Tag: physics

Quizzes (598) Questions (13441)

Questions Related to physics

Multiple choice physics measurements and units measuring mass measurement of mass measuring instruments

The mass at the resting point gives the correct mass of the body, : 

  1. if the resting point of a physical balance coincides with the zero resting point

  2. if the resting point of a physical balance coincides with a non-zero resting point

  3. if the resting point of a physical balance is tilted

  4. none of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The mass of the resting point gives the correct mass of the body if the resting point of a physical balance coincides with the zero resting point.

Multiple choice physics measurements and units measuring mass measurement of mass measuring instruments

A balance to the true, must satisfy this condition: 

  1. Both arms must be of equal lengths.

  2. Both arms must be made of same material.

  3. Both arms must be of same colour.

  4. Both pans must be of same mass.
Reveal answer Fill a bubble to check yourself
A,B,D Correct answer
Explanation

The conditions that a true balance must satisfy are that both arms must have equal lengths made up of same material and mass of the both pans must be same. Colour of arms has nothing to do with the measurement of mass.

Multiple choice physics measurements and units measuring mass measurement of mass measuring instruments

State whether given statement is True or False.
When a weight is hung on a spring, the spring's extension is proportional to the weight.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Spring balance is used to measure the weight of the object. To do so, the object is hung on the spring which in result stretches the spring. The spring's extension is proportional to the weight which gives the weight of the object.

Multiple choice physics measurements and units measuring mass measurement of mass measuring instruments

State whether given statement is True or False.
Under no-load condition, the pointer of the spring balance must point at the zero mark of the scale. 

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The above statement is true that the pointer of the spring balance must point at the zero mark of the scale when no load is applied to it.