Speed
Graphing Motion
Math
Velocity
Motion
100
the speed of an object at a single instant of time
What is INSTANTANEOUS SPEED
100
Describe the motion represented by a horizontal line in a distance-time graph
What is A SLOPE OF 0 AND THE OBJECT IS NOT MOVING
100
An ant travels 75 cm in 5 s. What was the ant’s speed?
What is 15cm/s 75 cm/5 s = 15 cm/s
100
the speed of the object and its direction of motion.
What is velocity
100
The distance and direction of an object’s final position from its initial position.
What is DISPLACEMENT
200
the total distance an object travels divided by the total time ittakes to travel that distance.V=d/t
What is AVERAGE SPEED
200
What a constant line w/a slope up to the right on a distance-time graph represents aobut an object
What is the speed the speed is not cahnging and their distance is increasing
200
John rides his bike 2.3 km to school. After school, he rides an additional 1.4km to the mall in the opposite direction. What is his total distance traveled?
What is 3.7 km To find the total distance, add the distance traveled in each direction: 1.4 km + 2.3 km = 3.7 km
200
What 2 things you need to know to calculate the velocity of an object.
What is speed and direction?
200
A quantity specified by both size and direction
What is VECTOR
300
What do you calculate when you divide the total distance by the total time?
What is Average speed
300
What is the slope of a line on the distance time graph?
What is SPEED the higher the slope the greater the speed, but if the slope is low then the speed is low.
300
A squirrel runs 4.8 m across a lawn, stops, then runs 2.3 m back in the opposite direction. What is the squirrel's displacement from its starting point?
What is 2.5 m 4.8 m - 2.3 m = 2.5 m
300
A race car is traveling at a constant speed around a circular track, what is happening to the velocity?
What is "the velocity is changing"
300
The measure of how far an object moved.
What is DISTANCE
400
Explain whether, during a trip, a car’s instantaneous speed can ever be greater than its average speed.
What is Can be greater than its average. For instance, if the car travels at 60 mph for 1 seconds and then travels for 45 the rest of the trip its instantaneous speed would be greater than the average.
400
when graphing speed, this type of graph is used
What is a distance-time graph
400
v=d/t
What is THE EQUATION FOR AVERAGE SPEED
400
If people were on two different escalators going the same speed but the velocities were different, what must be true about the escalators
What is "they must be going opposite/ different directions"
400
How to tell if an object has moved
What is a referance frame
500
Describe the difference between average speed and constant speed
What is AVERAGE SPEED is the distance divided by the time. CONSTANT SPEED means that an object is travelling at the same speed throughout the whole time.
500
how you know one object's speed is greater that another on a distance-time graph
What is a steeper line (greater slope)
500
A bus leaves at 9 a.m. with a group of tourists. They travel 350 km before they stop for lunch. Then they travel an additional 250 km until the end of their trip at 3 p.m. What was the average speed of the bus?
What is 100km/h total distance = 350 km + 250 km = 600 km; total time = 6 h; 600 km/6 h = 100 km/h
500
If a hurricane was located 450km esat of your location at 10 km/hr, do you have enough info. to know whether or not to take cover?
What is no, the direction it is traveling is necessary?
500
You are walking toward the back of a bus that is moving forward with a constant velocity. Describe your motion relative to the bus and relative to a point on the ground.
What is Relative to the bus, you are going backwards at your walking speed. Realtive to the ground, you are walking forward with a speed of the speed of the bus - your walking speed
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