If an object is in uniform motion, the dots on a motion diagram_____
are spaced at equal distances apart
Making rough estimates of physical quantities is useful____
to see if the answer to a problem makes phusical tense
The correct SI units for distance and mass are______ and ______
meters and kilograms
If Sam walks 100 m to the right, then 200 m to the left, his net displacement vector points to the ________
left
Velocity vectors point in the _________ direction as displacement vectors
same
The slope at a point on a position-versus-time graph of an object is the object's ________
instantaneous velocity at that point
Is a hockey puck sliding in a straight line at a constant speed an example of uniform motion or non uniform motion?
Uniform Motion
If you throw a ball against the ceiling�so the ball moves upward and then rebounds to move downward�at the instant the ball hits the ceiling, the acceleration is
Negative
If an object is speeding up, its acceleration is_____
can be positive or negative depending on the direction of motion
base fundamental units
meter, kilogram, second
What are the three quantities and units listed
mass, time, and length
A single digital reading of 5.067 grams will have an uncertainty that is _____ g.
0.0005g
Select all of the steps that are necessary to finding uncertainty when multiple readings are taken.
Measure many times
Check for ourliers with histogram
delete ourliers then find average
subtract average from maximum reading
subtract the minimum reading from average
find the largest of differences from the average - uncertainty
The symbol that is used to represent a vector is an _______________ because direction is an important characteristic of vectors.
arrow
What would a motion diagram slowing down to the left look like
points getting closer together the farther left you go
what would a motion diagram moving at a constant speed moving to the right look like?
points are evenly spaced out
What would a motion diagram slowing down to the right look like
points getting closer together the farther right you go
If an object is maintaining a state of motion - constant velocity. What shaped line would it be?
Straight - because it is constant. Does not matter the direction.
if the slope is constant then ________ is constant
velocity
If an object is maintaining its state of motion, what direction is it going?
To maintain the state of motion is to keep a constant velocity (i.e., to have a zero acceleration). This translates into a zero slope on a v-t graph.
True or false, accelerating is only in the positive direction
false
Slowing down is the same thing as?
accelerating in the opposite direction
smallest acceleration = smallest
slope