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5th Motion FK1
Motion FK1
Question | Answer |
---|---|
Position | an object’s place or location |
Speed | a measure of the distance an object moves in a given amount of time |
Velocity | an object’s speed in a particular direction |
Acceleration | a change in motion caused by unbalanced forces or a change in velocity |
Momentum | a measure of how hard it is to slow down or stop an object |
Inertia | the property of matter that keeps it moving in a straight line or keeps it at rest |
How many Laws of Motion? | 3 laws of motion |
1st Law of Motion | An object at rest will remain at rest, and an object in motion will continue moving in a straight line at a constant speed until an outside force acts on it. |
2nd Law of Motion | An object’s acceleration depends on the size and direction of the force acting on it and on the mass of the object. |
3rd Law of Motion | For every action, there is an equal and opposite reaction. |
Action Force | the first force in the third law of motion |
Reaction Force | the force that pushes or pulls back in the third law of motion |
Orbit | the path one body in space takes as it revolves around another body; such as that of Earth as it revolves around the sun |
Law of Universal Gravitation | law that states that all objects in the universe are attracted to all other objects |