Advertisements
Advertisements
Question
Advertisements
Solution
Precautions to be taken to measure the mass of a body using beam balance are
(a). The beam must be gently lowered before adding or removing weights from the pan.
(b). The weights should not be carried with bare hands to avoid the change in weights due to moisture and dust particles from the surrounding.
(c). The lever should be turned gently, in order to prevent knife-edges from chipping.
(d). Never keep the wet or hot objects on the pan.
(e). The weights should be placed into the weight box after use.
(f). Whenever you are near the actual weight, you should carefully try the weights in the descending order.
APPEARS IN
RELATED QUESTIONS
How is nanometer related to Angstrom?
Complete the following: 1 light year =……….m
Complete the following: 1 µs =……….s
Fill in the blank:
The unit is which we measure the quantity is called ________.
Define standard meter.
State two conditions for a beam balance to be true.
Put the symbol in the box given below.
50 g `square` 340 g
Cross word puzzle.
Clues – Across
- SI unit of temperature;
- A derived quantity;
- Mass per unit volume;
- Maximum volume of liquid a container can hold
Clues – Down
- A derived quantity
- SI unit of volume
- A liquid denser than iron
- A unit of length used to measure very long distances
Questions based on Higher Order Thinking Skills:
There are three spheres A, B, C as shown below. Sphere A and B are made of same material. Sphere C is made of a different material. Spheres A and C have equal radii. The radius of sphere B is half that of A. Density of A is double that of C.
Now answer the following questions.
- Find the ratio of masses of spheres A and B.
- Find the ratio of volumes of spheres A and B.
- Find the ratio of masses of spheres A and C.
Define measurement.
