The relationship between speed, distance and time is _____
Speed = distance/time
100
11 metres
Scalar
100
Object travels same speed for each time interval
Constant Speed
100
an object travels the same speed and same direction for each time interval
Constant Velocity
100
What is acceleration?
- Change in velocity of an object during a time interval
- Rate of change of velocity/time
200
A ferris wheel moves at a constant speed but changing ________
Velocity
200
50 km North
Vector
200
Object travels different distance for each time interval
Acceleration
200
What is changing velocity?
object's speed or direction, or both change for each time interval
200
What does constant velocity look like on a velocity-time graph?
Line horizontal
300
Acceleration is
a changing velocity over time
300
Vectors have ________ and _________
direction and magnitude
300
What is instantaneous speed?
The speed at a specific instant of time
300
When a distance time graph is curved the object is _________.
accelerating
300
What is negative acceleration and how is it represented on a velocity-time graph?
Decreasing velocity,... graph shows a negative slope
400
A piece of paper will fall slower than a book due to
air resistance
400
Name a scalar quantity
mass, temp, time...
400
How do you measure Speed from a distance time graph?
slope
400
What is the formula for calculating average velocity?
Change in distance divided by time
400
What color is Mrs. LoTempio's bag?
Orange and red
500
The SI unit for acceleration is
m/s/s
500
What is the difference between speed and velocity?
Provide an example.
varies.
500
John Skateboards 3km (E), 9km (W) then another 6km (E) in a total of 2 hours.
a) what is his average speed?
b) what is his average velocity?
c) Why are thee two answers not the same?
a) 9km/h
b) 0km/h
c) velocity is displacement over time
500
How do you measure acceleration of an object on a velocity-time graph?