Question

C.
Write two examples for each of the following:
1. Rectilinear motion
2. Curvilinear motion
3. Rotational motion
4. Periodic motion​

Answer 1

Answer:

1) Rectilinear motion

The use of elevators in public places is an example of rectilinear motion.

Gravitational forces acting on objects resulting in free fall is an example of rectilinear motion.

2. Curvilinear motion

The motion of a particle or object moving along a curved path is called curvilinear motion. Throwing paper airplanes, motion of a snake, motion of a basketball into the basket, etc., are some examples of curvilinear motion.

3. Rotational motion

A person performing a Somersault, is an example of rotational motion. When we open a cap of any soda bottle, it jumps up in the air because of pressure released and is an example of rotational motion. Fan moving in the house, table fan, hand blender's blades motion are all examples of rotational motion

4. Periodic motion​

Periodic motion, in physics, motion repeated in equal intervals of time. Periodic motion is performed, for example, by a rocking chair, a bouncing ball, a vibrating tuning fork, a swing in motion, the Earth in its orbit around the Sun, and a water wave.

                Hope I helped....

Answer 2

Answer:

rectillinear motion

(i) A train moving on a straight track. (ii) A car moving on a straight road. (i) A car taking a turn. (ii) A child going down a slide

curvillinear motion

1. Throwing the ball into the air in a curved way

2. Motion of a jet in curved path.

Rotarional motion

1. The blades of a fan

2. a spinning wheel.

periodic motion

1. a rocking chair

2. a bouncing ball