SARVODAYA PU COLLEGE, TUMKUR
I PU PHYSICS
IMPORTANT QUESTIONS BASED ON BLUEPRINT
1. UNITS AND MEASUREMENT
I. TWO mark questions (KNOWLEDGE):
1) What are physical quantities? What is meant by measurement of a physical quantity?
2) How many i) fundamental units and ii) supplementary units are there in SI system?
3) Name the SI unit of (i) plane angle and (ii) solid angle.
4) What is meant by dimensions of a physical quantity? Give the dimensions of speed.
5) What is a dimensional formula? Give an example.
6) What is a dimensional equation? Give an example.
7) Give the dimensional formula for (i) speed, (ii) velocity, (ii) acceleration, (iv) force, v) momentum,
(vi) work, (vii) energy, (viii) pressure, (ix) density and (x) specific heat.
8) State the principle of homogeneity. Name a physical quantity which has units but no dimensions.
9) Name any two physical quantities which are dimensionless.
10) Name any two pairs of physical quantities which have the same dimensions.
11) Give the number of significant figures in (i) 41005, (ii) 3.62 X 10-5, (iii) 0.002304, (iv) 3.500, (v) 36800
and (vi) 0.06900.
12) Express (i) 0.0001264 and (ii) 2568000 in scientific notation.
13) Check the dimensional correctness of the equations i) v = u + at, ii) potential energy, EP = mgh and
1
iii) kinetic energy, EK = mv2 .
2
2. MOTION IN A STRAIGHT LINE
(ALL POSSIBLE 5 MARK QUESTIONS ARE IN THE 3 MODEL PAPERS)
3. MOTION IN A PLANE
I. TWO mark questions (Numerical problems):
14) A vector of 20 N makes an angle of 450 with positive X – axis. Find its components along X – axis and Y – axis.
15) x and y components of a vector A are of magnitudes 5 unit and 5 3 unit respectively. Find the magnitude of A .
16) x and y components of a vector A are of magnitudes 4 unit and 4 3 unit respectively. Find the angle being
subtended by vector A with X-axis.
17) If A 4 i 6 j and B 7 i 5 j . Find A + B and A - B .
18) A body is projected from a point with a velocity 20 ms-1 making an angle 450 with X-axis. Find the horizontal
range. Given, g = 10 ms-2.
19) Two forces of magnitude 3 N and 4 N are acting at a point making an angle 900. Find the magnitude of their
resultant.
I PU PHY IMP QUESTIONS BASED ON BP KVV SPC 23-24 Page 1
, 20) An insect trapped in a circular groove of radius 15 cm moves along the groove steadily and completes
8 revolutions in 100 s. What is the angular speed?
21) A stone is tied to the end of a string of 80cm long is whirled in a horizontal circle with a constant speed. If the
stone makes 14 revolutions in 25 s. Find the magnitude of centripetal acceleration acting on the stone.
II. THREE mark questions (KNOWLEDGE):
22) What are scalars? Mention any two examples for the same.
23) What are vectors? Mention any two examples for the same.
24) What is i) a position vector, ii) a unit vector and iii) a null vector?
25) State triangle law of vector addition. When is the resultant of two non- zero vectors i) maximum and ii) minimum?
26) What is meant by resolution of a vector? Give the expressions for magnitude of x and y components of a vector A
making an angle θ with X-axis.
27) What is a projectile? Define i) time of flight and ii) range of a projectile.
28) Define centripetal acceleration. Mention the expression for it in terms of i) linear velocity and ii) angular velocity.
4. LAWS OF MOTION
I. TWO mark questions (KNOWLEDGE):
29) What is meant by inertia of a body? Give an illustration for inertia of rest.
30) Define linear momentum of a vector. Mention its SI unit.
31) Define force. Mention its SI unit.
32) What are impulsive forces? Give an example.
33) What is meant by impulse? Mention its SI unit.
34) What are action-reaction pairs? Give an example.
35) Name any two common forces encountered in mechanics.
36) Give the expression for spring force and explain the terms.
37) What is meant by friction? Define limiting static friction.
38) What is meant by i) static friction and ii) kinetic friction?
39) Give the expression for the limiting static friction and explain the terms.
40) Give the expression for the kinetic friction and explain the terms.
41) Mention any two methods of reducing friction.
42) What is a centripetal force? Give an expression for the same.
43) What provides the centripetal force in case of (i) a stone rotated in a circle by holding a string attached to it and
(ii) motion of a planet around the Sun?
44) Give the expression for the maximum speed with which a vehicle can move i) on unbanked road and ii) on banked
road.
45) Mention any two advantages of banking of road.
II. THREE mark questions (UNDERSTAND):
46) Derive F=ma using Newton’s second law.
47) Explain the law of conservation of linear momentum with an illustration.
48) What is the condition required for a body to be in equilibrium? Explain the equilibrium of a body which is under
the action of two forces.
