Multiple choice question XIX — task. Science CBSE, Class 9.

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1. What is the momentum of an object of mass

$m$ , moving with a velocity

$v$ ?

$(mv)^2$
$mv^2$
$\frac{1}{2}\ mv^2$
$mv$

2. One way that you can recognize that a force is acting on an object:

(i) is to note any change in the object’s state of motion.
(ii) is to determine its mass at different locations.
(iii) is to measure the instantaneous velocity of a moving object.
(i) and (iii)

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