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WorksheetsConceptual Questions on Gravitational Force
Total questions: 43
Worksheet time: 22mins
Which statement best describes the cause of gravity?
Gravity arises from surface area alone
Gravity arises from object charge alone
Gravity arises from object mass alone
Gravity arises from object temperature
Why does the Moon have weaker gravity than Earth?
It has no atmosphere at all
It is farther from the Sun
It rotates slower than Earth
It has less mass than Earth
A feather falls slowly compared to a stone mainly because
Air resistance is significant for feathers
Gravity does not act on feathers
Feathers have zero weight in air
Feathers have much smaller mass
Which statement about the importance of gravity is most accurate?
Gravity exists only near stars
Gravity only affects ocean tides
Gravity only keeps birds aloft
Gravity enables formation of planets
What primarily leads to black hole formation?
Fusion inside small dwarf planets
Cooling of interstellar gas clouds
Rapid planetary accretion events
Collapse of very massive stars
Two identical masses are placed apart on a line. Points A, B, C, and D lie along the line, with C midway between them and A, B, D equidistant from the nearer mass. Where is the gravitational field weakest?
At point D near the right mass
At point B near the left mass
At point A near the left mass
At point C between the masses
Which statement is correct about mass and weight?
Both mass and weight can be zero
Weight cannot be zero; mass can be zero
Mass cannot be zero; weight can be zero
Neither mass nor weight can be zero
Which pair correctly matches SI units of mass and weight?
Newton for both mass and weight
Kilogram for both mass and weight
Newton for mass, kilogram for weight
Kilogram for mass, newton for weight
Which property accurately distinguishes mass from weight?
Mass is constant; weight varies by location
Mass varies by location; weight is constant
Both vary by location equally
Both remain constant everywhere
Why is an object’s weight on the Moon about one-sixth of its Earth weight?
Moon’s atmosphere is thicker than Earth’s
Moon spins faster reducing effective weight
Moon’s g is smaller due to lower mass and radius
Moon is closer to the Sun increasing tides
By what factor does gravitational force change when the distance between two masses is halved?
It becomes one-fourth as large
It becomes half as large
It becomes twice as large
It becomes four times larger
Two bodies attract each other gravitationally. Which statement about the magnitudes of the forces each exerts on the other is correct?
Earth pulls moon with larger magnitude
Moon pulls earth with larger magnitude
Both exert equal magnitude forces
Magnitudes vary randomly over time
If the moon attracts the earth, why doesn’t the earth visibly accelerate toward the moon?
Earth’s mass is enormous
Moon’s gravity is repulsive
Gravitational force cancels completely
Distance makes gravity zero
According to the universal law of gravitation, how does gravitational force change when the distance between two masses is doubled?
Becomes half the original
Remains exactly the same
Becomes one-fourth the original
Becomes double the original
According to the universal law of gravitation, how does gravitational force change when the distance between two masses is tripled?
Becomes one-sixth the original
Becomes one-third the original
Becomes nine times the original
Becomes one-ninth the original
If one of two interacting masses is doubled while the other and distance remain fixed, what happens to the gravitational force between them?
Stays unchanged overall
Increases by a factor of two
Decreases by a factor of two
Increases by a factor of four
If both masses in a gravitational interaction are doubled and separation is unchanged, what happens to the force?
Decreases twofold overall
Increases fourfold overall
Increases twofold overall
Remains exactly unchanged
Weight is given by W = mg. If g is larger at the poles than at the equator, how will the weight of the same object compare?
Exactly the same both places
Heavier at the poles
Heavier at the equator
Zero at the equator
Gravitational acceleration on the moon’s surface is about one-sixth that on Earth. What is the weight of a 10 kg mass on the moon if its weight on Earth is approximately 98 N?
16.3 N approximately
9.8 N approximately
32.7 N approximately
65.3 N approximately
Why is G called the universal gravitational constant?
It depends on the masses used
It is identical in all locations
It changes with separation distance
It varies for each planet
Why is the universal gravitational constant G described as universal?
It is independent of bodies, space, and time
It changes with place and time on Earth
It depends on material and temperature conditions
It varies with the size and nature of bodies
At which location on Earth is a body's weight maximum, assuming identical altitude and conditions?
At the poles
At the equator
At mid-latitudes
At sea trenches
At which location on Earth is a body's weight minimum, assuming identical altitude and conditions?
