Test Chapter MOTION IN PLANE
Subject: Physics Total
Marks: 20
Class: XI Max
time: 30 minutes
1. What is the direction of centripetal
force when particle is following a circular path? (1)
2. Write
differences between scalars and vectors. (1)
3. Draw
displacement time graph for constant velocity and at zero velocity. (1)
4. Define unit
vector and null vector. (1)
5. What is the
angle between two forces of 2N and 3N having resultant 4N. (2)
6. At what range will a radar set show a
fighter plane flying at 4 km above its centre and at distance of 6 km from it? (2)
7. A cricketer hits a cricket ball straight up into the air. The cricket
ball has an initial velocity of 20 m·s−1.
(a) What height does the ball reach before it stops to fall
back to the ground?
(b) How long has the ball been in the air
for?
(2)
8. A ball is thrown vertically upwards and
then it returns to the thrower. Is it a projectile? Explain?
Draw trajectory of projectile
motion of soccer ball being kicked.
(2)
9. Pick out the only vector quantity in the following list:
Temperature, pressure, impulse, time, power, total path length, energy,
gravitational potential, coefficient of friction, charge. (2)
10. What
is a uniform circular motion? Explain the terms time period, frequency and
angular velocity. Establish relation between them. (3)
11. (a) Define time of flight and horizontal
range?
(b) From a certain height above the ground a stone A is
dropped gently.
Simultaneously another stone B is fired horizontally.
Which of the two stones will arrive on the ground earlier? (3)
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