If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
750.0J
225.0J
75.0J
22.5J
Correct answer is C
K.E = P.E = mgh
= 0.3 x 10 x 100 - 0.3 x 10 x 75
= 75J
Which of the following propeties is not considered in choosing mercury as a thermomemetric liquid?
density
expansivity
conductivity
opacity
Correct answer is A
No explanation has been provided for this answer.
In the absence of gravitational force, the weight of the body is
its mass
zero
its density
its volume
Correct answer is B
No explanation has been provided for this answer.
The area under a velocity-time graph represents
final velocity attained
distance covered
acceleration
workdone
Correct answer is B
No explanation has been provided for this answer.
The property of a fluid that is used to determine its suitability as a lubricant is its
capillarity
viscosity
surface tension
relative density
Correct answer is B
No explanation has been provided for this answer.