Flashcards
Physics
Cards in this deck (17)
- 1Motion is relativeEverything is moving even things that appear to be at rest
Moving relative to the sun and stars - 2SpeedSpeed = Distance.
______________
Time
M/s - 3AccelerationRate of change in velocity over time
Vf-Vi
_______
T
a=m/s^2 - 4AccelerationOccurs when
•an objects speeds up or slows down (speed changes)
•when an objects direction changes
•one of the following ^ or both
•a car moving in a curve path is accelerating ( direction is changing) - 5VelocityLike speed but direction is added (north-west-east-south)
Velocity =m/s
•Average velocity =vi+vf / 2 - 6Finding d in an incline plane (how far)d= 1/2 •a•t^2
- 7Finding d is a free fall motionFree Fall: only for acting on a falling object is g
d=1/2 • g• t^2 - 8Acceleration of a straight lineConstant v = 0 a
- 9Instantaneous speedSpeed in an instant
In that particular moment
Speedometer - 10Average speedAvg. speed =Total distance/total time
- 11VelocityWhen a ball is thrown upward its velocity is decreasing.. It is decelerating
- 12VelocityWhen an object is thrown downwards its velocity is increasing it is accelerating
- 13VelocityIncline plane (how fast?) v=at
Free fall (how fast?)
v = gt - 14How long will it take (jumping)t = square root of 2d / g
- 15Linear motionMotion in a straight line
- 16Label1. _________ object at rest
2./ object moving with a constant speed
3. ) curve up object is accelerating - 17AccelerationIf an object moves with constant ' a '
Its velocity must be constant with change by the same amount each second
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- Flashcards on Physics , created by Jude Ashoor on 10/05/2016.
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- Jude Ashoor
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