Quiz about Law of Gravitational Force

Question 1

Why do we have a stronger gravitational attraction with Earth than the Sun?

Accepted Answer

we are closer to center of Earth

Answer

the sun has a larger mass

Answer

the Earth has a larger mass

Answer

we are closer to center of sun

Question 2

A force of attraction between objects that is due to their masses.

Accepted Answer

Gravitational Pull

Answer

Force

Answer

Gravity

Answer

Weight

Question 3

What is the measure of force of gravity on an object?

Accepted Answer

Weight

Answer

Shape

Answer

Height

Answer

Gravity

Question 4

pulls objects toward the center of Earth.

Accepted Answer

Gravity

Answer

Mass

Answer

Weight

Answer

Resistance

Question 5

______ wrote the universal law of gravity.

Accepted Answer

Isaac Newton

Answer

Galileo

Answer

Henry Cavendish

Answer

Thomas Edison

Question 6

Gravity causes all objects to accelerate toward the ______ at the same rate.

Accepted Answer

Earth

Answer

Moon

Answer

Sun

Answer

ocean

Question 7

The farther apart two objects are, the _______ the gravitational force.

Accepted Answer

weaker

Answer

stronger

Answer

less stable

Answer

more stable

Question 8

What is the formula for the gravitational force between two masses?

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

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

Question 9

Which of the following factors does NOT affect the gravitational force between two objects?

Accepted Answer

Shape of the objects

Answer

Mass of the objects

Answer

Distance between the objects

Answer

Gravitational constant

Question 10

If the distance between two objects is doubled, how does the gravitational force between them change?

Accepted Answer

It becomes four times weaker

Answer

It becomes four times stronger

Answer

It becomes twice as strong

Answer

It becomes twice as weak

Question 11

What is the value of the gravitational constant (G) in the universal law of gravitation?

Accepted Answer

$$6.674 imes 10^{-11} \, ext{N m}^2/ ext{kg}^2$$

Answer

$$9.8 \, ext{m/s}^2$$

Answer

$$3.00 imes 10^8 \, ext{m/s}$$

Answer

$$1.602 imes 10^{-19} \, ext{C}$$

Question 12

Which scientist is credited with formulating the Law of Universal Gravitation?

Accepted Answer

Isaac Newton

Answer

Albert Einstein

Answer

Galileo Galilei

Answer

Niels Bohr

Question 13

How does the gravitational force between two objects change if one of the object's mass is tripled?

Accepted Answer

It becomes three times stronger

Answer

It becomes three times weaker

Answer

It remains the same

Answer

It becomes nine times stronger

Question 14

In a vacuum, how does the gravitational force between two objects compare to the force in air?

Accepted Answer

The same in both

Answer

Stronger in a vacuum

Answer

Weaker in a vacuum

Answer

Depends on the temperature

Question 15

Which of the following best describes the gravitational force?

Accepted Answer

It acts at a distance

Answer

It is a repulsive force

Answer

It acts only on large objects

Answer

It requires contact between objects

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