NSO Class 3 Sample paper on Light, Sound and Force

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This is the first worksheet in the "NSO Class 3 Sample paper on Light, Sound and Force" series by Olympiadtester.  

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These NSO Class 3 sample papers are the preferred learning material to prepare for all Science Olympiad exams like National Science Olympiad (NSO), Internatational Olympiad of Science (iOS), ICAS/IAIS Science, NSTSE, ASSET Science and National interactive Science Olympiad. 

NSO Class 3 Sample paper on Light, Sound and Force - Question 1

Observe the given pictures carefully and select the correct conclusion regarding liquids X, Y and Z.

 

ic: NSO Class 3 Sample paper on Light, Sound and Force - Question 1

Liquid X is transparent and liquid Z is translucent
Liquid Y is opaque and liquid Z is translucent. 
Liquid X is transparent and liquid Z is opaque
Liquid Y is transparent and liquid Z is opaque.

      NSO Class 3 Sample paper on Light, Sound and Force - Question 2

      Sita placed a cylinder vertically to the light source as shown in the diagram. The shadow formed on the screen is a _________________.

      ic: NSO Class 3 Sample paper on Light, Sound and Force - Question 2

       Rectangle / Triangle / Circle / Oval

          NSO Class 3 Sample paper on Light, Sound and Force - Question 3

          The position of the Sun changes at different times of the day . These changes in the positions of the Sun cause changes in the lengths of the shadows formed on Earth.

          A, B, C and D are the different shadows formed on the ground by the stick . 

          Shadow D is most likely formed at ________________.
          ic: NSO Class 3 Sample paper on Light, Sound and force - Question 3
          Early morning Late morning Noon Early afternoon 

            NSO Class 3 Sample paper on Light, Sound and Force - Question 4

            Mohan set up an experiment to form 2 shadows of an object  on a screen as shown below.
            Identify the object which would have formed the two shadows. 
            ic: NSO Class 3 Sample paper on Light, Sound and Force - Question 3

            Object A Object B
            Object C Object D

              NSO Class 3 Sample paper on Light, Sound and Force - Question 5

              Sarita set up an experiment with a sheet of glass X, a cardboard cloud, a light source and a screen  as shown in the diagram .
              Which of the following shadows would she be seeing on the screen ?

               

              ic: NSO Class 3 Sample paper on Light, Sound and Force - Question 5

                NSO Class 3 Sample paper on Light, Sound and Force - Question 6

                At 8 a.m. Seema observed that the lamp post outside his house formed a shadow at the position shown in the diagram .

                Which of the following diagrams shows the shadow of the lamp post formed in the late evening ?
                 
                ic: NSO Class 3 Sample paper on Light, Sound and Force - Question 6

                  NSO Class 3 Sample paper on Light, Sound and Force - Question 7

                  Meena took a cardboard box closed from all sides and made a hole on the left side of the box as shown below. 
                  A ball was placed in the position shown in the diagram. What would Meena see when she looked into the box through the hole indicated on the diagram? 

                  ic: NSO Class 3 Sample paper on Light, Sound and Force - Question 7

                    NSO Class 3 Sample paper on Light, Sound and Force - Question 8

                    Study the classification chart below .

                    X and Y are two types of light sources as seen in the chart . Torch can be put under which heading ?

                    ic: NSO Class 3 Sample paper on Light, Sound and Force - Question 8

                      NSO Class 3 Sample paper on Light, Sound and Force - Question 9

                      Sia and Riya had  two springs X and Y. They carried out an experiment to find out which spring was stronger. They hung different weights to each of the springs and measured the new lengths of each spring .The results of the experiment are shown in the graph below .

                      Spring X can be stretched more than Spring Y. (T/F)

                       

                      ic: NSO Class 3 Sample paper on Light, Sound and Force - Question 09

                       

                        NSO Class 3 Sample paper on Light, Force and Sound - Question 10

                        A marble was pushed through with the same force on four types of surfaces X, Y, Z and W . The table below shows the distance traveled by the marble before it came to a stop .

                        Which of the following  set of surfaces best matches the distances recorded above?

                         

                        ic: NSO Class 3 Sample paper on Light, Sound and Force - Question 10

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