Across
- 3. Have you ever run a toy car down a ramp? What happens to the car if you lift one end of the ramp higher? The car speeds up, or ______________. When any moving object goes faster and faster, it is ___________. You can _____________ a bicycle by make it go faster.
- 9. The attractive or repulsive force between any two charged objects
- 10. Stretch a rubber band. Notice how it’s ready to spring back. You’ve added ______________ to it. ____________ is energy that is stored and ready to go. This energy might do something. But it isn’t doing anything yet. Once you let go, you release that ________________. If you lift a soccer ball to the top of a playground slide, it has ______________ to roll down the slide.
- 11. The abillity to do work or cause change; the ability to move an object some distance
- 12. A force that exists between any two objects that have mass
- 13. _____________(384 – 322 BC) was a renowned ancient Greek philosopher who greatly influenced the world of philosophy, science, and logic.
Down
- 1. The force of attraction between all masses in the unaverse
- 2. _______ moves things. the downward ________ of hot gas pushes the rocket up through the atmosphere
- 4. an area of energy such as magnetic energy that surrounds an object or place
- 5. Have you ever noticed how movers load heavy objects into trucks? They use ramps, or ______________. An _____________ is a slope that makes it easier to move objects. It takes less effort to push an object up a slope, rather than lifting it straight up from the ground
- 6. ___________, in full Galileo Galilei, (born February 15, 1564, Pisa [Italy]—died January 8, 1642, Arcetri, near Florence), Italian natural philosopher, astronomer, and mathematician who made fundamental contributions to the sciences of motion, astronomy, and strength of materials and to the development of the scientific method. His formulation of (circular) inertia, the law of falling bodies, and parabolic trajectories marked the beginning of a fundamental change in the study of motion. His insistence that the book of nature was written in the language of mathematics changed natural philosophy from a verbal, qualitative account to a mathematical one in which experimentation became a recognized method for discovering the facts of nature. Finally, his discoveries with the telescope revolutionized astronomy and paved the way for the acceptance of the Copernican heliocentric system, but his advocacy of that system eventually resulted in an Inquisition process against him.
- 7. You hear the water in a river rushing over the rocks. Than, you can see the rapids in the river through the trees as you walk closer. You are observing the ___________ or motion of the river. Cars traveling on the highway, airplanes in the sky and anything else that is moving has ___________
- 8. When a football moves over a surface, it becomes slower and slower till it finally comes to rest. This is because of __________ between the ball and the grass. This __________ works against the motion of the ball.
- 10. Any object thrown into space upon which the only acting force is gravity.