Question : When iron rusts, its weight

Option 1: decreases

Option 2: increases

Option 3: remains the same

Option 4: first increases and then decreases

Question : If the force applied on the object is in the direction of its motion, the speed of the object _____.

Option 1: increases

Option 2: stops

Option 3: decreases

Option 4: no effect

Question : Heart attack occurs due to :

Option 1: Bacterial attack on the heart

Option 2: Stopping of heart beat

Option 3: Lack of blood supply to the heart itself

Option 4: Impairment of heart's working due to unkhown reasons

Question : If the force applied on the object is in the direction opposite to the direction of motion, the speed of the object_____.

Option 1: increases

Option 2: stops

Option 3: decreases

Option 4: no effect

Question : The law of demand states that:

Option 1: if the price of a good increases, the demand for that good decreases

Option 2: if the price of a good increases, the demand for that good increases

Option 3: if the price of a good increases, the quantity demanded of that good decreases

Option 4: if the price of a good increases, the quantity demanded of that good increases