DIYA ACADEMY OF LEARNING Class Test - II 2024-25 Science PDF

DIYA ACADEMY OF LEARNING Subject: SCIEN Class TEST - II Grade: 6 2024-25 Max. Marks: 20 Duration: 40 MINS Section A I. Choose the correct answer 5m 1. The movement of earth around the sun is an...

DIYA ACADEMY OF LEARNING Subject: SCIEN Class TEST - II Grade: 6 2024-25 Max. Marks: 20 Duration: 40 MINS Section A I. Choose the correct answer 5m 1. The movement of earth around the sun is an example of (a) Oscillatory motion (b) Non-Periodic Motion (c) Translatory motion (d) Periodic motion 2. What is the name of motion when an object repeats its motion after some time? (a) Curvilinear motion (b) Periodic motion (c) Rectilinear motion (d) Circular motion 3. What kind of motion a bullet shows when fired from a gun? (a) Non-periodic motion. (b) Linear motion (c) Random motion (d) Translatory motion  4. Which of the following statements is correct? (a) Motion of soldiers in march past is a periodic motion. (b) Motion of a train along a curved track on hills is the example of curvilinear motion. (c) Every periodic motion is also an oscillatory motion. d) Hockey players running after a ball is a combined motion. 5. Which of the following statements is incorrect? (a) Motion of a vehicle on a straight road is not rectilinear motion. (b) Motion of honeybees is an example of random motion. (c) Rotation of Earth is periodic motion II. Assertion Reason 5m 1. Assertion: The train follows in the rectilinear motion. Reason: It follows a straight path. 2. Assertion Ferris wheel follows rotational motion. Reason :The roller coaster is in curvilinear motion. 3. Assertion : When an object moves from the reference point it is in motion. Reason: Reference point is the point where the motion stops. 4. Assertion: Blades of mixer grinder while working follow circular motion. Reason :They have a fixed axis around which they rotate. 5. Assertion: Movement of the rocking chair is periodic motion as well as oscillatory motion. Reason: All oscillatory motions are periodic Section B III. Give reasons to justify your answer with and example- 4m 1. All oscillatory motions are periodic but not all periodic motions are oscillatory. 2. Reference point helps to know if the object is in motion or not.  Section C - Case based questions IV. A tailor is working on a sewing machine. The sewing machine remains at the same location while its wheel moves with a circular motion. It also has a needle that moves up and down continuously, as long as the wheel rotates. 3m 1. Select the one that remains at rest when you were making the above observation. (a) Tailor (b) Sewing machine (c) Both tailor and sewing machine (d) None of the above is correct 2. In this observation the circular motion was observed in (a) Wheel of machine (b) Needle of machine (c) Both (a) and (b) (d) None of the above is correct 3. The up and down motion of the needle of sewing machine can be classified as (a) rotatory motion (b) circular motion (c) periodic motion (d) None of these V. Boojho was riding in his bicycle along a straight road. He classified the motion of various parts of the bicycle as (a) rectilinear motion (b) circular motion and (c) both rectilinear as well as circular motion. Can you list one part of the bicycle for each type of motion? Support your answer with reason. 3m