What formula do you use to calculate speed?
S = D/T
How do we describe the line when an object is at rest?
It is a horizontal line.
Describe what the graph is showing.
object moving at a constant speed
What is the speed of this object?
5 m/s
A car travels 60 miles in 2 hours. What is it's speed?
30 mi/hr
What is constant speed?
When a speed stays the same
What type of line shows a constant speed?
Diagonal line.
Describe the motion of the object in this graph.
object is not in motion
Describe what is happening with the object's motion between seconds 7 and 8.
object is not in motion
A marble took 5 seconds to roll from one end of an 10-meter track to the other. What was its average speed?
2 m/s
What is a reference point?
Object used to determine if another object is in motion.
What is the type of line created when an object is moving faster than another?
Steeper Line
Which car is traveling at the fastest speed?
Car A, it's line is steeper.
Jane made this graph of the distance her family traveled on a trip.
How far did they travel the first two hours of the trip?
100 km
A marble took 4 seconds to roll from one end of a 16-meter track to the other. What was its average speed?
4 m/s
mi/hr, m/s, etc.
How can you increase the speed of an object?
Release it from a higher point.
his graph shows the motion of an object.
Which best describes the motion of the object?
a) it is sitting still
b) it is moving at a constant speed
c) it is continually increases its speed
d) it travels at constant speed and suddenly stops
D. it travels at constant speed and suddenly stops
The graph below shows two delivery trucks traveling on the same highway.
Compare the speed of the two trucks
Truck A is traveling at a faster speed than truck B
What is the speed of the object?
1 m/s
The x axis measures time, what does the y axis measure?
Distance.
Carlos and Andrew decided to race each other home from school. The graph below shows the motion of the boys during the race. Which best describes the race?
a) both boys reached the finish line at the same time
b) Andrew won the race because he reached the finish line in a shorter amount of time
c) Carlos won the race because he reached the finish line in a shorter amount of time
d) Andrew won the race because he reached the finish line in a longer amount of time
What is C) Carlos won the race?
Describe the motion of the object in this graph.
object travels away from the starting point, stops, and then returns to the starting position
What happens to the object between the 8 and 10 second mark?
The object is moving back to it's starting point.
What is the average speed of this vehicle?
5 m/s