WorksheetsUniv Gravitation
Total questions: 20
Worksheet time: 42mins
Tom and Jerry pass each other in the hallway. Tom has a mass of 65 kg, and Jerry has a mass of 55 kg. If the center of mass of the two students is 1.00 m, then what is the force acting on Tom?
2.4 x 10-7 N
2.1 x 10-7 N
3.4 x 10-7 N
2.9 x 10-7 N
Calculate the acceleration due to gravity on The moon. Radius is 1,740,000 m. And mass of the moon is 7.35 x 1022 kg
1.6 m/s2
2.1 m/s2
1.2 m/s2
3.3 m/s2
Calculate the acceleration due to gravity on Mars. Radius is 3,400,000 m. And mass of the moon is 6.42 x 1023 kg
1.6 m/s2
3.4 m/s2
3.7 m/s2
4.1 m/s2
Calculate the acceleration of gravity on the planet Neptune. It has a mass of 1.02 x 1026 kg and a radius of 25,000,000 m
9 m/s2
10 m/s2
11 m/s2
12 m/s2
When on the surface of a planet, Jenny experiences and acceleration of gravity of 20. m/s2. If she rode a space elevator doubling her distance from the center of the planet, her acceleration due to gravity would now be...
10 m/s2
20 m/s2
5 m/s2
2.5 m/s2
If the acceleration due to gravity on a planet is 5.0 m/s2, then what would be the weight of a 40. kg person?
40 N
200 N
20 N
8 N
A force of F acts between two objects of equal mass. If the distance between each (center-to-center) is doubled, then the force will...
double
increase 4 times
halve (1/2)
decrease to 1/4th
A 10 kg mass and a 5 kg mass are separated by 2.0 meters. The object that feels a greater gravitational pull is...
The 10 kg mass
The 5 kg mass
Both feel the same force
Depends if they are moving
How far from the surface of the Earth does an astronaut need to go to not experience the force of gravity from the earth?
An astronaut will always experience a force of gravity.
An altitude of 100 miles
An altitude of 200 miles
Any distance above the atmosphere, as long as they are in freefall.
What two planets are visible together above the horizon in the evening looking West in March of 2018?
Mercury
Venus
Jupiter
Saturn
Calculate the acceleration due to gravity on the space station, which is 6,734,000 m from the center of the 5.98 x 1024 kg earth.
8.8 m/s2
0
9.8 m/s2
1.2 m/s2
The acceleration due to gravity on the international space station is...
slightly less than that on the surface of the earth
nearly zero.
zero.
slightly more than that on the surface of the earth
Two masses experience a force of F acting between them. Which of the following would double the force to 2F?
Increase one object's mass by twice its original value.
Increase both object's mass by twice its original value.
Double the distance between the objects.
Halve the distance between the objects.
An object is orbiting around a massive object in a perfect circular path, when the central object mysteriously disappears. If the force of gravity is removed, then describe the motion of the object:
It continues in a straight path.
It continues to travel in a circle.
It travels in a spiral pattern
It's motion curves outward
Objects that are orbiting
Are falling toward the central object.
Experience no gravity.
Must be in perfect circular orbits.
Are not being orbited themselves.
The force that cause objects to travel in circular orbits is always acting... (Pick the best answer)
Towards the center of mass.
As a centripetal force
In a way to cause an acceleration due to the central mass.
All of the above.
Which of the following is NOT a conical orbit?
Circular
Elliptical
Parabolic
Linear
Which scientist explained how planets speed up and slow down depending on their position in the orbit?
Kepler
Brahe
Bruno
C0pernicus
Which scientist first proposed the concept that there are many stars like our sun, in a vast space, and each could have its own planets?
Bruno
Copernicus
Newton
Kepler
An Astronomical Unit is...
the distance between the earth and the sun
the mass of the sun
the number of planets in the solar system
N m2 / kg2
