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Class 3 Exam  >  Class 3 Tests  >  Olympiad Test Level 1: Light, Sound and Force - Class 3 MCQ

Olympiad Test Level 1: Light, Sound and Force - Class 3 MCQ


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20 Questions MCQ Test - Olympiad Test Level 1: Light, Sound and Force

Olympiad Test Level 1: Light, Sound and Force for Class 3 2024 is part of Class 3 preparation. The Olympiad Test Level 1: Light, Sound and Force questions and answers have been prepared according to the Class 3 exam syllabus.The Olympiad Test Level 1: Light, Sound and Force MCQs are made for Class 3 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Olympiad Test Level 1: Light, Sound and Force below.
Solutions of Olympiad Test Level 1: Light, Sound and Force questions in English are available as part of our course for Class 3 & Olympiad Test Level 1: Light, Sound and Force solutions in Hindi for Class 3 course. Download more important topics, notes, lectures and mock test series for Class 3 Exam by signing up for free. Attempt Olympiad Test Level 1: Light, Sound and Force | 20 questions in 40 minutes | Mock test for Class 3 preparation | Free important questions MCQ to study for Class 3 Exam | Download free PDF with solutions
Olympiad Test Level 1: Light, Sound and Force - Question 1
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The sound occurs on burning of fire-crackers is–

Detailed Solution for Olympiad Test Level 1: Light, Sound and Force - Question 1
Firecrackers burn with a loud and unpleasant sound.
Olympiad Test Level 1: Light, Sound and Force - Question 2
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A boy hits a ball, the ball rolls on the ground for some time and soon it stops. Boy asked his father about the reason the ball stops due to

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When a moving object stops due to rubbing on a ground, it happens due to friction.

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Olympiad Test Level 1: Light, Sound and Force - Question 3
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Refer to the given figure. What type of force is being used in the figure?

Detailed Solution for Olympiad Test Level 1: Light, Sound and Force - Question 3
In the picture, you can see that a man is pushing a car, so it shows the push action of a force.
Olympiad Test Level 1: Light, Sound and Force - Question 4
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The form of energy that makes the objects visible
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Light is a form of energy which makes the object visible for us.
Olympiad Test Level 1: Light, Sound and Force - Question 5
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A ______ is a dark outline of an opaque object that blocks light coming from a source.
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A shadow is a dark outline of an opaque object that blocks light coming from a source.
Olympiad Test Level 1: Light, Sound and Force - Question 6
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Which of the following is NOT an example of the effect of force?
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Standing motorbike is a stationary object which does not show any effect of force.
Olympiad Test Level 1: Light, Sound and Force - Question 7
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Which among the following is a non-luminous object?
Detailed Solution for Olympiad Test Level 1: Light, Sound and Force - Question 7
Flower is a non-luminous object.
Olympiad Test Level 1: Light, Sound and Force - Question 8
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Choose the correct option

(i) Friction develops when two things come in contact.

(ii) Gravitational force pulls everything away from Earth.

(iii) Sound does not require any medium to travel.

(iv) Magnetic force is the pushing or pulling action of magnets.
Detailed Solution for Olympiad Test Level 1: Light, Sound and Force - Question 8

(i) True. Friction is the force that opposes motion between two surfaces that are in contact with each other.

(ii) False. Gravitational force is the force that pulls everything toward the center of the Earth.

(iii) False. Sound requires a medium to travel through, such as air, water, or solids.

(iv) True. Magnetic force is the force that is exerted by magnets and can either attract or repel other magnets or magnetic materials .

Therefore, the correct option is (i) and (iv).

Olympiad Test Level 1: Light, Sound and Force - Question 9
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Which among the following is the main source of light?
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Sun is the main source of light on Earth.
Olympiad Test Level 1: Light, Sound and Force - Question 10
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On the ______ side of the light source, Shadow is formed.
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Shadow is formed on the opposite side of the source of light.
Olympiad Test Level 1: Light, Sound and Force - Question 11
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Select the odd one out
Detailed Solution for Olympiad Test Level 1: Light, Sound and Force - Question 11
Burning candle, Bulbs and sun are luminous objects whereas Moon is a non-luminous object.
Olympiad Test Level 1: Light, Sound and Force - Question 12
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The force exerted by the earth to pull the object towards itself is called-
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The force exerted by the earth to pull the object towards itself is called Gravitational force.
Olympiad Test Level 1: Light, Sound and Force - Question 13
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Rohan wants a toy car to be in motion. He will apply-
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The force applied on a stationary object can make it move.
Olympiad Test Level 1: Light, Sound and Force - Question 14
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Which among the following activities show a pull action?
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Taking out a carrot from ground shows pull action and rest all shows push action.
Olympiad Test Level 1: Light, Sound and Force - Question 15
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Force changes the-
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Force can Make a stationary object move. It can stop a moving object. It can change the direction of a moving object. It can change the shape of an object. It can change the speed of a moving object.
Olympiad Test Level 1: Light, Sound and Force - Question 16
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Amit was saying something to Harish. But Harish could not hear him. Choose the medium through which sound does not reach to Harish
Detailed Solution for Olympiad Test Level 1: Light, Sound and Force - Question 16
Sound needs medium to travel.Sound can not travel in vacuum.
Olympiad Test Level 1: Light, Sound and Force - Question 17
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An ______ is caused by sound waves bouncing off objects.
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An Echo is produced when sound is reflected or bounced back towards the source. They are used to find the depth of the sea.
Olympiad Test Level 1: Light, Sound and Force - Question 18
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Picture shows an apple falling from an apple tree. Which force is shown in this picture.
Detailed Solution for Olympiad Test Level 1: Light, Sound and Force - Question 18

When an apple falls down on Earth, it happens due to gravitational force.

Olympiad Test Level 1: Light, Sound and Force - Question 19
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Choose the Incorrect Match
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Book is an opaque object that does not allow light to pass through it.
Olympiad Test Level 1: Light, Sound and Force - Question 20
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Light travels in a
Detailed Solution for Olympiad Test Level 1: Light, Sound and Force - Question 20
Light travels in a Straight line.
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