Flashcards
Basics
Flashcards do conjunto (12)
- 1What are the 2 assumptions with motion questions?The object is a particle
We allow instantaneous velocity changes - 2How do we use the conversion calculator function?Shift 8
- 3How do we work out average velocity?Final displacement / time
- 4How do we work out average speed?Total distance / time
- 5What is a vector quantity?A quantity with both magnitude and diretion
- 6What is a scalar quantity?A quantity with only magnitude
- 7Velocity time graph:
- 8What are the times on he graph where the object is stationary?t=0 , t=25
- 9At what point is the object travelling back towards the start point?t=25
- 10The gradient of a velocity time graph gives....Acceleration
- 11The area under a velocity time graph gives....Displacement
- 12Find the acceleration and displacement at point A,B,C,D (labelled on the graph)A: 1/5ms-2 , 10m
B: 0ms-2 , 10m
C: -1/5ms-2 , 10m
D: -1/5ms-2 , -5/2m