What is the correct term to describe the speed needed to break free from Earth's gravitational pull?
IB Physics Fields: Escape Speed

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Arts, Other, Physics, Science
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4th Grade - University
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Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Escape velocity
Escape speed
Orbital speed
Terminal velocity
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following variables is NOT needed to calculate escape speed?
Mass of the object
Gravitational constant
Mass of the planet
Distance from the planet's center
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
During a rocket launch, what happens to the kinetic energy as the rocket ascends?
It remains constant
It increases
It decreases
It becomes zero
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What principle is used to derive the escape speed formula?
Conservation of Energy
Newton's First Law
Law of Universal Gravitation
Conservation of Momentum
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does increasing the mass of a planet affect the escape speed?
It doubles the escape speed
It increases the escape speed
It has no effect on escape speed
It decreases the escape speed
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main difference between escape speed and orbital speed?
They are the same
Orbital speed is always less than escape speed
Orbital speed depends on the mass of the object
Escape speed is always less than orbital speed
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the sample calculation, what is the escape speed required for a space shuttle to leave Earth's surface?
9.8 km/s
7.9 km/s
11.2 km/s
15.0 km/s
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