Quiz about Newton's Law of Gravitation

Question 1

Newton said that any two masses will...

Accepted Answer

attract each other.

Answer

combine into a larger mass.

Answer

create gravitational fields.

Answer

push each other apart.

Question 2

The value of Universal Gravitational constant is

Accepted Answer

6.673X10^-11 Nm²kg^-2

Answer

6.673X10^-11 Nm^-2kg²

Answer

6.673X10^-11 Nm²kg²

Answer

6.673 x10^-11N m^-2kg^-2

Question 3

Which of the following Laws of Kepler did Newton use to calculate the force of attraction?

Accepted Answer

The cube pf the mean distance of a planet from the sun is proportional to the square of its orbital period.

Answer

Sun is situated at the centre of the orbit

Answer

The orbit of the planet is ellipse

Answer

The line joining the planet and the sun sweeps equal areas in equal interval of time.

Question 4

Force of gravity is directly proportional to

Accepted Answer

Mass

Answer

Weight

Answer

Distance

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Time

Question 5

What is the force that causes objects to fall to Earth?

Accepted Answer

Gravity

Answer

Air resistance

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Water resistance

Answer

Pressure

Question 6

What does Newton's Law of Gravitation state about the force between two masses?

Accepted Answer

It is inversely proportional to the square of the distance between them.

Answer

It is directly proportional to the square of the distance between them.

Answer

It is inversely proportional to the product of their masses.

Answer

It is directly proportional to the distance between them.

Question 7

Which of the following is the formula for Newton's Law of Gravitation?

Accepted Answer

$$F = G \frac{m_1 m_2}{r^2}$$

Answer

$$F = G \frac{m_1 + m_2}{r^2}$$

Answer

$$F = G \frac{m_1 m_2}{r}$$

Answer

$$F = G \frac{m_1 - m_2}{r^2}$$

Question 8

What is the role of the gravitational constant (G) in Newton's Law of Gravitation?

Accepted Answer

It determines the strength of the gravitational force.

Answer

It measures the mass of the objects involved.

Answer

It calculates the distance between two objects.

Answer

It defines the speed of light in a vacuum.

Question 9

If the distance between two objects is doubled, how does the gravitational force between them change according to Newton's Law?

Accepted Answer

It becomes one-fourth as strong.

Answer

It becomes four times stronger.

Answer

It becomes half as strong.

Answer

It remains the same.

Question 10

Which experiment can be used to measure the gravitational constant (G)?

Accepted Answer

Cavendish experiment

Answer

Millikan oil drop experiment

Answer

Rutherford gold foil experiment

Answer

Young's double-slit experiment

Question 11

How does Newton's Law of Gravitation explain the orbits of planets around the sun?

Accepted Answer

Planets are attracted to the sun by a force that decreases with distance.

Answer

Planets are repelled by the sun, keeping them in orbit.

Answer

Planets move in straight lines due to gravitational pull.

Answer

Planets are stationary due to gravitational balance.

Question 12

What real-world application relies on Newton's Law of Gravitation?

Accepted Answer

Predicting satellite trajectories

Answer

Calculating chemical reactions

Answer

Designing electrical circuits

Answer

Measuring sound waves

Question 13

How does the mass of an object affect the gravitational force it experiences?

Accepted Answer

The greater the mass, the greater the gravitational force.

Answer

The greater the mass, the lesser the gravitational force.

Answer

Mass does not affect gravitational force.

Answer

Mass affects only the direction of gravitational force.

Question 14

What happens to the gravitational force if the mass of one object is tripled?

Accepted Answer

The gravitational force triples.

Answer

The gravitational force is reduced to one-third.

Answer

The gravitational force remains unchanged.

Answer

The gravitational force doubles.

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