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Model Questions for Scientific Assistant (IMD) Exam (Paper-2) PHYSICS - Set 4

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1. If the object is in equilibrium, the sum of all the forces acting on the object is zero called---

(A) Inertia
(B) Force
(C) Mechanical Equilibrium
(D) Equilibrium rule

2. A push or a pull on an object is---

(A) Inertia
(B) Force
(C) Mechanical Equilibrium
(D) Equilibrium rule

3. The tendency of objects to resist changes in motion called---

(A) Inertia
(B) Force
(C) Mechanical Equilibrium
(D) Equilibrium rule

4. An object is in a state where there is no change in motion called---

(A) Inertia
(B) Force
(C) Mechanical Equilibrium
(D) Equilibrium rule

5. An object falls out of an airplane, and falls freely downward Its---

(A) mass increases
(B) acceleration increases
(C) velocity increases
(D) gravity increases

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6. You brake suddenly. The passengers in your car lurch forward. This demonstrates called---

(A) gravity
(B) mass
(C) weight
(D) inertia

7. A truck is travelling at 10 m/s. A package drops off the truck. Neglecting air resistance, as the package hits the ground, its horizontal speed is---

(A) 0 m/s
(B) 10 m/s
(C) 20 m/s
(D) depends on the height of the truck

8. A truck is decelerating. A package is dropped from the midpoint of the ceiling of the truck’s storage compartment. The package hits the floor---

(A) immediately beneath the midpoint of the ceiling
(B) closer to the back of the truck than the midpoint
(C) closer to the front of the truck than the midpoint
(D) all of the above

9. You tie a rock to a string and whirl it in a horizontal circle. The string breaks. In the absence of gravity, the rock is---

(A) travels in a circle
(B) falls in a straight line down to the earth
(C) flies in a straight line vertically up into the air
(D) travels in a straight line horizontally away from you