Model Questions for Scientific Assistant (IMD) Exam (Paper-2) Physics - Set 7
Model Questions for Scientific Assistant (IMD) Exam (Paper-2) Physics - Set 7
Write and Discuss Your Answer with Q.No in Comment Box at the Bottom of Post.
1. An object’s mass is increasing while its acceleration is constant. The force applied to the object must---
a. be increasing b. be decreasing
c. stay the same
d. increase and then decrease
2. An object is moving in a circle with constant speed. The object has---
a. changing velocity and acceleration
b. zero acceleration
c. a constant acceleration
d. zero velocity
3. A man weighs 900 N, and is standing with his feet across three bathroom scales so his weight is equally shared among the three scales. The reading on each scale is---
a. 900 N
b. 2700 N
c. 300 N
d. 90 N
4. A quantity such as mass or speed that has magnitude but no direction is---
a. Vector
b. Vector quantity
c. Scalar quantity
d. Resultant
5. A quantity such as weight or velocity that has magnitude as well as direction is---
a. Vector
b. Vector quantity
c. Scalar quantity
d. Resultant
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6. An arrow drawn to represent a vector quanitity. The length of the arrow is proportional to the magnitude of the vector quantity---
a. Vector
b. Vector quantity
c. Scalar quantity
d. Resultant
7. The resulting vector when two or more vectors are added---
a. Vector
b. Vector quantity
c. Scalar quantity
d. Resultant
8. A pebble flies up and hits the windshield of a truck travelling at 80 km/hr. The force of the impact is---
a. greater on the pebble
b. lesser on the pebble
c. greater on the pebble than on the windshield, if the pebble shatters
d. the same on pebble and on the windshield
9. As a meteor falls towards earth, it is attracted by earth’s gravity. What is the reaction to this force?
a. air resistance
b. earth is attracted by the meteor’s gravity
c. the earth’s inertia
d. the earth’s gravity
10. A person who has a mass of 100 kg is attracted to the earth by a force of about 1000 N. The force with which this person attracts the earth is---
a. zero
b. much smaller
c. 1000 N
d. 2000 N
