Q. What is the gravitational force between two 10 kg masses separated by a distance of 2 m?
A.
0.25 N
B.
5 N
C.
10 N
D.
20 N
Show solution
Solution
Using Newton's law of gravitation: F = G(m1*m2)/r² = (6.674 × 10⁻¹¹)(10*10)/(2²) = 0.25 N.
Correct Answer:
A
— 0.25 N
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Q. What is the gravitational force between two 5 kg masses separated by 2 meters? (G = 6.67 x 10^-11 N m²/kg²)
A.
8.34 x 10^-11 N
B.
1.67 x 10^-10 N
C.
1.67 x 10^-11 N
D.
3.34 x 10^-11 N
Show solution
Solution
Using F = G(m1*m2)/r², F = (6.67 x 10^-11)(5)(5)/(2²) = 1.67 x 10^-10 N.
Correct Answer:
B
— 1.67 x 10^-10 N
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Q. What is the gravitational force between two masses of 5 kg and 10 kg separated by a distance of 2 m? (G = 6.67 x 10^-11 N m²/kg²)
A.
1.67 x 10^-10 N
B.
1.25 x 10^-10 N
C.
1.00 x 10^-10 N
D.
2.00 x 10^-10 N
Show solution
Solution
F = G * (m1 * m2) / r² = (6.67 x 10^-11) * (5 * 10) / (2²) = 1.67 x 10^-10 N
Correct Answer:
A
— 1.67 x 10^-10 N
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Q. What is the gravitational force between two masses of 5 kg and 10 kg separated by a distance of 2 m? (G = 6.67 × 10^-11 N m²/kg²)
A.
1.67 × 10^-10 N
B.
1.67 × 10^-9 N
C.
1.67 × 10^-8 N
D.
1.67 × 10^-7 N
Show solution
Solution
F = G * (m1 * m2) / r² = (6.67 × 10^-11) * (5 * 10) / (2²) = 1.67 × 10^-10 N
Correct Answer:
A
— 1.67 × 10^-10 N
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Q. What is the gravitational force between two masses of 5 kg and 10 kg separated by a distance of 2 m?
A.
1.67 x 10^-10 N
B.
1.25 x 10^-9 N
C.
1.25 x 10^-10 N
D.
2.5 x 10^-10 N
Show solution
Solution
Using Newton's law of gravitation, F = G * (m1 * m2) / r^2, where G = 6.67 x 10^-11 N m^2/kg^2, m1 = 5 kg, m2 = 10 kg, and r = 2 m. F = (6.67 x 10^-11) * (5 * 10) / (2^2) = 1.25 x 10^-9 N.
Correct Answer:
B
— 1.25 x 10^-9 N
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Q. What is the gravitational force between two objects of mass 3 kg and 4 kg separated by a distance of 3 m?
A.
1.11 x 10^-10 N
B.
1.33 x 10^-10 N
C.
1.67 x 10^-10 N
D.
2.00 x 10^-10 N
Show solution
Solution
Using F = G * (m1 * m2) / r^2, F = (6.67 x 10^-11) * (3 * 4) / (3^2) = 1.33 x 10^-10 N.
Correct Answer:
B
— 1.33 x 10^-10 N
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Q. What is the gravitational force between two objects of mass 5 kg and 10 kg separated by a distance of 2 m? (G = 6.67 × 10^-11 N m²/kg²)
A.
1.67 × 10^-10 N
B.
1.25 × 10^-10 N
C.
1.00 × 10^-10 N
D.
2.00 × 10^-10 N
Show solution
Solution
Using the formula F = G * (m1 * m2) / r², we have F = (6.67 × 10^-11) * (5 * 10) / (2²) = 1.67 × 10^-10 N.
Correct Answer:
A
— 1.67 × 10^-10 N
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Q. What is the gravitational force between two objects of mass m1 and m2 separated by a distance r? (2021)
A.
G * (m1 * m2) / r^2
B.
G * (m1 + m2) / r^2
C.
G * (m1 - m2) / r^2
D.
G * (m1 * m2) * r^2
Show solution
Solution
The gravitational force is given by Newton's law of gravitation: F = G * (m1 * m2) / r^2.
