Symbols and Units
What is the symbol for velocity?
v
If a ball is thrown straight up into the air, what is its velocity at its peak height?
zero
What are the negative compass directions?
South and west
If a position-time graph has a steep slope going up, is the object moving fast, slow, or not moving at all?
fast
What is the unit for velocity?
m/s
When something is falling freely, what is pulling it down?
Gravity
True or false: When solving for distance, direction matters.
False
If a position-time graph has a shallow slope going up, is the object moving fast, slow, or not moving at all?
slow
What do you see in the equation: symbols or units?vf=vi+at
symbols
When something is thrown up into the air, is it speeding up or slowing down?
Slowing down.
True or False: When solving for displacement, direction matters.
True
If a position-time graph has a horizontal line, is the object moving fast, slow, or not moving at all?
What is the symbol for displacement?
delta x
What is the number for the acceleration due to gravity here on Earth?
9.8
If I walked 40m east and then 10m west, what was my distance traveled?
50m
If a velocity-time graph has a steep slope downwards, what is happening to the objects velocity?
It is slowing down
What is the unit for displacement?
m
When something is thrown upwards, what is it's acceleration?
-9.8m/s^2
If I walked 40m east and then 10m west, what was my displacement?
30m east
If a velocity-time graph has a horizontal line, is the object moving or not?
it's still moving (just not accelerating)