Speed Flashcards
Speed units
M/S
Speed equation
S= D over T
Make sure to convert what
units to metres? seconds to kilometres
How is stramlining useful
reduces air resistence and increases speed for object of go faster
how can you streamline something
making a shape pointier, or making shapes smooth
example of streamlining
tight clothes on cuclists and pointed nose on fighter jet
Pressure equation
P= F over A
If a weight is spread over a larger area, what happens to the pressure
it becomes lighter
if a weight i spread over a smaller area, what happens to the pressure
it is higher
What happens to the presssure of liquids the deeper you go
it increases
Why does a dam have to be thicker at the bottom then the top
because the pressure is higher at the bottom of the water
What do distance and time graphs show you
the jounrey
what does a steeper line in a time / distance graph tell you
more acceleration
What do horizontal lines tell you
staitonary
