Acceleration
Motion Graphs
Vocab
Motion
100
Write an example of negative acceleration (deceleration)?
car approaching red light, slamming on the brakes, slowing to a walk from a run, etc.
100
Is Accel 1 accelerating constantly? How can you tell?
Yes, Accel 1 is accelerating (speeding up) by the same amount each second.
100
Which of these could reflect the speed of a car?
a. 45 h/km
b. 45 mph East
c. 45 m
d.45 h
e. 45 km/h
E
100
The following runners ran a distance of 200m to the finish line. Place the runners in order of 1st to last place.
1st-A
2nd-B
Last-C
200
Is this an example of speed, velocity, or acceleration?
acceleration
200
Describe the motion of Accel 2
Accel 2 is accelerating at different rates throughout the trip.
Speeding up and then quickly slowing down
200
What is the difference between speed and velocity?
Velocity includes a direction
200
Draw a distance-time graph that shows an object traveling at a constant velocity
300
The scientific term for slowing down
Deceleration
300
At what section(s) on the graph below is the object not in motion?
D-E
300
A plane flying 90km/h to the Northeast is an example of?
Velocity
300
What does the graph show?
increasing speed
400
List the 3 actions that qualify an object as accelerating
1. Speeding up
2. Slowing down
3. changing direction
400
Draw a distance-time graph of an object at rest (no velocity)
400
When you know the speed and direction an object is moving, you know its ________.
velocity
400
If a race-car driver reduces the amount of time it takes them to complete a lap, what has happened to their speed?
It increased
500
T or F: A car traveling at a constant speed around a curve is NOT accelerating. Why?
F. The car is changing direction
500
Describe the motion of an object at point B
Constant Speed toward reference point
500
What is measured on the x-axis of both distance-time graphs and velocity-time graphs?
time
500
Describe the motion of Katie and Eric's walk:
They walked away from home at a constant speed, stopped for 30 minutes, and then returned back home at a constant speed.