I PU PHY IMP QUESTIONS BASED ON BP KVV SPC 23-24 Page 2
I PU PHYSICS
IMPORTANT QUESTIONS BASED ON BLUEPRINT
1. UNITS AND MEASUREMENT
I. TWO mark questions (KNOWLEDGE):
1) What are physical quantities? What is meant by measurement of a physical quantity?
2) How many i) fundamental units and ii) supplementary units are there in SI system?
3) Name the SI unit of (i) plane angle and (ii) solid angle.
4) What is meant by dimensions of a physical quantity? Give the dimensions of speed.
5) What is a dimensional formula? Give an example.
6) What is a dimensional equation? Give an example.
7) Give the dimensional formula for (i) speed, (ii) velocity, (ii) acceleration, (iv) force, v) momentum,
(vi) work, (vii) energy, (viii) pressure, (ix) density and (x) specific heat.
8) State the principle of homogeneity. Name a physical quantity which has units but no dimensions.
9) Name any two physical quantities which are dimensionless.
10) Name any two pairs of physical quantities which have the same dimensions.
11) Give the number of significant figures in (i) 41005, (ii) 3.62 X 10-5, (iii) 0.002304, (iv) 3.500, (v) 36800
and (vi) 0.06900.
12) Express (i) 0.0001264 and (ii) 2568000 in scientific notation.
13) Check the dimensional correctness of the equations i) v = u + at, ii) potential energy, EP = mgh and
1
iii) kinetic energy, EK = mv2 .
2
2. MOTION IN A STRAIGHT LINE
(ALL POSSIBLE 5 MARK QUESTIONS ARE IN THE 3 MODEL PAPERS)
3. MOTION IN A PLANE
I. TWO mark questions (Numerical problems):
14) A vector of 20 N makes an angle of 450 with positive X – axis. Find its components along X – axis and Y – axis.
15) x and y components of a vector A are of magnitudes 5 unit and 5 3 unit respectively. Find the magnitude of A .
16) x and y components of a vector A are of magnitudes 4 unit and 4 3 unit respectively. Find the angle being
subtended by vector A with X-axis.
17) If A 4 i 6 j and B 7 i 5 j . Find A + B and A - B .
18) A body is projected from a point with a velocity 20 ms-1 making an angle 450 with X-axis. Find the horizontal
range. Given, g = 10 ms-2.
19) Two forces of magnitude 3 N and 4 N are acting at a point making an angle 900. Find the magnitude of their
resultant.
I PU PHY IMP QUESTIONS BASED ON BP KVV SPC 23-24 Page 1
, 20) An insect trapped in a circular groove of radius 15 cm moves along the groove steadily and completes
8 revolutions in 100 s. What is the angular speed?
21) A stone is tied to the end of a string of 80cm long is whirled in a horizontal circle with a constant speed. If the
stone makes 14 revolutions in 25 s. Find the magnitude of centripetal acceleration acting on the stone.
II. THREE mark questions (KNOWLEDGE):
22) What are scalars? Mention any two examples for the same.
23) What are vectors? Mention any two examples for the same.
24) What is i) a position vector, ii) a unit vector and iii) a null vector?
25) State triangle law of vector addition. When is the resultant of two non- zero vectors i) maximum and ii) minimum?
26) What is meant by resolution of a vector? Give the expressions for magnitude of x and y components of a vector A
making an angle θ with X-axis.
27) What is a projectile? Define i) time of flight and ii) range of a projectile.
28) Define centripetal acceleration. Mention the expression for it in terms of i) linear velocity and ii) angular velocity.
4. LAWS OF MOTION
I. TWO mark questions (KNOWLEDGE):
29) What is meant by inertia of a body? Give an illustration for inertia of rest.
30) Define linear momentum of a vector. Mention its SI unit.
31) Define force. Mention its SI unit.
32) What are impulsive forces? Give an example.
33) What is meant by impulse? Mention its SI unit.
34) What are action-reaction pairs? Give an example.
35) Name any two common forces encountered in mechanics.
36) Give the expression for spring force and explain the terms.
37) What is meant by friction? Define limiting static friction.
38) What is meant by i) static friction and ii) kinetic friction?
39) Give the expression for the limiting static friction and explain the terms.
40) Give the expression for the kinetic friction and explain the terms.
41) Mention any two methods of reducing friction.
42) What is a centripetal force? Give an expression for the same.
43) What provides the centripetal force in case of (i) a stone rotated in a circle by holding a string attached to it and
(ii) motion of a planet around the Sun?
44) Give the expression for the maximum speed with which a vehicle can move i) on unbanked road and ii) on banked
road.
45) Mention any two advantages of banking of road.
II. THREE mark questions (UNDERSTAND):
46) Derive F=ma using Newton’s second law.
47) Explain the law of conservation of linear momentum with an illustration.
48) What is the condition required for a body to be in equilibrium? Explain the equilibrium of a body which is under
the action of two forces.
I PU PHY IMP QUESTIONS BASED ON BP KVV SPC 23-24 Page 2
