WorksheetsH universal gravitation
Total questions: 20
Worksheet time: 10mins
Which of the following explains the meaning of the gravitational field, g?
It is identical in concept and magnitude to the gravitational force
It is the attractive pull of any object - analogous to a magnet's field
It is the same as the universal gravitational constant, G
It is the attractive pull of a planet that increases or decreases depending on what satellites are in the field
Which of the following options best explains why astronauts float in the ISS?
The ISS is in constant free fall toward Earth
Their gravitational attraction to Earth is too weak
The astronauts do not accelerate relative to Earth
There is no gravity in the ISS
The Earth's gravitational field is too weak in the ISS
How much does an astronaut's gravitational force on Earth compare to that on the ISS?
The weight is the exact same as on Earth
Only a bit less - about 90% of that on Earth
None because there is no gravity on the ISS
About the same as that of the Moon
About half compared to Earth
The Moon orbits Earth. If the Earth's mass is doubled, what happens to the Moon's speed?
It increases
It decreases
It remains unchanged
Mr. Tsung (70 kg) is orbiting the Earth. He eats too much and suddenly doubles his own mass. How will this action affect the Earth's gravitational field at his location?
It will not affect the Earth's gravitational field at that location
It will increase the Earth's gravitational field at that location
It will decrease the Earth's gravitational field at that location
In the diagram, a planet orbits the sun and the time periods are all t = 2 months. What can you conclude based on Kepler's laws?
The distance traveled by the planet in each time period is equal.
The areas swept in each time period are equal.
The planet has the same orbital speed at all times.
The planet is the same distance from the Sun at all times.
In the diagram, a planet orbits the sun and the time periods are all t = 2 months. What can you conclude based on Kepler's laws?
The distance traveled by the planet in each time period is equal.
The planet undergoes a circular orbit.
The planet's orbital speed is higher when it is closer to the Sun.
The planet is the same distance from the Sun at all times.
The Earth orbits the Sun. If the Earth's mass is doubled, what will happen to its period?
It increases
It decreases
It remains unchanged
The Earth orbits the Sun. If the Earth's orbital radius is doubled, what will happen to its period?
It increases
It decreases
It remains unchanged
