Question

C Answer the following questions
Name the types of motion
2. What is oscilatory motion? Give at least two examples
3. Why do we say that the wheel of a car undergoes combined motion?
4. What is random motion?
5. What is meant by a simple pendulum? 6. What is the acceleration of a free falling object called?​

Answer 1

Answer:

2.Oscillatory motion is defined as the to and fro motion of the body about its fixed position. Oscillatory motion is a type of periodic motion. Examples of oscillatory motion are vibrating strings, swinging of the swing etc.

3.A wheel undergoes both rotational motion and translational because it moves from place to place but also moves around in a circle to do so.

4.Random motion - when an object in motion with no specific path and changes its motion suddenly.

5. an ideal pendulum consisting of a point mass suspended by a weightless inextensible perfectly flexible thread and free to vibrate without friction —distinguished from physical pendulum.

6. The acceleration of free-falling objects is called the acceleration due to gravity, since objects are pulled towards the center of the earth.

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Answer 2

$\large\bf\underline\red{Answer \: :-}$

1) Name the types of motion.

• Rotatory motion
• rotatory motion
• oscillatory motion
• uniform circular
• periodic motion
• rectilinear motion
• oscillatory motion
• periodic motion.

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2. What is oscilatory motion? Give at least two examples.

A motion repeating itself is referred to as periodic or oscillatory motion. An object in such motion oscillates about an equilibrium position due to a restoring force or torque. ... This motion is important to study many phenomena including electromagnetic waves, alternating current circuits, and molecules.

Examples :

• The motion of the pendulum is the example of oscillatory motion. In the pendulum watch, its pendulum moves to and fro over a fixed potion which is the equilibrium potion.
• Alternating current is an electrical example of oscillatory motion.

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3. Why do we say that the wheel of a car undergoes combined motion ?

A wheel undergoes both rotational motion and translational because it moves from place to place but also moves around in a circle to do so.

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4. What is random motion?

Random motion is defined as the motion of an object with no specific path but undergoes sudden change in its motion.

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5. What is meant by a simple pendulum ?

an ideal pendulum consisting of a point mass suspended by a weightless inextensible perfectly flexible thread and free to vibrate without friction —distinguished from physical pendulum.

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6. What is the acceleration of a free falling

object called ?

The acceleration of free-falling objects is called the acceleration due to gravity, since objects are pulled towards the center of the earth. The acceleration due to gravity is constant on the surface of the Earth and has the value of 9.80 m/s².

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