravitational force.
The mass of the Earth.
The distance of the Earth.
The universal gravitational constant.
- 2. Multiple Choice
Kepler's Second Law states
objects attract other objects with a force that is directly proportional to the product of their masses
the square of the ratio of the periods of any two planets revolving around the Sun is equal to the cube of the ratio of their average distance from the Sun
An imaginary line joining a planet and the sun sweeps out an equal area of space in equal amounts of time.
Planets move about the Sun in an elliptical orbit with the Sun at one of the foci.
- 3. Multiple ChoiceKepler's 2nd Law deals withthe shape of the planets' orbitsthe speed/area the planet travelsthe length of time it takes the planet to orbit the sun
- 4. Multiple ChoiceKepler's first law states that the orbits of the planets are oval in shape orellipsesperfect circles
- 5. Multiple ChoiceThe path a planet travels around the sun is called itsorbitellipsebarycenterprecession
- 6. Multiple ChoiceWhat is inertia?amount of atomsamount of gravitational pullthe sizeresistance to a change in motion
- 7. Multiple Choice
There is a car moves in a circle. Which of the following can explain the above situation?
There is a force acts in opposite direction with car's weight.
There is a force acts as centripetal force towards the centre of circle.
There is a force acts in the direction of movement.
There is a force acts away from the centre of circle.
- 8. Multiple Choice
Which of the following statements is correct with respect to G and g?
G is a fundamental constant, whereas g is a physical quantity and subject to change.
Both G and g can change, but g can only change if you go to a different planet.
G and g are both constant, but g is determined by the mass and radius of the Earth.
The strength of G is determined by g.
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