6.1.1. The Earth
A subsection of Physics, 5054, through 6. Space physics
Listing 9 of 9 questions
Table 11.1 shows details about eight planets in the solar system, their average distance from the Sun, their orbital period and their average surface temperature. Table 11.1 planet distance from the Sun / km orbital period / s average surface temperature / °C 5.8 × 107 7.6 × 106 Venus 1.1 × 108 1.9 × 107 Earth 1.5 × 108 3.2 × 107 Mars 2.3 × 108 5.9 × 107 −65 7.8 × 108 3.7 × 108 −110 Saturn 1.4 × 109 9.3 × 108 −140 2.9 × 109 2.6 × 109 −195 Neptune 4.5 × 109 5.2 × 109 −200 Complete Table 11.1 by adding the names of the three planets that are not given. Calculate the orbital speed of Mars as it travels around the Sun. orbital speed = km / s Describe the relationship between the distance of a planet from the Sun and its orbital period. Describe the relationship between the distance from the Sun and the average surface temperature of a planet. In your description, include any anomalies.
5054_s23_qp_21
THEORY
2023
Paper 2, Variant 1
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shows a satellite travelling at a constant speed in a circular orbit around the Earth. satellite (not to scale) State how speed differs from velocity. As it orbits the Earth, the satellite is experiencing an acceleration. Explain, in terms of its velocity, why the satellite is accelerating. On , draw an arrow, starting on the satellite, to show the direction of the satellite’s acceleration. As the satellite orbits the Earth, it experiences a force due to gravitational attraction. State and explain whether this force does work on the satellite and state whether the energy of the satellite is affected.
5054_w18_qp_22
THEORY
2018
Paper 2, Variant 2
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The Earth has a radius of 6.4 × 106 m and rotates on its axis once in every 24 hours. shows that as the Earth rotates, objects on the surface of the Earth move in circular paths around the axis of rotation. axis of rotation distance from equator equator Calculate the speed of an object at the equator as it moves in a circular path around the axis of rotation. speed = m / s Explain why the speed around the axis of rotation of an object on the Earth decreases as the distance of the object from the equator increases. The Earth moves around the Sun because a force acts on the Earth. State what provides this force. The orbit of the Earth around the Sun is an ellipse. Describe what happens to the magnitude of the force that acts on the Earth as it moves in this elliptical orbit. Explain why the Earth travels the slowest when it is at its furthest distance from the Sun.
5054_w24_qp_22
THEORY
2024
Paper 2, Variant 2
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Questions Discovered
9