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| Questão | Responda |
| physics is a type of __________ science | physical |
| physics | study of matter and energy and how they interact with each other |
| forms of energy | motion,light,electricity,radiation,gravity, magnetism,and heat |
| how is physics such a broad field of science | it studies the smallest particles within particles the largest things such as rte expansion of space and everything in the middle |
| fact | a statement established by an experiment or observation. all facts are true under specific conditions. some facts may be false when re-tested with better instruments |
| belief | not scientifically supported in the some way facts,laws,and hypothesis are.cant be tested using the scientific method |
| hypothesis | can be tested by a direct experiment or observation. will be supported or rejected and can led to a new hypothesis |
| law V.S. theory | law-logical relationship between 2 or more things based on a variety of facts theory-best possible exclamation for patterns we observe in nature tested over and over to determine their accuracy |
| every thing in the universe ________. motion is a part of_________ mechanics over the years scientists have discovered rues or laws | moves,classical |
| the physics of motion is all about | force |
| force equation acceleration mass | F=MA M/S2 Kg |
| speed | describes how something is moving |
| velocity | described how fast something is moving with a direction |
| acceleration | describes increase or decrease in velocity |
| force is measured in | newtons |
| foces are vectors meaning they give a number value and a | direction |
| F= M= A= | F=MA M=F/A A=F/M |
| isaac newton developed | laws of physics and calculus at the same time |
| enertia | an object will stay at rest or in motion until another force acts upon it |
| action | for every action there is an equal and opposite reaction |
| if u apply a force to an object u might change its | energy |
| energy is measured in | jouls |
| kinetic energy | is moving transferred from potential to kinetic |
| potential energy | may or may not be moving stored energy have PE due to height and gravity |
| friction | a force that holds back the movement of sliding object opposite direction only with solid gas or liquid called resistance |
| force of attraction | gravitational forces are forces f attraction the earth produces the same acceleration on every object |
| work | is done when a force is applied t an object and it moves |
| work force distance | w=fd J or mn m n |
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