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Test: Light, Sound and Force - 1


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10 Questions MCQ Test Science for Class 3 | Test: Light, Sound and Force - 1

Test: Light, Sound and Force - 1 for Class 3 2022 is part of Science for Class 3 preparation. The Test: Light, Sound and Force - 1 questions and answers have been prepared according to the Class 3 exam syllabus.The Test: Light, Sound and Force - 1 MCQs are made for Class 3 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Light, Sound and Force - 1 below.
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Test: Light, Sound and Force - 1 - Question 1

Select the odd one out.

Detailed Solution for Test: Light, Sound and Force - 1 - Question 1

Sun, table lamp and torch are luminous objects as they give light of their own, Moon on the other hand is non-luminous object as it shines by reflecting sunlight.

Test: Light, Sound and Force - 1 - Question 2

Ritu cannot hear what Megha is saying, X must be ______.

Detailed Solution for Test: Light, Sound and Force - 1 - Question 2

Ritu cannot hear Megha, because sound waves made by Megha are not reaching Ritu through X. Sound waves can travel through solid, liquid and gas but not vacuum. Thus, X can be vacuum.

Test: Light, Sound and Force - 1 - Question 3

Sahil shone a torch and blew a horn at the same time, while standing at 15m distance from Amit. Amit will _______.

Detailed Solution for Test: Light, Sound and Force - 1 - Question 3

Sound waves travel slower than light waves thus, Amit will first see the light and then hear the sound.

Test: Light, Sound and Force - 1 - Question 4

X is a force that works in the opposite direction of movement of an object in contact with a surface. It is _____.

Detailed Solution for Test: Light, Sound and Force - 1 - Question 4

Friction is a force between the surface of movement and the moving object. It opposes motion and works in the opposite direction of movement.

Test: Light, Sound and Force - 1 - Question 5

Look at the picture and select the correct option regarding it.

Detailed Solution for Test: Light, Sound and Force - 1 - Question 5

The force of gravity applied by the Earth is acting on the book at this time.  

Test: Light, Sound and Force - 1 - Question 6

The object shown here, does not cast a shadow. It is most likely made up of X material. X could be

Detailed Solution for Test: Light, Sound and Force - 1 - Question 6

Metal and ceramic are opaque materials, hence cast a shadow when light rays fall on them. Frosted glass is translucent hence it does not allow all light rays to pass through it hence, it also casts a light shadow. Transparent materials like clear plastic sheet allow all the light to pass through them and do not cast a shadow.

Test: Light, Sound and Force - 1 - Question 7

Select the odd one out on the basis of type of mechanical force involved.

Detailed Solution for Test: Light, Sound and Force - 1 - Question 7

Opening of refrigerator door, playing tug of war and taking out water from well using rope attached to bucket, require pull forces however hitting a cricket ball with a bat require push force.

Test: Light, Sound and Force - 1 - Question 8

Four boys rolled oil drums of the same weight and size up the ramps of different heights as shown here. Which one of them put the most effort?

Detailed Solution for Test: Light, Sound and Force - 1 - Question 8

The more the height of the ramp, the more is the effort required to roll up an oil drum.

Test: Light, Sound and Force - 1 - Question 9

The given diagram shows a fishing boat which sends out ultrasound waves that return after a few seconds. Select the correct statement regarding this.

Test: Light, Sound and Force - 1 - Question 10

Aman went to watch a football match. He wrote his experience on a picture card as shown here.
His father explained that it is the force applied on the football which causes it to _____.

Detailed Solution for Test: Light, Sound and Force - 1 - Question 10

A force is a push or a pull that can make a stationary object move, change the speed and direction of moving object and stop a moving object.

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