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WorksheetsFORCE AND PRESSURE
Total questions: 100
Worksheet time: 1hrs 6mins
In Fig two boys A and B are shown applying force on a block. If the block moves towards the right, which one of the following statements is correct?
Magnitude of force applied by A is greater than that of B
Magnitude of force applied by A is smaller than that of B.
Net force on the block is towards A.
Magnitude of force applied by A is equal to that of B.
A brick is kept in three different ways on a table as shown in Fig. The pressure exerted by the brick on the table will be
maximum in position A
maximum in position B
maximum in position C
equal in all cases.
which force is non contact force
gravitational
magnetic
electrostatic
all of the above
what kind of force is Friction
(a)
Watch the green man. Which force(s) are acting in this situation?
Frictional Force only.
Gravitational Force only.
Muscular Force only.
Muscular and Gravitational Force.
At higher altitudes, which one becomes true?
Higher the altitude, higher the atmospheric pressure.
Higher the altitude, greater the force exerted by air molecules.
It's an example of fluid pressure.
The higher you go, lesser is the atmospheric pressure.
Watch the green man skating. Choose all options that are correct.
Both Contact and Non-Contact forces acting here.
Non-Contact force is only acting here.
Rolling Friction and Gravitational Force are present.
Sliding Friction and Gravitational Force are present.
Observe the image carefully. What's NOT happening here?
People on the left side win the game.
Nobody wins.
This is balanced situation.
Resultant Force is zero.
When you increase your depth under water, the water pressure on your body
increases
decreases
stays the same
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.
What is pressure?
The amount of force exerted on a surface
The surface area of an object
The weight of an object
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.
Pressure can be exerted by solids, liquids and gases.
TRUE
FALSE
This is an example of the everyday application of pressure in:
Solids
Liquids
Gases
Plasma
The pressure inside the syringe will decrease if we move the plunger in:
Direction A
Direction B
We don't have to move the plunger as the pressure will change on its own.
None of the above answers.
The reason gases can be compressed is because:
The particles are very close together.
The particles are merely vibrating.
The particles are unable to move.
The particles are very far apart.
When a diver dives deeper into the ocean, he will experience ...................... liquid pressure
greater
less
no
As you climb up a mountain what happens to the air pressure?
decreases
increases
stays the same
In what direction(s) does air exert pressure?
everywhere
no where
there is no pressure
downward
Pressure rxerted by air on the earth's surface
Pressure
Atmospheric pressure
Heat pressure
What is true about the volume of displaced fluid for an object that is completely submerged?
The volume of displaced fluid is equal to the object’s volume.
The volume of displaced fluid is less than the object’s volume.
The volume of displaced fluid is greater than the object’s volume.
The volume of displaced fluid is not related to the object’s volume.
A person wearing steel toe capped boots and a person wearing stilleto heels stand on a wooden floor. They both have the same weight. Which person exerts a greater pressure on the floor?
The person wearing the boots because the boots have a larger surface area in contact with the floor
The person with the stiletto heels because they have a larger surface area in contact with the floor
The person wearing the boots because the boots have a smaller surface area in contact with the floor
The person with the stiletto heels because they have a smaller surface area in contact with the floor
Look at the pressure triangle. How do we calculate the area?
f ÷ a
f x p
p x f
f ÷ p
Army tank tracks are useful for travelling through the mud because..
they decrease the force the vehicle exerts on the ground
they increase the force the vehicle exerts on the ground
they decrease the pressure the vehicle exerts on the ground
they increase the pressure the vehicle exerts on the ground
Which of the statements is true?
The bottom of the boot exerts more pressure than the shoe as a result of an increase in surface area.
The bottom of the shoe exerts more pressure than the boot as a result of an decrease in surface area.
The bottom of the shoe exerts the same pressure as the bottom of the boot.
Identify the odd pair in the following.
a) Friction – Contact force
b) Muscular Force – Contact force
c) Electrostatic force – Contact force
d) Magnetic force – Noncontact force
Chose the correct statement from the following-
a) Unbalanced forces are responsible for the change in shape
b) The SI unit of Force is Pascal.
c) Force cannot change the direction of a body.
d) Balanced forces are responsible for the change in shape.
