Idea 5of 5Builds onOne clock
Speed sets the range
How far out will it land?
Today you'll discover
- what doubling the speed does
- what doubling the height does
- a word for how far out
Think firstFire it twice as fast. How far out?
Same height, twice the sideways speed. How far out does it land?
Predict first. Then move the two sliders and watch which one moves the time.
Both balls landing, with the landing marks. After a prediction, a bench with a height slider and a speed slider and three challenges. Then the faster launch's landing further out, named as the range. The last step asks which of two equal-range launches was in the air longer.
See the whole ideathe big idea and the key word, in one place
The big idea
Height sets the time. Speed sets the range.
See the patternOnly the height touches the time. Only the time and the speed touch the range.
Key word
- range
- how far a projectile lands from where it was launched, measured along the ground
About this modelAir is ignored: the ball is drawn as it would move in a vacuum.
Air is ignored: the ball is drawn as it would move in a vacuum.
Ready to use it?
- Find a projectile's range from its speed and its launch height.