Eamcet TEst key
1.
2.
3.
4.
5.
6. If the magnitude of average velocity and average speed over an interval
of time is the same, then
1. The particle must move with zero acceleration
2. The particle must move with uniform acceleration
3. The particle must move with non-uniform acceleration
4. The particle must move in a straight line without turning back
Answer: 4
7. One car moving on a straight road covers one-third of the distance with a
speed of 20 m/s, another one-third with a speed of 40 m/s, and the next
one-third with a speed of 60 m/s, then the average speed of the car is:
1. 2.7 m/s
2. 40 m/s
3. 31 m/s
4. 33 m/s
Answer: 1
8. A body starts to fall freely under gravity. The distances covered by it in
1st , 2nd & 3rd second are in ratio:
1. 1:3:5
2. 1:2:3
3. 1:4:9
4. 1:5:6
Answer: 1
9. A body is thrown vertically up from the ground. It reaches a maximum
height of 125m in 5 sec After that time it will reach the ground from the
maximum height position. (ignore air drag)
[Pb. PMT 2000]
1. 1.2 sec
2. 5 sec
3. 10 sec
4. 25 sec
Answer: 1
10.Answer: (a) None of these Explanation: When any given body travels with a
constant acceleration it is supposed to be in a uniform motion.
11. Answer: (a) equal to or less than 1
Explanation: As we know that the displacement is the shortest distance between
two points. Thus distance may be equal to, or greater than, displacement. Hence,
the ratio of displacement to distance is always equal to or less than 1
12. A car starts from rest and accelerates uniformly at a rate of 4 m/s². How much time will
it take to cover a distance of 100 meters?
(a) 5 seconds
(b) 10 seconds
(c) 25 seconds
(d) 20 seconds
Answer: (b) 10 seconds
13.Assertion (A): If the speed of a particle is never zero then it may have
zero average speed.
Reason (R): The average speed of a moving object in a closed path is zero.
1. Both Assertion and Reason are correct and the Reason is a correct
explanation of the Assertion.
2. Both Assertion and Reason are correct but Reason is not a correct
explanation of the Assertion.
3. The Assertion is correct but the Reason is incorrect.
4. Both the Assertion and Reason are incorrect.
Answer: 4
14.The velocity-time curve for a body projected vertically upwards is:
1. Parabola
2. Ellipse
3. Hyperbola
4. Straight line
Answer: 4
15.
16.
17.A particle is moving with a constant speed along a straight-line path. A force is
not required to
a. change its direction
b. decrease its speed
c. keep it moving with uniform velocity
d. Increase its momentum
Answer: (c) keep it moving with uniform velocity
18.Which among the following can be zero when a particle is in motion for some
time.
a. Speed
b. Force
c. Time
d. Displacement
Answer: (d) Displacement
19.A body begins at rest and moves for t seconds at 2 m/s2 uniform acceleration.
If it causes a displacement of 16 m, the time of t is
(a) 4 s
(b) 3 s
(c) 6 s
(d) 8 s
Answer: option a is the correct answer as because when we put the values as
S=16,a=2 and u=0 in the equation S=ut + 1/2 at2 , we get t=4.
20.A body covers 16, 18, 20, 22 meters in 5th, 6th, 7th and 8th seconds
respectively. Which of the following statements is true about the body?
a. The body moves with a uniform velocity from rest
b. The body from rest moves with uniform acceleration
c. The body moves with an initial velocity and moves with uniform acceleration
d. The body moves with an initial velocity and then moves with uniform velocity
Answer: (c) The body moves with an initial velocity and moves with uniform
acceleration
