Gravity

Total Questions: 18

1 - گریوی ٹیشن کا قانون ---- سے مطابقت رکھتا ہے؟

A ) نیوٹن کا پہلا قانون
B ) نیوٹن کا دوسراقانون
C ) نیوٹن کا تیسرا قانون ✅
D ) کولمب کا قانون

2 - The weight of an object at the center of the earth of radius R is ----:

A ) Weightless ✅
B ) Same
C ) Rises a little
D ) None of these

3 - If the air resistance is zero all objects regardless of their masses fall with:

A ) Same Velocity
B ) Same Acceleration ✅
C ) Different acceleration
D ) None of these

4 - When the object moves with the speed of light its mass would be------:

A ) Double
B ) Infinity ✅
C ) Zero
D ) Remain same

5 - Earth attracts object due to its------:

A ) Gravity ✅
B ) Energy
C ) Weight
D ) Mass

6 - Which of the following is true about the gravitational force?

A ) It is not dependent on distance
B ) It is stronger when objects are farther
C ) It is stronger when objects are closer ✅
D ) It is only effective on large objects

7 - What happens to the acceleration of an object in free fall if the air resistance is negligible?

A ) It remains constant. ✅
B ) It increases.
C ) It decreases.
D ) It fluctuates.

8 - Gravitational force is a type of ---:

A ) Field force ✅
B ) Contact Force
C ) Electromagnetic force
D ) Nuclear force

9 - What happens to the mass of an object when it travels at the speed of light?

A ) It becomes Infinite ✅
B ) It remains constant
C ) It decreases
D ) It doubles

10 - If the Earth's mass were doubled the gravitational force on an object at its surface would -----:

A ) Remain same
B ) Become four times Earth's gravity
C ) Become half
D ) Double ✅

11 - What is gravitational pull of Moon compared to the Earth?

A ) One- sixth of Earth's gravity ✅
B ) Half of Earth's gravity
C ) Same as Earth
D ) Double Earth's gravity

12 - What happens to the force of gravity between two objects when the distance between them is halved?

A ) The force becomes quadrilateral ✅
B ) The force becomes one-fourth
C ) The force remains the same
D ) The force doubles

13 - Gravitational force is responsible for------:

A ) The weight of an object
B ) The motion of planets
C ) Both A and B ✅
D ) None of these

14 - Which of the following affects the gravitational force between two objects?

A ) Their temperature
B ) Their weight
C ) Their color
D ) Their masses and distance ✅

15 - If a ball is thrown upward the direction of gravitational force is -------:

A ) Downward ✅
B ) Upward
C ) In the direction of motion
D ) It varies

16 - What is the relationship between gravitational force and mass?

A ) Inversely proportional
B ) Directly proportional ✅
C ) Independent
D ) None of these

17 - When a person stands on a scale at the Earth's surface they are measuring:

A ) Their weight ✅
B ) Their mass
C ) Their density
D ) None of these

18 - Which of the following is property of gravitational force?

A ) It acts only on living things
B ) It decrease with distance ✅
C ) It is Strongest on the moon
D ) It only affects large objects