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Speed ECMS
Review of Speed, Velocity, and Acceleration
Question | Answer |
---|---|
Total Distance over Total Time | Average Speed |
Speed and Direction | Velocity |
Change in Speed and Direction | Acceleration |
What is the formula for velocity? | Distance divided by time in a specific direction |
What is the formula for acceleration? | Final Velocity-Starting Velocity divided by time |
Distance divided by time | Speed |
When a car slows down it is called___________. | deceleration or negative acceleration |
When a car speeds up it is called________. | Positive Acceleration |
What does a speedometer in your car tell you? | Instantaneous Speed |
What is speed in a particular direction? | Velocity |
When you move from place to place, you change your ______. | Position |
What is an object's change in position over time? | Motion |
What is a reference point? | Something that stays in place |
To find the speed of an object in motion you need to measure___________ and _____________. | Distance and Time |
What tells you how quickly an object changes position? | Speed |
Acceleration measures change in _____________. | Velocity |
Jake walks 100 m in 50 sec, moving at different speeds. Dividing 100m by 50s gives you Jake's _____________. | Average Speed |
Michael is riding his bicycle. He begins pedaling harder. What do you predict will happen? | His speed will increase |
The initial speed of a truck is called _____________. | Starting Speed |