The gravitational force between two objects depends on:
a) Their masses and the distance between them
b) Their velocities and the distance between them
c) Their masses and their acceleration
d) The acceleration due to gravity
Newton’s Law of Universal Gravitation states that:
a) Every particle in the universe attracts every other particle with a force
b) The force between two objects is directly proportional to the square of the distance between them
c) The force is inversely proportional to the product of the masses
d) Both a and b
The gravitational force between two objects is inversely proportional to:
a) The square of the distance between them
b) The square of the masses
c) The product of their masses
d) The distance between them
According to Newton’s law, if the mass of one object is doubled, the gravitational force between the objects:
a) Doubles
b) Increases by a factor of four
c) Halves
d) Remains the same
The constant of proportionality in Newton’s law of gravitation is called:
a) Gravitational constant
b) Gravitational force
c) Mass
d) Acceleration due to gravity
The gravitational force between two objects increases when:
a) The distance between them increases
b) The masses of the objects decrease
c) The distance between them decreases
d) The velocity of the objects increases
The gravitational force between two objects is directly proportional to:
a) The product of their masses
b) The square of the distance between them
c) The sum of their masses
d) The distance between them
The gravitational force between two objects is strongest when:
a) They are far apart
b) Their masses are equal
c) The distance between them is small
d) Their velocities are high
The gravitational force between two objects is weaker when:
a) They are closer together
b) Their masses are larger
c) The distance between them increases
d) The gravitational constant is smaller
Newton’s law of universal gravitation was proposed by:
a) Albert Einstein
b) Galileo Galilei
c) Isaac Newton
d) Johannes Kepler
The gravitational force between two objects of mass 1 kg and 2 kg separated by 1 meter is:
a) 6.674 × 10⁻¹¹ N
b) 6.674 × 10⁻¹⁷ N
c) 6.674 × 10⁻⁸ N
d) 6.674 × 10⁻¹⁹ N
The value of the gravitational constant (G) is:
a) 6.674 × 10⁻¹¹ N·m²/kg²
b) 6.674 × 10⁻¹⁹ N·m²/kg²
c) 9.8 N·kg/m²
d) 9.8 m/s²
The force of gravity on the surface of Earth is equal to:
a) 9.8 N
b) 9.8 m/s²
c) 6.674 × 10⁻¹¹ N·m²/kg²
d) 0 N
According to Newton’s law of universal gravitation, gravitational force is:
a) A vector quantity
b) A scalar quantity
c) A type of electromagnetic force
d) Dependent only on the masses of the objects
If the distance between two masses is doubled, the gravitational force between them becomes:
a) Double
b) Half
c) One-quarter
d) Four times stronger
The gravitational force between two objects is always:
a) Attractive
b) Repulsive
c) Zero
d) Dependent on the velocity of the objects
The force of gravity between two objects acts along:
a) A tangent to their surfaces
b) A line joining their centers
c) A vertical line
d) A horizontal line
Newton’s law of universal gravitation applies to:
a) Only objects on Earth
b) Objects in free fall
c) Objects with mass anywhere in the universe
d) Only objects in space
If the mass of one object is tripled, the gravitational force between two objects will:
a) Increase by a factor of three
b) Decrease by a factor of three
c) Increase by a factor of nine
d) Remain the same
The gravitational force between two objects is:
a) Always constant
b) A result of their electric charges
c) A result of their masses and distance
d) Inversely proportional to the velocity of the objects
The force of gravity on an object near the Earth’s surface depends on:
a) The object’s density
b) The object’s mass
c) The object’s volume
d) The object’s speed
If the distance between two objects is halved, the gravitational force between them becomes:
a) Twice as strong
b) Four times as strong
c) Half as strong
d) The same
The gravitational force between two objects is strongest when:
a) They have equal masses
b) They are very far apart
c) The distance between them is minimized
d) Their velocities are high
The gravitational force between two objects is weakest when:
a) Their masses are large
b) They are far apart
c) The gravitational constant is small
d) Their velocities are high
The gravitational force between two objects of mass
𝑚
1
m
1
and
𝑚
2
m
2
at a distance
𝑟
r from each other is given by:
a)
𝐹
=
𝐺
𝑚
1
𝑚
2
𝑟
F=
r
Gm
1
m
2
b)
𝐹
=
𝐺
𝑚
1
𝑚
2
𝑟
2
F=
r
2
Gm
1
m
2
c)
𝐹
=
𝐺
𝑚
1
𝑚
2
𝑟
F=Gm
1
m
2
r
d)
𝐹
=
𝐺
𝑚
1
𝑚
2
𝑟
3
F=
r
3
Gm
1
m
2
𝐹
=
𝐺
𝑚
1
𝑚
2
𝑟
2
F=
r
2
Gm
1
m
2
The gravitational force is weakest in:
a) A vacuum
b) The Earth’s core
c) The deep space
d) The surface of the Earth
The gravitational constant (G) is measured in:
a) N·kg²/m²
b) N·m²/kg²
c) kg·m²/N
d) N·m²/kg
Gravitational force between two objects is:
a) Always attractive and never repulsive
b) Always repulsive and never attractive
c) Attractive only at large distances
d) Repulsive only at short distances
The force between two objects is proportional to:
a) The sum of their masses
b) The difference between their masses
c) The product of their masses
d) The ratio of their masses
If the mass of the Earth were doubled, the gravitational force between the Earth and an object on its surface would:
a) Remain the same
b) Double
c) Triple
d) Increase four times
Gravitational force is a central force, meaning it acts:
a) In the direction of motion
b) Towards the center of the mass
c) Perpendicular to the surface of the object
d) Away from the center of the mass
