Gravity Introduction

Which of the follow do not have gravity?

• Air

• Water

• the sun

• They all have gravity

Who calculated the Universal Gravitational Constant (G)?

• Canvendish

• Newton

• Plato

• Galileo

Who discovered the Law of Universal Gravitation?

• Canvendish

• Newton

• Plato

• Galileo

Who discovered that the Earth was not the center of the universe?

• Canvendish

• Newton

• Plato

• Galileo

Who taught theories about gravity without performing any experiments?

• Canvendish

• Newton

• Plato

• Galileo

Why is math important in Physics?

• to describe how objects react to one another

• because it makes it harder

• To make predictions

• because Newton said so!

In which of these frames of reference does the Law of Universal Gravitation not apply?

• on the atomic level

• very short distances with objects of small mass

• in a black hole

• ALL OF THESE! WE KNOW NOTHING!!!!!!!

Which of the following is an absolute?

• velocity

• time

• weight

• mass

Which of the following is a difference between mass and weight?

• weight is the force of gravity

• mass is the force of gravity

• weight is an absolute

• mass is a measure of inertia

If I increase the mass of an object by 2 times, what will happen do the gravity?

• the gravity will double

• the gravity will quadruple

• the gravity will be cut in half

• nothing