Distance/Displacement
Which one has direction? Distance ordisplacement?
Displacement
What is the equation to find velocity/speed?
Distance / time
True/False: Acceleration is the rate at which velocity changes
True
How do you find the slope of a line?
Rise / run
The slope of a velocity/time graph tells us what?
A person walks 8 miles north, then 4 miles south. What is the person's distance traveled?
12 miles
What is the speed of an object that traveled 50 meters in 100 seconds?
0.5 m/s
If you walk at a pace of 1 m/s and then increase to a pace of 5 m/s in 8 seconds, what is your acceleration?
0.5 m/s2
What does the slope of a distance/time graph tell us?
speed
True/False: A horizontal line on a velocity/time graph means that the object is not moving
False. It means that the object has a constant velocity.
A person walks 8 miles north, then 4 miles south. What is the person's displacement?
4 miles north
Which one has direction? Speed or velocity?
Velocity
A runner goes from rest to a speed of 10 m/s in 5 seconds. What is their acceleration?
2 m/s2
True/False: The steeper the slope, the slower the object is moving
false
On a velocity/time graph, when do we know that the object is not moving?
When the velocity is zero. The line is on the x-axis.
A person walks 5 blocks south, 5 blocks east, then 5 blocks north. What is their distance and displacement?
Distance = 15 blocks
Displacement = 5 blocks East
A car traveled 50 km in 0.5 hours, then 75 km in1 hour, then 25 km in 1.25 hours. Calculate the average speed.
Total distance / total time
150 km / 2.75 hours
54.5 km/hour
Starting from rest, it took a person 20 seconds to achieve an acceleration of 5 m/s2. What is their final velocity?
100 m/s
If a person has a velocity of 0 m/s, what would that line look like on a distance/time graph?
a horizontal line
What is the acceleration of line A? (refer to image on slide 49) https://docs.google.com/presentation/d/1-O1FNDUDLajmjHPvGiHo726havfIwK1sA0Mga5DZhLw/edit?usp=sharing
40 m/s2
A person walks 4 blocks south, then 3 blocks west. What is their displacement?
5 blocks southeast
If you travel at 60 miles per hour, and you have to travel 350 miles, how long will it take you to arrive at your destination?
5.8 hours
How long would it take a person to go from a speed of 5 m/s to 25 m/s if they were accelerating at a rate of 2 m/s2?
10 seconds
A negative slope heading towards the x-axis
Describe the motion of the car (refer to the image on slide 51) https://docs.google.com/presentation/d/1-O1FNDUDLajmjHPvGiHo726havfIwK1sA0Mga5DZhLw/edit?usp=sharing
The car accelerated from rest to 60 m/s in 2 seconds. The car traveled at 60 m/s for 2 seconds. Then, the car accelerated (decelerated) from 60 m/s to rest in 3 seconds. The car remained at rest for 1 second. The car then accelerated from rest to 40 m/s in 2 seconds. The car traveled at 40 m/s for 2 seconds.