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WorksheetsForce and Pressure
Total questions: 25
Worksheet time: 13mins
When you increase your depth under water, the water pressure on your body
increases
decreases
stays the same
How do you Calculate Pressure
Force(N)/Area(m2)
Force(kg)/Area(mi2)
Area(m2)/Force(N)
Why won't you sink in mud if you wear boots?
Because the surface area is larger creating less pressure.
Has air in it to keep you floating.
Because the mud won't want you.
Diagram shows the design of a dam. Why does the thickness of the dam increase with its depth?
The design of this structure is stronger.
Water pressure increases with depth.
The cost of construction is lower.
Water pressure acts uniformly in all directions.
Watch the tyres of tractor rolling. Rear tyres are broader because
It looks good.
Broader tyres lessen the muscular Force required.
Broader tyres lessen the pressure on ground.
Broader tyres lessen the friction on ground.
This is an example of the everyday application of pressure in:
Solids
Liquids
Gases
Plasma
The force between two charged bodies is called
Magnetic force
Electrostatic force
Muscular force
Frictional force
When two forces act in opposite directions, then the resultant force acting on it will be
sum of two forces
difference between two forces
both of these
None of these
Identify barometer.
Two objects repel each other. This repulsion could be due to
frictional force only
electrostatic force only
magnetic force only
either a magnetic or an electrostatic force
An object weighing 400 N is placed on an area of 100 m2 . What is the pressure applied by the object on that area?
40000 Pa
4 Pa
40 Pa
0.04 Pa
Which one among the following is not a type of non-contact forces?
Muscular force
Magnetic force
Gravitational force
Electrostatic force
A woman has 4 type of shoes. Which will exert the greatest pressure on the ground when she wears them?
Why is the atmospheric pressure at a higher altitude lower?
Temperature is high
Density of air is high
The layer of air is thin
The volume of air does not change
Diagram below shows an apple is floating in a beaker of water. Which of the following statement describes the buoyant force correctly?
The buoyant force equals to the mass of the water displaced
The buoyant force equals to the weight of the apple
The buoyant force equals to the volume of the water displaced
The buoyant force equals to the mass of the apple
Diagram shows water spurting out from a flask when a force is exerted on the piston. Why does the water spurt out uniformly in all direction？
Force is exerted uniformly
Surface area of piston is small
Pressure is transmitted uniformly
The holes on the surface of the flask are small
Diagram shows the random motion of the gas molecules inside a container. The pressure of the gas will NOT increase if
The number of molecules in the container is increased
The mass of the molecules is increased
The speed of the molecules is increased
The volume of the container is increased
