11.2 Speed And Velocity Answer Key
Question: Define Speed..
Answer: Is the ratio of the distance an object moves to the amount of time the object moves
Question: The SI units for speed are
Answer: Meters per second (m/s)
Question: How is Instantaneous speed different than average speed?
Answer: Instantaneous speed is measured at a particular instant and average speed is determined for the entire existence or time of a trip
Question: What is the equation you use for calculating the velocity?
Answer: Velocity = distance/ time
Question: What is the equation you use for finding the time?
Answer: Time=distance/velocity
Question: What is the equation you use for finding the distance?
Answer: Distance= (time)(velocity)
Question: What type of speed does an automobile’s speedometer display?
Answer: The instantaneous speed
Question: The slope of a line on a distance-time graph represents..
Answer: Speed
Question: How do speed and velocity differ?
Answer: Speed is the ratio of the distance and time of a moving object and velocity is speed and direction put together
Question: Describe what a change in velocity would be..
Answer: A moving object gains speed, a moving object changes direction, a moving object slows down