MCQ-MYP YEAR 5

WHICH PRESSURE IS GREATER UNKNOWN PRESSURE OR ATMOSPHERIC PRESSURE? WHY?. ATMOSPHERIC PRESSURE IS GREATER AS LIQUID IS RISING MORE ON THIS SIDE. ATMOSPHERIC PRESSURE IS SAME AS UNKNOWN PRESSURE AS THERE IS DIFFERENCE IN LEVEL. ATMOSPHERIC PRESSURE IS LESS AS UNKNOWN (GAS) PRESSURE HAS PUSHED THE LIQUID MORE. UNKNOWN PRESSURE IS LESS AS THE FLUID HAS CREATED A GAP OF HEIGHT h.

WHICH STATEMENT IS TRUE REGARDING DENSITY OF LIQUIDS W AND Y?. W=Y. Y<W. W<Y. Y=2W.

WHEN IS WORK DONE NEGATIVE?. IT CAN NEVER BE NEGATIVE. WHEN OBJECT MOVES IN DIRECTION OF FORCE APPLIED. WHEN DISPLACEMENT IS PERPENDICULAR TO FORCE APPLIED. WHEN DISPLACEMENT IS OPPOSITE TO FORCE APPLIED.

IF THIS WEIGHTLIFTER IS LIFTING 2000KG TO 1.5 M HEIGHT IN 5 SECONDS THEN WHAT IS THE WORK DONE? [g=10 m/s^2). 30000N. 3000N. 30N. 300000N.

WHAT IS THE LEAST COUNT OF INSTRUMENT SHOWN?. 10 A. 25A. 1A. 5A.