CK-12 Physical Science Concepts - For Middle School

http://www.ck12.org Chapter 4. Motion and Forces

FIGURE 4.30

This diagram shows how Earth’s mass

bends the “fabric” of space and time

around it, causing smaller objects such as

satellites to move toward Earth.

Explore More

Watch the video about Einstein’s “masterpiece” at the following URL. Then decide whether the statements below
about Einstein and his work are true or false.

http://www.awesomestories.com/assets/general-theory-of-relativity-einsteins-masterpiece-1

1. Einstein’s theory of general relativity is considered his greatest triumph.


2. Einstein was award a Nobel Prize for his theory of general relativity.


3. Einstein’s ideas about gravity are just a theory and have no practical use.


4. Einstein’s thought that all universal laws could be expressed in mathematics.


5. General relativity is the basis of our understanding of the universe today.


6. Einstein did not believe in God because of his scientific theories.

Review

1. How did Newton describe gravity?


2. How did Einstein explain gravity?


3. Why is Einstein’s theory of gravity widely accepted today?