Karteikarten
Motion
Karten in diesem Stapel (30)
- 1Define Vector QuantityA quantity that has magnitude (size) and direction
- 2Define Scalar quantityA quantity that has only magnitude (size)
- 3Give examples of vector quantitiesforce, velocity, displacement, weight, acceleration, momentum
- 4Give examples of scalar quantitiesspeed, distance, mass, energy, temperature, time
- 5Explain the difference between scalar and vector quantities.scalar quantities have only magnitude whereas vector have direction and magnitude
- 6Why is distance scalar?because it only has size - it doesn't have a direction
- 7Define displacementthe distance and direction in a straight line from an object's starting point to its finishing point
- 8What is the equation for distance?distance = speed x time
- 9What is the calculation for speed?speed = distance ÷ time
- 10What is distance measured in?metres (m)
- 11Define accelerationhow quickly an object is speeding up
- 12How is acceleration different to velocity and speed?acceleration is the change in velocity in a given time.
- 13What is the equation for acceleration?acceleration = initial velocity - final velocity ÷ time
- 14Define decelerationan object slowing down, so the change in velocity is negative
- 15Define uniform accelerationconstant acceleration - acceleration due to gravity is uniform to free fall
- 16The equation for uniform accelerationfinal velocity(s) - initial velocity(s) = 2 x acceleration x distance
- 17What is - a graph that tells you how far something has travelleddistance/time graphs
- 18On a distance/time graph what does the gradient tell youthe speed of the object
- 19On a distance/time graph what does the flat lines tell youthat the object is at rest
- 20On a distance/time graph what does a steeper/curve getting steeper meanthat it is getting faster/ increasing gradient
- 21How do you find out the speed from a distance/time graphthe gradient (change in vertical ÷ change in horizontal)
- 22What does a velocity/time graph show youhow much an objects velocity has changed over a certain length of time
- 23On a velocity/time graph what does the gradient showacceleration
- 24On a velocity/time graph what does flat lines showa constant speed
- 25On a velocity/time graph what does a steeper/uphill sections graph show youacceleration
- 26On a velocity/time graph what does a steeper/downhill sections graph show youdeceleration
- 27On a velocity/time graph what does a curve show youa change in acceleration
- 28The area under a velocity/time graph shows you.......distance travelled
- 29What is Newtons first law?if the overall force on a object at rest is 0 then the object will remain stationary. If the overall force on a moving object is 0 it will carry on moving at the same velocity.
- 30—
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- GCSE Physics Karteikarten am Motion , erstellt von jadah Jacobs am 20/11/2017.
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- jadah Jacobs
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