Define Vocabulary
Average Speed
Position and Motion
Speed and Velocity
Acceleration
100
Motion
What is The process of changing position?
100
The equation for average speed.
What is distance/time?
100
The difference between distance and displacement.
What is the distance an object moves is the actual length of its path. Its displacement is the length of a line drawn from the initial positions and the final position?
100
The difference between constant speed and instantaneous speed.
What is Constant speed is the rate of change in position when an object travels the same distance each second. Instantaneous speed is the speed of an object at one specific instant in time?
100
The acceleration of a car during a 5 second interval in which it goes from 10 m/s to 15 m/s.
What is 1 m/s^2
200
Position
What is The object's distance and direction from a reference point?
200
Find the average speed of a marble that takes 6 seconds to roll 30 m across a gymnasium floor.
What is 5 m/s?
200
Explain why a discription of position depends on a reference point.
What is postion is the distance and direction of an object from a reference point. If the reference point changes, the distance and direction of the object from the reference point may change?
200
Three ways that an object can change its velocity.
What is by changing its speed, its direction, or its speed and direction?
200
Two conditions that can change when an object accelerates.
What is a change in velocity due to an increase/decrease in speed or a change in direction?
300
Instantaneous Speed
What is The speed at a specific instant in time?
300
Calculate average speed. Sara takes a 40-minute bus ride from her home to her grandparents’ home, which is 8 km away.
What is 0.2 km/min
300
To describe a position in more than one dimension, you must use more than one...
What is reference direction?
300
On a distance-time graph how is constant speed represented.
What is by a straight line?
300
Determine acceleration: Raul gets his car to go from a speed of 96 km/h to a speed of 240 km/h in 9 seconds.
What is 16 m/s^2?
400
Velocity
What is The speed and direction of a moving object?
400
Graph that is used to calculate average speed.
What is a distance-time graph?
400
Relative to some reference points, your nose is in motion when you run. Relative to others, is is not in motion. Give an example of each.
What is (various answers)
400
Assess how the velocity of an object could change even if its speed remained constant.
What is Velocity describes the speed and direction of an object in motion. If the direction of motion changes, the velocity changes, even if the speed remains constant?
400
Calculate the acceleration for a car with an initial speed of 2 m/s that reaches a speed of 12 m/s just 5 seconds later. The car does not change direction.
What is 2 m/s^2?
500
Acceleration
What is The measure of the change in velocity during a period of time.
500
Calculate average speed. A plane trip covers 2,000 km and takes 4 hours and 15 minutes. In kilometers per hour.
What is 470.59 km/h?
500
Three things you need to describe a position.
What is reference point, reference direction, distance?
500
Contrast the way an object that is speeding up and one that is slowing down is shown on a distance-time graph.
What is An object that is speeding up would be shown by a line curving upward. An object that is slowing down would be shown by a line curving downward?
500
Calculate the acceleration of car A, which travels at 10 m/s and then increases its speed to 20 m/s over 5 seconds. Then calculate the acceleration of car B, which travels at 2 m/s and increases its speed to 20 m/s over 6 seconds. Determine which car has the greater acceleration.
What is car B?
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