Olympiad Test: Achievers Section


15 Questions MCQ Test Science Olympiad Class 8 | Olympiad Test: Achievers Section


Description
Attempt Olympiad Test: Achievers Section | 15 questions in 30 minutes | Mock test for Class 8 preparation | Free important questions MCQ to study Science Olympiad Class 8 for Class 8 Exam | Download free PDF with solutions
QUESTION: 1

Statement 1: A boy pushes a toy car on the floor. After reaching a distance, the car will be stopped without application of any visible force.

Statement 2: Frictional force is the force exerted by a surface when an object moves across the surface.

Solution:
QUESTION: 2

Statement 1: The atmospheric pressure changes from place to place and from tine to time.

Statement 2: The temperature and quantity of water vapour in air changes from place to place and time to time.

Solution:
QUESTION: 3

See the figure given below and find the position where static friction is maximum.

Solution:
QUESTION: 4

Statement 1: The phenomenon of the persistence of vision is employed in the cinematography.

Statement 2: The image formed on the retina of an eye persists for 1/16th of a second.

Solution:
QUESTION: 5

Which of the following suggestions should not be followed for the caring of eyes?

1. We should always read in dim light.
2. Always read at the normal distance.
3. Look at the sun for sometime, everyday in the morning.
4. We should work in dazzling light.

Solution:
QUESTION: 6

Directions : Fill in the blanks with the appropriate answers.

The speed of sound in steel is  __________ the speed of sound in air.

Solution:
QUESTION: 7

Directions : Fill in the blanks with the appropriate answers.

The sound is produced due to the ____________ in the medium.

Solution:
QUESTION: 8

Directions : Fill in the blanks with the appropriate answers.

__________ is the voice box at the upper end of the wind pipe.

Solution:
QUESTION: 9

Directions : Fill in the blanks with the appropriate answers.

Magnetic, electrostatic and gravitational forces are __________ forces.

Solution:
QUESTION: 10

Directions : Fill in the blanks with the appropriate answers.

__________ is a direct reading instrument which is used for measuring atmospheric pressure.

Solution:
QUESTION: 11

Which of the following is not an application of electroplating?

1. To give a shiny appearance to bath taps, bicycle handle bars, wheel rims etc.
​2. To prevent the food, kept in an iron can, to come into direct contact with iron.

Solution:
QUESTION: 12

Which of the following is the name of a constellation?

1. Great Dear
2. Little bear
3. Hunter

Solution:
QUESTION: 13

Find the correct arrangement of the following planets of solar system for their distances from the sun.

Solution:
QUESTION: 14

Which of the following is not true?

1. Metals in the pure state possess lusture.
2. Metals have low tensile strength.
3. Metals are non-sonorous.

Solution:
QUESTION: 15

An ideal fuel

1. Should burn at a moderate rate.
2. Should not produce any poisonous and irritating fumes during burning.
3. Should leave residue after burning.

Q. Which of the options goes with in line given in the question.

Solution:
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