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CBSE Class 8 Science Worksheet

Force and Pressure

1.
Choose the correct answer: Area of the pointed end of a nail is always kept smaller than the head so as to _____________.
A) Increase the pressure of push B) Decrease the pressure of push C) Increase the force D) Decrease the force
2.
Choose the correct answer: As we go deeper inside the container containing fluid, the pressure _________________.
A) Increases B) Decreases C) Remains constant D) Either increase or decrease
3.
State True or False: A body will remain in the state of motion on rolling on the ground if friction is very large.
A) true B) false
4.

What is the unit of pressure?

A)

N/cm2

B)

N/m2

C)

N/kg2

D)

None of the above

5.
State True or False: Force exerted by the magnet is an example of contact force.
A) true B) false
6.
Fill in the blanks: The walls of a dam are _____________ near the bottom than at the top.
8.
State True or False: Force has both magnitude and direction.
A) true B) false
9.
State True or False: Friction opposes the relative motion between two surfaces in contact.
A) true B) false
10.
Which of the following is an example of contact force?
A) Frictional force B) Electrostatic force C) Magnetostatic force D) Gravitational force
11.
State True or False: Liquids exert pressure on the walls of the container.
A) true B) false
12.
Fill in the blanks: An object will not move if two equal forces are applied in ______________ direction.
13.
Choose the correct answer: The direction of frictional force acting on a moving object is ________________.
A) Along the direction of motion B) Perpendicular to direction of motion C) Opposite to direction of motion D) Any direction
14.
Fill in the blanks: We _______ the rope to draw a bucket from the well.
15.
Choose the correct answer: The force responsible for changing the state of motion of objects is called __________________.
A) Heat B) Pressure C) Friction D) None of these
16.
Choose the correct answer: The force which is responsible for bringing the motion of a ball rolling on the ground to rest is ___________________.
A) Electrostatic force B) Magnetostatic force C) Gravitational force D) Frictional force
17.
Fill in the blanks: The force exerted to change the shape of the dough to form a flat chapatti is _____________ force.
18.
State True or False: Atmospheric pressure increases with increase in altitude.
A) true B) false
19.
Fill in the blanks: A positively charged particle always _____________ positively charged particle.
20.
Choose the correct answer: If the forces acting on a body are unbalanced, the net force force on the body is _________________.
A) Greater than zero B) Less than zero C) Zero D) Either greater or less than zero

CBSE Class 8 Science Worksheet

Force and Pressure

Answers

1.
Option A
2.
Option A
3.
Option B
4.
Option B
5.
Option B

6.
Thicker
7.
Option A
8.
Option A
9.
Option A
10.
Option A
11.
Option A

12.
Opposite
13.
Option C

14.
Pull
15.
Option C
16.
Option D

17.
Muscular
18.
Option B

19.
Repels
20.
Option D

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