3935642
Description
Mind Map by Dani Southall, updated more than 1 year ago
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Created by Dani Southall
about 9 years ago
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b) Movement and position
- How to plot a distance time graph
- Time always along
the bottom (t)
- Displacement up
the side (m/km) (d)
- GRADIENT = VELOCITY
- Distance/time=V
- Distance/time=V
- Time always along
the bottom (t)
- Average speed = Distance moved/Tiem taken
- Experiment to investigate the motion of everyday objects
- Examples: Ball rolling down tilted board. Test for how far it rolled in how many
seconds.
- Do twice and find a mean
- Do twice and find a mean
- Examples: Ball rolling down tilted board. Test for how far it rolled in how many
seconds.
- Acceleration = Change in velocity/Time taken
- a = (v - u)/t
- change in velocity = final velocity - original velocity
- a = (v - u)/t
- How to plot velocity time graphs
- Time is always along the
bottom (t)
- Speed up the side (m/s) (v)
- GRADIENT = ACCELERATION
- Acceleration from the gradient
- Example (vertical axis) 20m/s & (horizontal axis) 5 seconds.
SO acceleration = 20/5 = 4m/s2 (don't forget the squared)
- Example (vertical axis) 20m/s & (horizontal axis) 5 seconds.
SO acceleration = 20/5 = 4m/s2 (don't forget the squared)
- Acceleration from the gradient
- AREA = DISTANCE TRAVELLED
- v * t = d
- v * t = d
- Time is always along the
bottom (t)
- Units - kg, m, m/s, m/s2, N,s, N/kg, kgm/s
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