Quantities that describe magnitude and also include direction
What is vector quantity?
100
mulitply km by a 1000 and hours 3600
how do you convert km/h to m/s
100
by subtracting the initial velocity from the final velocity.
How is the change in velocity calculated?
100
m/s square
What is acceleration measured in?
100
Quantities that describe magnitude but don't include direction
What is scalar quantity?
200
scalar
What type of quantity is distance?
200
m/s
What is the SI unit for speed?
200
3-
Positive
Negative
Constant
How many and what types of changes in velocity are there?
200
-9.8 m/s square
What is the acceleration due to gravity?
200
a vector quantity that describes a specific point relative to a reference point
What is position?
300
Shows the objects positions at given times and allows us to picture or visualize motion
What does a motion diagram show?
300
D: 20 km/h
What is the average velocity of a car that moved 40 km East and 80 km West in 2 hours?
A: 5 km/h
B: 10 km/h
C: 15 km/h
D: 20 km/h
300
negative
When the car’s speed is decreasing, the car has a what type of acceleration?
300
a=v divided by t
?
what is the formula for finding acceleration?
300
motion in which an object travels equal displacement in equal time intervals
What is uniform motion?
400
B: 19km
If a car moves 12 km North, 19 km East, and 12 km South, what is its displacement?
A: 12 km
B: 19 km
C: 31 km
D: 43 km
400
D: 50 km/h
If car A is at 40 km/h and car B is at 10 km/h in the opposite direction, what is the velocity of the car A relative to the car B?
A: 10 km/h
B: 20 km/h
C: 40 km/h
D: 50 km/h
400
deceleration
Acceleration that is opposite to the direction of motion is?
400
? (2.0 m/s2)(37 s)
? =74 m/s
The train’s change in velocity is 74 m/s forward.
Suppose the bullet train in Japan accelerates from rest at 2.0 m/s square forward for 37 s. What is the velocity of the bullet train at the end of 37 s?
400
a friction like force that opposes the motion of objects that move through the air
What is air resistance?
500
D: 150 km
A car moved 60 km East and 90 km West. What is the distance?
A: 30 km
B: 60 km
C: 90 km
D: 150 km
500
symbol: g
acceleration due to gravity: g=9.8 m/s^2 downward
What is acceleration due to gravity and its symbol?
500
Suppose as you are riding you apply the brakes to slow down. If you slowdown from 9 m/s forward to 2 m/s forward, your change in velocity is what?
So the answer is -7 m/s
500
(9.8 m/s square)(1.5 s)
? =15 m/s
Suppose a rock falls from the top of a high cliff. What is the change in velocity of the rock after it has fallen for 1.5 s?
500
it provides information about the object's velocity and acceleration