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Universal Gravitation and Electristatic Basics Flashcards | StudBud
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Universal Gravitation and Electristatic Basics
Universal Gravitation and Electristatic Basics
20 terms
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Newton's Law of Universal Gravitation
Flashcards
20 cards
F
Practice quiz
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Host live
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Questions
20
Answers
1
What's the F
grav
on a student on planet Z : m
1
= 60 kg; m
2
= 5.98 x10
24
kg; d = 3.18 x10
6
m
2298 N
2367 N
4598 N
6327 N
2
The value of G is a huge number; that's why the attraction between the Sun and Earth is so big
False
True
3
What's the F
grav
on a student on planet X : m
1
= 60 kg; m
2
= 11.96 x10
24
kg; d = 6.37 x10
6
m
661 N
1180 N
996 N
3 N
4
In the equation
F
grav
= G * m
1
* m
2
/ d
2
the symbol
G
represents...
the gravitational constant
gravity
the acceleration of gravity
5
Two balloons are 0.5 m apart and each have a charge of +1.2E-7 C. The F
E
between the balloons is
attractive
neither
repulsive
cannot be determined
6
Which subatomic particle is able to move "freely"?
neutrons
electrons
neutrino
protons
7
Calculate the F
grav
between 2 students in class where m
1
= 60 kg; m
2
= 60 kg; d = 1 m
2.4 x 10-9 N
2.4 x 10-5 N
2.4 x 10-7 N
0 N
8
The idea that any 2 objects gravitationally attract each other is a theory with no evidence
false
true
9
Astronauts in the space shuttle seem to float around because...
there's no weight in space
there is no gravity in space
there is no air resistance
the astronauts are in continuous free fall
10
The greater Earth's radius is, the _______ that another object will be attracted to it.
more
less
11
Calculate the F
grav
between Earth and a student m
1
= 60 kg; m
2
= 5.98 x10
24
kg; d = 6.37 x10
6
m
257 N
590 N
691 N
875 N
12
When comparing gravitational andelectrical forces:
Electrical is both attractive and repulsive.
Gravitational is attractive only.
Electrical is repulsive only.
Gravitational is repulsive only.
13
What is the following formula commonly called and why is it useful?
the Electrostatics Equation, used to calculate electricity
the Force Equation, used to combat Lord Vader
Coulomb's Law; used to calculate electric force
Universal Gravitation, used to calculate the force ofgravity
14
2 students attract each other with a gravitational force, however it's impossible to calculate
True
False
15
Newton proposed that the law of universal gravitation explains...
the fall of an apple to the Earth
the gravitational interaction between all objects with mass
ALL of the above
the motion of the moon and other space objects
16
Electrostatics is _____________.
having to do with probability and statistics
the study of charges at rest
the study of flowing electrons
the study of electricity
17
The more massive the Earth is, the _____ that another object will be attracted to it.
more
less
18
What's so
universal
about Newton's law of gravitation?
the amount of grav. force is the same for all objects
the force of gravity acts between all objects, even 2 people
the accelerat. caused by gravity is the same for all objects
all objects with color attract
19
The force of gravity between a planet and an object on its surface depends upon...
the volume of the object
the radius of the planet
the mass of the object
the mass of the planet
20
The more massive an object is, the _______ that the object will be attracted to Earth
more
less
