Units and Measurements — Physics STD 11 Science — Question

What is the relation between the coefficient of linear expansion and coefficient of volume expansion?

Write the relationship between co-efficient of volume expansion and co-efficient of linear expansion.

The equilibrium distance of molecules of solid is of what order?

A monkey climbs up a slippery pole for 3 seconds and subsequently slips for 3 seconds. Its velocity at time t is given by v(t) = 2t(3 - t); 0 < t < 3 and v(t) = -(t - 3)(6 - t) for 3 < t < 6s in m/s. It repeats this cycle till it reaches the height of 20m.
At what time is its acceleration maximum in magnitude?

State, for each of the following physical quantities, if it is a scalar or a vector : volume, mass, speed, acceleration, density, number of moles, velocity, angular frequency, displacement, angular velocity.

What is surface tension and what is its unit?

Read each statement below carefully and state with reasons, if it is true or false:
The magnitude of a vector is always a scalar,

A piece of lead is hammered. Does its internal energy increase? Does the heat enter the lead from outside?

What is the effect of non-sphericity of the earth on the value of 'g'?

How many newtons make one kg wt?