Newton's Law of Universal Gravitation Quiz

Who was the first person to calculate the circumference of the Earth?

• Eratosthenes

• Isaac Newton

• Albert Einstein

• Henry Cavendish

What did Isaac Newton reportedly observe that led to his formulation of the law of universal gravitation?

• A falling apple

• A swinging pendulum

• A rolling ball

• A rising balloon

What mathematical tool did Newton invent to help formulate his law of universal gravitation?

• Algebra

• Geometry

• Calculus

• Trigonometry

According to Newton's findings, how does the gravitational force between two objects change with distance?

• It fluctuates randomly

• It remains constant

• It decreases with distance

• It increases with distance

Who measured the gravitational constant over 100 years after Newton's publication?

• Albert Einstein

• Galileo Galilei

• Henry Cavendish

• Johannes Kepler

What is the formula for Newton's law of universal gravitation?

• F = G * (m1 * m2) / r^2

• F = m * v^2 / r

• F = ma

• F = k * q1 * q2 / r^2

In Newton's law of universal gravitation, what does the 'G' represent?

• Gravitational force

• Gravitational constant

• Gravitational field

• Gravitational potential

What is the direction of the gravitational force between two masses?

• Perpendicular to the line connecting the centers

• Along the line connecting the centers

• Opposite to the line connecting the centers

• Randomly oriented

In the problem-solving example, what is the gravitational force between two 1 kg objects 1 meter apart?

• 6.67 x 10^-11 N

• 6.67 x 10^11 N

• 6.67 x 10^-1 N

• 6.67 x 10^1 N

Why is the gravitational force considered weak despite its fundamental role in the universe?

• It only acts over short distances

• It only affects certain types of matter

• It requires very large masses to be noticeable

• It is easily counteracted by other forces