Home Discussion Forum How does water on Earthâ€™s surface perform â€œworkâ€?

# How does water on Earthâ€™s surface perform â€œworkâ€?

How does water on Earth’s surface perform “work”?
When water moves it has potential energy.
When water moves it has kinetic energy.
The potential energy of water becomes kinetic when it is in a pond.
The potential energy of the water moves the rocks in the river.

1. When water moves it gives potential energy.
When water moves it has kinetic energy.
The potential energy of water becomes kinetic when it is in a pond.
The potential energy of the water moves the rocks in the river.
when water falls into spaces in rocks it becomes ice and helps crack rocks
besides water carries ships
moves terubines to give electricity
it cools our body
produces electricity and energy

2. since work done depends on the force apllied by the object and the distance covered in responce to that force….
WORK DONE=FORCE *DISTANCE
so in that case water does some perform work while moving on the earth’s surface

3. WHEN WATER MOVES IT HAS KINETIC ENERGY.
Water which falls as rain on high ground can then flow down hill under the influence of gravity. Water therefore has stored energy which is released to do work when it flows.
Water trapped in a pond has potential energy as it cannot flow anywhere until it is released to flow downhill.
When water moves it has potential energy. ( False – it has kinetic energy )
When water moves it has kinetic energy. ( True )
The potential energy of water becomes kinetic when it is in a pond. ( False it is potential energy if the water is trapped and not flowing)
The potential energy of the water moves the rocks in the river. ( False – kinetic energy does this.

7

16

13

6

7