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What is an unbalanced force?/
two or more forces of equal strength acting on an object in opposite directions. NO MOVEMENT
What is an unbalanced force?
The forces are not equal. The force creates movement,
In which picture is the highest pressure on the floor?
d
List two ways that people use pressurised air.
tires- drive smoothly. Scuba tanks- Breathe under water
Air pressure increases the higher you go in the atmosphere. True or false?
False
How can you increase the friction between two objects?
Change the surface (rough). Change the weight (heavier)
What is the formula to work out pressure?
pushing force / area
Spell...
precipitation
Why does the water in the bottom hole move out further?
It has the highest water pressure. The weight of the water above is pressing down.
Water vapour is given off by plants in the process of _________.
transpiration
___________- Some water is held in lakes and ponds, or seeps into the ground and is stored as groundwater.
Infiltration
Name the 6 stages of the water cycle that we have looked at.
Evaporation, Transpiration, Condensation, Precipitation, Infiltration, Runoff
What is water resistance?
Friction between a moving object and water.
What is air resistance?
Friction between a moving object and air.
