Question

Write two precautions to be observed while using a beam balance.

Answer 1

Beam balance:

1. Physical balance is used to measure the mass of the body.
2. It is also called beam balance.
3. It contains a pivoted horizontal lever having the same lengths as the arms.

Precautions to be observed while using a beam balance:

1. The weights should be carried with forceps.
2. They should not be carried with bare fingers to avoid the change in their weight due to the presence of moisture and dust particles.
3. Wet and hot objects should not be kept on the pan.
4. When near the actual weight, the weights should always be tried in descending order.
5. The beam should be lowered each time before adding or removing weights from the pan.

Hence, these are the precautions to be considered while using beam balance.