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Worksheetsorbits, Effects and S-E-M
Total questions: 17
Worksheet time: 12mins
What does the eccentricity of an ellipse describe?
The shape of the ellipse compared to a circle
The length of the major axis of the ellipse
The distance between the foci of the ellipse
The area of the ellipse
What is the eccentricity of Earth's orbit?
0.05
0.09
0.01
0.017
Which diagram shows a planet with the least eccentric orbit?
Match Kepler's Laws to their definition
Kepler's 1st Law
Planets orbit in an ellipse shape with the Sun at one focus.
Kepler's 2nd Law
Planets sweep out equal areas in equal time
Kepler's 3rd Law
Planets with smaller orbits and that are closer to the Sun travel more quickly.
What are the three sources of heat contributed to Earth's differentiation?
energy from objects hitting the Earth (kinetic)
energy of compaction as gravity pulled the material inward (potential)
energy of radioactive material as it decays (nuclear)
energy of the Sun (radiant)
What are the two positions the moon will be in during a Spring Tide?
full moon
1st-quarter Moon
new moon
3rd-quarter Moon
Why do we always see the same side of the Moon from Earth?
The Moon does not rotate on its axis
The period of rotation of the Moon is the same as the period it takes to complete its orbit
The Moon rotates faster than it orbits the Earth
The Moon is stationary relative to Earth
What is the primary reason models are used in science?
To make scientific investigations more complex
To represent things that are too large, distant, or unsafe to observe directly
To provide exact replicas of real-world objects
To replace direct observation entirely
What causes the Moon to appear to shine?
Its own light
Light reflected from the Sun
Light from the Earth
Light from nearby stars
According to Newton's law of gravitation, the force between two masses is inversely proportional to the square of the distance between them. What does this imply?
The force increases as the distance decreases
The force decreases as the distance increases
The force is not affected by the distance
The force is directly proportional to the distance
What does Newton's first law of motion state?
An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
Every action has an equal and opposite reaction.
Force equals mass times acceleration.
Gravity is directly proportional to the mass of the objects and inversely proportional to the square of the distance between them.
What is the result of the combination of a planet's inertia and the Sun's gravitational pull?
The planet moves in a straight line.
The planet has an elliptical orbit.
The planet exits the solar system.
The planet remains stationary.
What occurs during a lunar eclipse?
The Moon moves between the Sun and Earth, blocking sunlight from Earth.
The Sun moves between the Moon and Earth, casting a shadow on the Moon.
The Earth moves between the Sun and Moon, casting a shadow on the Moon.
The Moon moves into the Earth's shadow during daytime.
