Grade 7 Science - Physics: Home

Without the science of physics and the work of physicists, our modern ways of living would not exist. Instead of having brilliant, steady electric light, we would have to read by the light of candles, oil lamps, or at best, flickering gaslight. We might have buildings several stories high, but there could be no hope of erecting an Empire State Building. We could not possibly bridge the Hudson River or the Golden Gate much less build a jet plane, use a cell phone, or watch a television show. The personal computer would be unimaginable.

All other natural sciences depend upon physics for the foundations of their knowledge. Physics holds this key position because it is concerned with the most fundamental aspects of matter and energy and how they interact to make the physical universe work. For example, modern physics has discovered how atoms are made up of smaller particles. It has also revealed how these particles interact to join atoms into molecules and larger masses of matter.

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Citation: "Physics." Britannica School, Encyclopædia Britannica, 17 May. 2011. school.eb.com/levels/middle/article/physics/276413. Accessed 28 Jan. 2019.

Image by Chris Potter. 3D Newtons Cradle from https://www.flickr.com/photos/86530412@N02/7984171587.