click below
click below
Normal Size Small Size show me how
Ch. 4 p.p. notes
poweponnt questions
Question | Answer |
---|---|
Who helped explain motion by studying balls rolling on inclined planes? | Galileo |
Are things truly at rest when they appear to be? | No, they are actually moving. |
What was first calculated by Galileo | Speed |
What is the most common unit for speed? | meters per second. |
Where is instantaneous speed shown? | The speedometer of a car. |
What are the two components of velocity? | they are speed and direction |
What is happining when there is the same speed and same direction? | constant velocity |
What happens when there is a different speed and different direction? | there is a changing velocity |
What are the three controls on a car that can change velocity? | gas pedal, brake, and the steering wheel |