Vector and Scalar Test
If the acceleration is positive but the velocity is negative, you are ____.
slowing down
Examples of Scalars
speed, mass, distance, time, volume, density etc.
If the acceleration and velocity are negative, you are ______.
speeding up
If the acceleration and velocity is positive, you are _______.
speeding up
How do you attach the resultant vector?
tail on start ; tip on end
Calculate average speed
total distance/total time
In a velocity vs. time graph, curved lines=_____.
uneven rate of acceleration
Examples of Vectors
Velocity, weight, acceleration, displacement, forces etc.
In a velocity vs. time graph, the 0 mark =________.
0 velocity (no motion)
1 km = ____ mi
0.621 miles
1 m=___cm
100 centimeters
1 km=___m
1000 meters
Scalar
A quantity that has only magnitude
Calculate change in velocity
Acceleration multiplied by time
Calculate velocity
Displacement/time
What is the area under a speed/velocity vs. time graph?
Distance
Calculate time
Distance/speed
Vector
Has BOTH magnitude and direction
What are the two POSITIVE directions?
North and East
What are the two NEGATIVE directions?
South and West
Calculate distance
Speed multiplied by time
Calculate time in an acceleration problem
V(f) - V(i)/a
Calculate acceleration
V(f) - V(i)/t
Calculate final velocity
V(i) + (a)(t)
In a position vs. time graph, the 0 line = _____.
a reference point
In a position vs. time graph, curved lines =______.
acceleration
In a velocity vs. time graph, slope =_____.
acceleration
In a velocity vs. time graph, straight sloped lines =_____.
constant acceleration
In a position vs. time graph, straight angled lines =______.
constant velocity
In a velocity vs. time graph, straight horizontal lines =______.
constant velocity
Velocity has ____ and ____.
direction and magnitude
Displacement will NEVER be greater than _____.
distance
Calculate speed
distance/time
If the acceleration is negative but the velocity is positive, you are _____.
slowing down
All vectors have _____ and _____.
magnitude and direction
In a position vs. time graph, a flat horizontal line =_____.
no motion
A vector can be added in any _____.
order (as long as it's tip to tail)
In a position vs. time graph, slope = _____.
velocity