Page 14 - Pra U STPM 2021 Penggal 1 - Physics

Physics Term 1 STPM Chapter 2 Kinematics

Quick Check 3

1. A body initially at rest moves with uniform 3. The velocity-time (v-t) graph of a vehicle
acceleration. Which graph best represents the travelling along a straight line is shown below.
variation of displacement s of the body with
time t?
A C 2
s s

t 0 t
0 Which of the following is the displacement-
time (s-t) graph of the vehicle?
B D A s C s
s s

0 t 0 t
t 1 t 2 t 3 t 1 t 2 t 3
0 t 0 t B s D s

2. A brick is dislodged from a tall building and
falls vertically under gravity. Which of the
following curves represents the variation of 0 t t t t 0 t t t t
its height h above the ground with time t if 1 2 3 1 2 3
air resistance is negligible?
A C 4. A tennis ball is released, it falls vertically to
h h the floor and bounces back. Taking velocity
upwards as positive. Which of the following
is the velocity-time (v-t) graph of the ball?
A v C v
+ +

0 t 0 t 0 t 0 t
– –
B D
h h
B v D v
+ +
0 t 0 t
– –
0 t 0 t

43

02 STPM PHY T1.indd 43 4/9/18 8:19 AM