Model Questions for Scientific Assistant (IMD) Exam (Paper-2) PHYSICS - Set 5

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1. How fast an object is moving, without consideration of direction?

a. Speed
b. Velocity
c. Acceleration
d. Free fall

2. An object is falling under the influence of gravity, and with no air-resistance---

a. Speed
b. Velocity
c. Acceleration
d. Free fall

3. The rate at which velocity is changing with time?

a. Speed
b. Velocity
c. Acceleration
d. Free fall

4. A freely falling object started from rest. 2 seconds later, its speed is about---

a. 5 m/s
b. 10 m/s
c. 15 m/s
d. 20 m/s

5. A base ball is hit straight up into the air at a speed of 20 m/s. How long does it take to reach the high-point in its trajectory?

a. 1/2 seconds
b. 1 second
c. 2 seconds
d. 4 seconds

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6. Galileo used inclined planes to ____ the effective acceleration (of a rolling cylinder or ball) compared to earth’s gravity

a. increase
b. stop
c. decrease
d. keep the same

7. A baseball is hit vertically upward at 30 m/s. One second later its speed is about ____ vertically upward.

a. 30 m/s
b. 35 m/s
c. 40 m/s
d. 20 m/s

8. A ball is thrown upwards and caught once it comes back down. The speed of the ball as it returns and is caught is ___ if there is air resistance compared to if there were no air resistance.

a. greater
b. the same
c. double
d. lower

9. A falling object has reached a state where the force due to air-resistance balances the force due to gravity. So the object has stopped accelerating called---

a. Inertia
b. Mass
c. Weight
d. Terminal speed

10. When one object is sliding against another object, a resistive force opposes the motion?

a. Inertia
b. Mass
c. Weight
d. Friction

Answer

1. (a) 2. (d) 3. (c) 4. (d) 5. (c) 6. (c) 7. (d) 8. (d) 9. (d) 10. (d)

(EBOOK)  SSC Scientific Assistant (IMD) Exam Papers PDF Download

Study Kit for SSC Scientific Assistant (IMD) EXAM