At mid-latitudes
At mountain summits
At the equator
At the poles
Which statement best defines weight in physics?
Weight is inertia resisting motion
Weight is the force due to gravity
Weight is volume times density
Weight is mass measured in kilograms
What primarily causes tides in seas and oceans?
Wind-driven surface currents
Thermal expansion of seawater
Gravitational pull of Moon and Sun
Earth’s internal pressure cycles
Identical packets are dropped from airplanes at the equator and the north pole, both from height h with identical conditions. Which will reach the ground first and why?
Equator, because air density is always lower
Both, because g is constant everywhere
Pole, because g is larger at poles
Equator, because g is larger at equator
If Earth’s radius doubles with no change in mass, what happens to your weight at the surface? Use W=r2GMm .
It remains exactly the same
It becomes four times the original
It becomes one-fourth of original
It becomes one-half of original
Two bodies P and Q are placed at the same distance from Earth’s center and experience equal gravitational force from Earth. What can be concluded about their masses?
Heavier body feels less force
Masses must be equal
Conclusion requires their volumes
Masses can be different
Which factor most directly explains why g is smaller at the equator than at the poles?
Higher atmospheric pressure at equator
Lower Earth mass beneath equator
Stronger lunar gravity at equator
Greater distance from Earth’s center at equator
Which statement correctly defines the acceleration due to gravity g?
Acceleration a body gets due to Earth’s pull
Rate of change of velocity from any force
Force between two 1 kg masses 1 m apart
Constant setting the scale of gravitational fields
Which property distinguishes G from g?
G is vector while g is scalar
G varies with location on Earth
G is universal constant with fixed value
G depends on the celestial body’s radius
A satellite moves from Earth to Mars. How does g compare to G during this change?
Neither g nor G changes anywhere
G changes while g remains the same
Both g and G change significantly
g changes while G remains the same
At a point near Earth’s surface, which description best matches g and G regarding quantity type?
Both are scalar constants in physics
g is scalar whereas G is vector
g is vector whereas G is scalar
Both are vector quantities in mechanics
A body experiences a weight of 9.8 N near Earth’s surface. What is its mass? Take g=9.8m/s2 .
2 kg
0.5 kg
9.8 kg
1 kg
Two masses, 3 kg and 12 kg, are 12 m apart. Where should a 0.5 kg mass be placed along the line so the net gravitational force on it is zero?
6 m from 3 kg mass
3 m from 3 kg mass
4 m from 3 kg mass
8 m from 3 kg mass
Using F = Gm1m2/r2 , what happens to gravitational force if the distance between two fixed masses is doubled?
Force becomes half
Force becomes one-fourth
Force becomes one-eighth
Force stays unchanged
Which statement best describes gravitational force between two point masses?
Inversely proportional to distance squared
Inversely proportional to distance
Directly proportional to distance
Independent of distance
Identify a correct property of gravitational force.
It acts only on charged bodies
It requires physical contact to act
It is always attractive and weakest
It can be repulsive in vacuum
If the net gravitational force on a small mass between two larger masses is zero, what equality holds for magnitudes?
Force equals zero only at midpoint
Sum of forces equals mass ratio
F from left equals F from right
F from left equals mass of right
A constant downward force of 20 N acts on a body, and its weight is measured as 9.8 N. Which quantity equals 1 kg?
Its inertial mass
Its force of gravity
Its normal reaction
Its gravitational field
A trader buys and sells gold priced per unit weight at different altitudes. To maximize profit using gravity’s effect on weight, which strategy is correct?
Buy high altitude then sell same altitude
Buy high altitude then sell low altitude
Buy low altitude then sell high altitude
Buy low altitude then sell same altitude
Buy orbit altitude then sell mountain altitude
Jupiter’s mass is roughly 300 times Earth’s, but its radius is about ten times Earth’s. Using g ∝ M/R2 , which estimate best explains a 500 N person on Earth weighing about 1500 N on Jupiter?
Weight depends only on radius, not mass
10× radius decreases weight by 10× only
300× mass and 10× radius net about 3×
Mass and radius changes cancel completely
300× mass increases weight 300× exactly
Which statement correctly distinguishes mass and weight in these scenarios?
Weight equals mass times velocity at the surface
Mass depends on planet radius; weight does not
Weight and mass are identical physical quantities
Mass changes with altitude while weight stays constant
Weight is gravitational force; mass measures inertia
