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SFS sc final
stack 2
| Question | Answer |
|---|---|
| energy stored in chemical bonds between atoms | chemical energy |
| energy of hot objects | thermal energy |
| energy of opposition potential | potential energy |
| energy of motion | kinetic energy |
| In what direction does an object accelerate? | in the direction of the force |
| How does friction affect moving objects? | slows it down |
| mass x acceleration: work examples from your notes | word problems |
| actions and reactions (3rd law) | pair forces |
| What does friction covert energy of motion into? | thermal energy |
| What keeps a satellite in orbit around the earth? | force of gravity |
| the greater the mass of an object..... | the more inertia the object has |
| the law of inertia... | newton's first law |
| the friction from air molecules hitting on object moves through the air | air resistance |
| statement that describes events or relationships that exist in nature | law |
| unbalanced force can keep an object moving in a circle | circular motion |
| a force between surfaces that resists the movement of one surface past another surface | friction |
| a push or pull | force |
| list newton's 3 law of motion | 1 an object at rest stays at rest unless and unbalanced force acts on it Examples: a book left on the table overnight is there when you return a soccer ball continues to roll until it hits something the clothes you left on the floor are still there w |
| newton's laws of motion | force = mass x acceleration a baseball hit with a bat flies farther than a bowling ball hit with a bat |
| newton's laws of motion | for every equal and opposite action there is an equal and opposite reaction a balloon flies forward when air quickly escapes from it |
| galileo | Italian scientist showed that falling objects with different masses have the same acceleration |
| If you are not strapped into some amusement rides, how would you fly off? | fly off in a straight line |
| at the top of a hill on a roller coaster, what does your inertia do to your body? | keeps you there |