ARMY PUBLIC COLLEGE (BOYS)
Test Date
LAHORE CANTT
Monday
13 Nov 2023
2ND ASSESSMENT TEST 2023
PHYSICS – I
TEACHER:
[FEDERAL BOARD]
TOTAL MARKS: 25
ROLL NO.
NAME
TEST
CH#1-4
CLASS
SECTION
TIME
1 HOUR
SECTION – A (Marks 05)
[1 × 5 = 5]
Q.1 Encircle the correct option i.e. A / B / C / D. All parts carry equal marks.
1. When a force is applied on a body, which one of the following physical quantities will NOT change?
A.
Mass
B.
Velocity
C.
Position
D. Acceleration
2. Two vectors of 60 N and 35 N combined then correct answer can be:
A.
15 N
B.
20 N
C.
70 N
D. 100 N
Torque
D. Impulse
3. Change in momentum is called
A.
Force
B.
Acceleration C.
4. Escape velocity is independent of
A.
Mass
B.
Radius
C. Gravitational acceleration D. All of these
Earth
C.
5. Original source of tides is
A.
Sun
B.
Q2. Attempt ALL Short questions.
Moon
D. None of these
[Section - B]
[2 × 5 = 10]
1. When an arrow is shot from its bow, it has K.E. From where does it get the K.E?
2. Why we can hit a longer sixer in a cricket match rather than if we toss a ball for ourselves?
3. Why a particle experiencing only one force cannot be in equilibrium?
4. Explain work-energy principle for resistive medium.
5. Differentiate between conservative and non-conservative force with examples.
NOTE: Attempt Long question.
[Section - C]
[5+5 = 10]
Q3. (a) What is Projectile Motion? Derive the relations for (a) Time of flight (b) Range of projectile.
(b) Find the angle between two forces of equal magnitude such that the magnitude of their
resultant is also equal to either of them.