Gravity Passage and Questions

Who was the first person to mathematically describe the force of gravity?

• Galileo Galilei

• Albert Einstein

• Nikola Tesla

• Isaac Newton

What is the name of Isaac Newton's theory of gravity?

• Newton's Law of Thermodynamics

• Newton's Law of Motion

• Newton's Law of Universal Gravitation

• Newton's Theory of Relativity

In which year did Newton publish the Philosophiae Naturalis Principia Mathematica?

• 1605

• 1823

• 1687

• 1750

What determines the amount of gravity an object has?

• Color of the object

• Size of the object

• Temperature of the object

• Shape of the object

What is the weight of a person actually a measure of?

• Amount of sunlight on the person

• Amount of water in the person's body

• Amount of force gravity has on the person

• Amount of air around the person

How much would a person weighing 100 pounds on Earth weigh on planet Mars?

• 25 pounds

• 38 pounds

• 50 pounds

• 75 pounds

What is the equivalence principle in relation to gravity?

• Objects of different masses fall at different speeds

• Objects of the same mass do not fall

• Objects of different masses fall at the same speed

• Objects of the same mass fall at different speeds

What causes the ocean tides on Earth?

• Gravitational pull of the Sun

• Gravitational pull of the Earth

• Gravitational pull of the Moon

• Gravitational pull of the planets