Correct Answer:
A
— G * (m1 * m2) / r^2
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Q. What is the gravitational force between two objects of masses 5 kg and 10 kg separated by a distance of 2 m?
A.
1.67 x 10^-10 N
B.
1.25 x 10^-9 N
C.
1.25 x 10^-10 N
D.
2.50 x 10^-10 N
Show solution
Solution
Using Newton's law of gravitation, F = G * (m1 * m2) / r^2, where G = 6.67 x 10^-11 N m^2/kg^2, m1 = 5 kg, m2 = 10 kg, r = 2 m. F = (6.67 x 10^-11) * (5 * 10) / (2^2) = 1.25 x 10^-9 N.
Correct Answer:
B
— 1.25 x 10^-9 N
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Q. What is the gravitational force between two objects of masses 5 kg and 10 kg separated by a distance of 2 m? (G = 6.67 × 10^-11 N m²/kg²)
A.
1.67 × 10^-10 N
B.
1.67 × 10^-9 N
C.
1.67 × 10^-8 N
D.
1.67 × 10^-7 N
Show solution
Solution
F = G * (m1 * m2) / r² = (6.67 × 10^-11) * (5 * 10) / (2²) = 1.67 × 10^-10 N
Correct Answer:
A
— 1.67 × 10^-10 N
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Q. What is the gravitational force between two objects of masses m1 and m2 separated by a distance r?
A.
F = G * (m1 * m2) / r^2
B.
F = G * (m1 + m2) / r^2
C.
F = G * (m1 * m2) * r^2
D.
F = G * (m1 - m2) / r
Show solution
Solution
The gravitational force is given by Newton's law of gravitation: F = G * (m1 * m2) / r^2.
Correct Answer:
A
— F = G * (m1 * m2) / r^2
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Q. What is the gravitational force between two objects with masses m1 and m2 separated by a distance r?
A.
F = G * (m1 * m2) / r^2
B.
F = G * (m1 + m2) / r^2
C.
F = G * (m1 - m2) / r^2
D.
F = G * (m1 * m2) * r^2
Show solution
Solution
The gravitational force is given by Newton's law of gravitation: F = G * (m1 * m2) / r^2.
Correct Answer:
A
— F = G * (m1 * m2) / r^2
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Q. What is the gravitational force experienced by a 1 kg mass at the surface of the Earth?
A.
9.81 N
B.
1 N
C.
0 N
D.
9.81 kg
Show solution
Solution
The gravitational force on a 1 kg mass at the surface of the Earth is equal to its weight, which is 9.81 N.
Correct Answer:
A
— 9.81 N
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Q. What is the gravitational force experienced by a 10 kg mass at the surface of the Earth?
A.
10 N
B.
98 N
C.
100 N
D.
0 N
Show solution
Solution
The weight (gravitational force) is calculated as F = m * g = 10 kg * 9.8 m/s^2 = 98 N.
Correct Answer:
B
— 98 N
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Q. What is the gravitational potential at a distance 'r' from a mass 'M'?
A.
-GM/r
B.
-GM/r^2
C.
GM/r
D.
GM/r^2
Show solution
Solution
The gravitational potential V at a distance r from a mass M is given by V = -GM/r.
Correct Answer:
A
— -GM/r
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Q. What is the gravitational potential at a distance 'r' from a point mass 'M'?
A.
-GM/r
B.
-GM/r^2
C.
GM/r
D.
GM/r^2
Show solution
Solution
The gravitational potential V at a distance r from a point mass M is given by V = -GM/r.
Correct Answer:
A
— -GM/r
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Q. What is the gravitational potential at a point infinitely far away from a mass?
A.
Zero
B.
Positive
C.
Negative
D.
Undefined
Show solution
Solution
The gravitational potential at a point infinitely far away from a mass is defined to be zero.
Correct Answer:
A
— Zero
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Q. What is the gravitational potential at infinity?
A.
Zero
B.
Positive
C.
Negative
D.
Undefined
Show solution
Solution
The gravitational potential at infinity is defined to be zero.
Correct Answer:
A
— Zero
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Q. What is the gravitational potential energy of a 10 kg mass at a height of 10 m?
A.
100 J
B.
200 J
C.
500 J
D.
