Romanian 9th Grade Physics

Isaac Newton

Isaac Newton

Isaac Newton developed the three laws of motion and the law of universal gravitation. His work forms the basis of classical mechanics studied in 9th grade physics.

Albert Einstein

Albert Einstein

Albert Einstein created the theory of relativity and introduced the famous equation E = mc², showing the relationship between mass and energy.

Galileo Galilei

Galileo Galilei

Galileo Galilei made important discoveries in astronomy and physics. He improved the telescope and studied motion and gravity.