Assertion (A): Magnetic force is an example of contact force. Reason(R): In contact force bodies are in direct contact.
a) Both A and R are true, and R is the correct explanation of the assertion.
b) Both A and R are true, but R is not the correct explanation of the assertion.
c) A is true, but R is false.
d) A is false, but R is true
Assertion (A): Sea divers wear a special suit when they go deep in the sea.
Reason(R): The pressure increases as we go deeper into a liquid.
a) Both A and R are true, and R is the correct explanation of the assertion.
b) Both A and R are true, but R is not the correct explanation of the assertion.
c) A is true, but R is false.
d) A is false, but R is true
Push or pull to any object is termed as
a) Pressure
b) Force
c) Heat
d) Energy
Pressure is –
a) Power exerted on a body.
b) Energy used by the body.
c) Force exerted per unit length.
d) Force exerted per unit area.
An increase in the area on which force is applied will-
a) Decrease the Pressure.
b) Increase the Pressure.
c) No change in Pressure.
d) Change mass of the body
unit for Pressure is-
a) Newton (Pascal)
b) N/m (Pascal)
c) N2/m (Pascal)
d) N/m (Pascal)
The S.I. units associated with force is
Newton
Pascal
meter
meter square
TRUE OR FALSE
S.I unit of pressure is Pascal
True
False
Maybe true, Maybe false
Maybe false, Maybetrue
THE PRESSURE WHICH IS EXERTED BY THE AIR AROUND US IS KNOWN AS:
FRICTION
FORCE
ATMOSPHERIC PRESSURE
MUSCULAR FORCE
FORCE ACTING ON PER UNIT AREA IS CALLED:
FORCE
NON-CONTACT FORCE
PRESSURE
CONTACT FORCE
A _____ EXERTED BY AN OBJECT ON ANOTHER IS FORCE.
PUSH OR PULL
CONTACT FORCES
MAGNITUDE
PRESSURE
The force exerted by the earth to pull the object towards itself is called:
electrostatic force
gravitational force
muscular force
contact force
Muscular force is also called ___________ force.
non-contact
contact
gravitational
magnetic
The force exerted by a charged body on another charge:
gravitational force
electrostatic force
non-contact force
contact force
Force changes the
motion of body
speed of body
shape of body
all of these
The force exerted by our muscle is called:
electrostatic force
muscular force
gravitational force
non-contact force
1 kilogram weight is equal to
98 N
9.8 N
0.98 N
0.098 N
A spring balance is used for measuring:
mass
weight
pressure
speed
Two boys A and B are applying force on a block. If the block moves towards the boy A, which one of the following statements is correct?
Magnitude of force applied by A is greater than that of B
Magnitude of force applied by A is smaller than that of B.
Net force on the block is towards B.
Magnitude of force applied by A is equal to that of B
When two forces act in opposite directions, then net force acting is the:
sum of two forces
difference between two forces
both of these
none of these
The strength of force is expressed by its
weight
mass
magnitude
longitudinal force
Leaves fall down on the ground due to:
electrostatic force
magnetic force
gravitational force
muscular force
State of motion is described by
Position of rest
Position of motion
Both by the state of rest or motion
none of these
name the instrument used to measure atmospheric pressure ?
(a)
In Fig two boys A and B are shown applying force on a block. If the block moves towards the right, which one of the following statements is correct?
Magnitude of force applied by A is greater than that of B
Magnitude of force applied by A is smaller than that of B.
Net force on the block is towards A.
Magnitude of force applied by A is equal to that of B.
During dry weather, while combing hair, sometimes we experience hair flying apart. The force responsible for this is___________
force of gravity
electrostatic force.
force of friction.
magnetic force
A brick is kept in three different ways on a table as shown in Fig. The pressure exerted by the brick on the table will be
maximum in position A
maximum in position B
maximum in position C
equal in all cases.
which force is non contact force
gravitational
magnetic
electrostatic
all of the above
write two states of motion .
what kind of force is Friction
(a)
