Question

MODEL ACTIVITY TASKS
CLASS-IX
PHYSICAL SCIENCE
Write the answers to the following questions :
1.
Establish the relation between dyne and newton.
2.
A neutral atom has 2 electrons in its K shell, 8 electrons in its L shell and 2 electrons in its
M shell. Find the atomic number of the element. Write the symbol of the ion that will be
obtained if the electrons in the M shell are removed from the atom.
3.
How will you estimate the apparent volume of a drop of water using a measuring cylinder?
4.
Mention the shortcomings of Rutherford's model of an atom.
5.
A toy car was moving with a speed of 20 cm/s. Its speed became 50 m/s after traversing a
distance of im. Calculate the acceleration of the car.​

Answer 1

Answer:

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