Question

Distinguish between the following.
1. Circular and rotatory motion
2. Oscillatory and vibratory motion
3. Scalar and vector quantities
4. Uniform and non-uniform velocity
5. Mass and weight​

Answer 1

Answer:

1.For something to be 'circular motion,' it just has to move in a circle. For example, a toy train on a circular track has circular motion. For something to have 'rotational motion,' it has to actually have something that it's rotating around (called an axis).

2.oscillatory motion means tro and fro movement of body about its mean position. ... where as vibratory motion can be in all direction. vibratory motion is the physical change brought about due to movement of body. example for oscillatory motion : movement if swing.

3.The quantity is either a vector or a scalar. These two categories can be distinguished from one another by their distinct definitions: Scalars are quantities that are fully described by a magnitude (or numerical value) alone. Vectors are quantities that are fully described by both a magnitude and a direction.

4.Uniform Velocity means in a certain limit a body is moving with same speed. And non- uniform Velocity happens when body is moving with different speed.

5.In common usage, the mass of an object is often referred to as its weight, though these are in fact different concepts and quantities. In scientific contexts, mass is the amount of "matter" in an object (though "matter" may be difficult to define), whereas weight is the force exerted on an object by gravity.[1] In other words, an object with a mass of 1.0 kilogram weighs approximately 9.81 newtons on the surface of the Earth, which is its mass multiplied by the gravitational field strength. The object's weight is less on Mars, where gravity is weaker, and more on Saturn, and very small in space when far from any significant source of gravity, but it always has the same mass.

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