Chapter 4 Force and Motion - Test 1

1. A glass of water placed on a table remains there unless a force is applied to remove it

1) False
2) True
2. The mass of a body is a measure of its inertia

1) False
2) True
3. When a bullet is fired from a gun the bullet moves in the forward direction while the gun recoil in the backward direction. The forward motion of the bullet is reaction

1) True
2) False
4. From scientific point of view weight and mass are same quantities

1) False
2) True
5. Mass is scalar quantity

1) True
2) False
6. Practically mass is measured by an ordinary balance

1) True
2) False
7. The weight is a scalar quantity

1) True
2) False
8. The value of weight is same every where

1) True
2) False
9. Tension in the string acts downward

1) False
2) True
10. Regarding a moving object greater is the mass the greater will be the quantity of motion and greater is the velocity ,the greater will be the quantity of motion

1) False
2) True
11. Momentum is a vector quantity

1) False
2) True
12. Total momentum of the two balls will not be the same as the total momentum before collision.

1) False
2) True
13. Law of conservation of momentum is true not only for bigger bodies but also for atoms and molecules

1) False
2) True
14. In equation v2= -m1/m2 x v1 the negative sign indicates that the gun moves in the direction opposite to that of the bullet

1) True
2) False
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