Gravity - Calculation Questions

According to Newton's Law of Universal Gravitation, the force between two objects is directly proportional to the product of their masses and inversely proportional to what?

• The square of the distance between their centers

• The sum of their masses

• The distance between their surfaces

• The gravitational constant.

Fill in the blank: Near the Earth's surface, the acceleration due to gravity is approximately ____ m/s².

• 9.8

• 8.9

• 10.2

• 7.5

What is the formula for calculating weight?

• W = m + g

• W = m / g

• W = m × g

• W = g / m

In the example problem, what is the weight of a 50 kg concrete block on Earth?

• 450 N

• 490 N

• 500 N

• 550 N

Fill in the blank: Weight is calculated as mass times acceleration due to _____.

• speed

• gravity

• force

• distance

Fill in the blank: The force of gravity acting on an object's mass is known as _____.

• weight

• mass

• velocity

• acceleration

Fill in the blank: The formula F = G × (m1 × m2) / r² is used to calculate _____.

• gravitational force

• weight

• acceleration

• velocity

What is the approximate value of acceleration due to gravity on Earth?

• 8.9 m/s²

• 9.8 m/s²

• 10.5 m/s²

• 11.2 m/s²

Fill in the blank: The gravitational force is inversely proportional to the square of the _____.

• distance

• mass

• velocity

• time

What is the relationship between mass and weight?

• Directly proportional

• Inversely proportional

• No relationship

• Exponentially proportional