Show:
Describing Motion
Measuring Motion
Speed
Velocity
Acceleration
100
A person, place, or thing used to determine if an object is in motion is called?
Reference Point
100
What is the SI unit for length?
Meter
100
What is speed?
The distance traveled per unit time
100
What is velocity?
Speed in a given direction
100
What are 3 ways that an object can accelerate?
speeding up, slowing down, changing direction
200
What is the distance from another object is changing?
Motion
200
How many centimeters are there in a meter?
100
200
How do you calculate average speed?
total distance divided by the total time
200
To know an object's velocity you need to know?
Speed and direction of the object
200
What is acceleration?
The rate at which velocity changes
300
Why is it important to know if your reference point is moving?
If your reference point is moving you will find it difficult to determine which direction you are moving if you are moving.
300
How many meters are there in a kilometer?
1000
300
What is the rate at which an object is moving at a given instant time.
Instantaneous Speed
300
What is slope?
Steepness of a line on a graph
300
How do you calculate acceleration?
Change in speed per unit of time final speed - initial speed divided by time
400
Suppose you are riding in a car. Describe your motion relative to the car and the road.
You are stationary relative to the car and moving relative to the road.
400
What is the system of measurement used by scientists?
International System of Units
400
What is the equation to calculate speed?
Distance divided by time
400
How do you calculate slope of a line?
Dividing the rise by the run
400
To analyze the motion of an accelerating object what 2 types of graphs can you use?
Speed-versus-time graph and Distance-versus-time graph
500
How do you know an object is moving?
an object is moving when it s changing position.
500
This week at swim practice, Jamie swam a total of 1500m, while Ellie swam 1.6km. Which swimmer swam the greater distance?
Ellie swam the greater distance 1.6km = 1600m
500
What does the slope of a distance-versus-time graph show you about the motion of an object?
The speed of the moving object
500
What does the slope of a graph show?
How fast one variable changes compared to the other variable.
500
How is an object moving if a slanted, straight line on a speed-versus-time graph represents its motion?
The object is either accelerating (line slanted upward) or decelerating (line slanted downward) at a constant rate