Theory of relativity

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/theory-of-relativity

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. Who discovered Theory of relativity?Special Relativity in 1905; General Relativity in 1915
2. What is the discoverer?Albert Einstein
3. What is the core principle (general)?Gravity is the curvature of spacetime caused by mass and energy
4. What is Einstein's Special Theory of Relativity?It says the laws of physics are the same for all non‑moving observers and that light always travels at the same speed, no matter how fast you move. Because of this, time can slow down and moving objects can look shorter.
5. What is Einstein's General Theory of Relativity?It explains gravity as the bending of space and time around heavy objects. Big things like planets and stars warp the “blanket” of spacetime, and other objects follow those curves, which we feel as gravity.

Inertial Frame of Reference: A frame of reference where an object at rest stays at rest and an object in motion continues in motion at a constant velocity.
Spacetime Continuum: A unified four-dimensional fabric that combines the three dimensions of space and the dimension of time.
Time Dilation: The phenomenon where time passes at different rates for observers in different frames of reference, particularly at high speeds or in strong gravitational fields.
Gravitational Redshift: The decrease in frequency and increase in wavelength of light as it travels out of a strong gravitational field.