1000 J
Show solution
Solution
Gravitational potential energy (PE) is given by PE = mgh. Here, PE = 10 kg * 9.81 m/s² * 10 m = 981 J.
Correct Answer:
D
— 1000 J
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Q. What is the gravitational potential energy of a 10 kg mass at a height of 5 m above the ground?
A.
50 J
B.
100 J
C.
0 J
D.
10 J
Show solution
Solution
The gravitational potential energy is calculated using the formula U = mgh = 10 kg * 9.8 m/s² * 5 m = 490 J.
Correct Answer:
B
— 100 J
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Q. What is the gravitational potential energy of a 10 kg mass at a height of 5 m above the ground? (g = 9.8 m/s²)
A.
490 J
B.
4900 J
C.
98 J
D.
980 J
Show solution
Solution
Gravitational potential energy (U) is given by U = mgh = 10 kg * 9.8 m/s² * 5 m = 490 J.
Correct Answer:
A
— 490 J
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Q. What is the gravitational potential energy of a 10 kg mass at a height of 5 m? (2019)
A.
50 J
B.
100 J
C.
150 J
D.
200 J
Show solution
Solution
Gravitational potential energy (PE) = m * g * h = 10 kg * 9.81 m/s² * 5 m = 490.5 J.
Correct Answer:
B
— 100 J
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Q. What is the gravitational potential energy of a 10 kg object at a height of 10 m?
A.
100 J
B.
200 J
C.
500 J
D.
1000 J
Show solution
Solution
Gravitational potential energy (PE) is given by the formula PE = mgh. Here, PE = 10 kg * 9.8 m/s² * 10 m = 980 J, which rounds to approximately 1000 J.
Correct Answer:
B
— 200 J
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Q. What is the gravitational potential energy of a 10 kg object at a height of 5 m? (g = 9.8 m/s²)
A.
49 J
B.
98 J
C.
245 J
D.
490 J
Show solution
Solution
Gravitational potential energy (PE) is given by PE = mgh. Here, m = 10 kg, g = 9.8 m/s², and h = 5 m. PE = 10 * 9.8 * 5 = 490 J.
Correct Answer:
B
— 98 J
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Q. What is the gravitational potential energy of a 2 kg mass at a height of 10 m above the ground? (g = 9.8 m/s²)
A.
196 J
B.
98 J
C.
20 J
D.
0 J
Show solution
Solution
Gravitational potential energy (U) is calculated as U = mgh = 2 kg * 9.8 m/s² * 10 m = 196 J.
Correct Answer:
A
— 196 J
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Q. What is the gravitational potential energy of a 2 kg mass at a height of 10 m above the ground? (g = 9.8 m/s^2)
A.
196 J
B.
98 J
C.
20 J
D.
0 J
Show solution
Solution
Gravitational potential energy (U) is given by U = mgh = 2 kg * 9.8 m/s^2 * 10 m = 196 J.
Correct Answer:
A
— 196 J
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Q. What is the gravitational potential energy of a 2 kg mass at a height of 10 m above the ground? (Take g = 9.8 m/s²) (2023)
A.
196 J
B.
98 J
C.
20 J
D.
78 J
Show solution
Solution
Gravitational potential energy (U) = mgh = 2 kg * 9.8 m/s² * 10 m = 196 J.
Correct Answer:
A
— 196 J
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Q. What is the gravitational potential energy of a 2 kg mass at a height of 10 m?
A.
20 J
B.
15 J
C.
10 J
D.
5 J
Show solution
Solution
Gravitational potential energy (U) = mgh = 2 kg * 9.8 m/s^2 * 10 m = 196 J.
Correct Answer:
A
— 20 J
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Q. What is the gravitational potential energy of a 2 kg mass at a height of 10 m? (g = 9.8 m/s²)
A.
196 J
B.
98 J
C.
20 J
D.
0 J
Show solution
Solution
U = mgh = 2 * 9.8 * 10 = 196 J.
Correct Answer:
A
— 196 J
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Q. What is the gravitational potential energy of a 2 kg mass at a height of 5 m?
A.
10 J
B.
20 J
C.
30 J
D.
40 J
Show solution
Solution
Using U = mgh, U = 2 kg * 9.8 m/s^2 * 5 m = 98 J.
Correct Answer:
B
— 20 J
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