Student Questions

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Showing: Class 9 (668 questions)

by GIANSH GUPTA KHUNDKER · Class 9

Two triangles are congruent if two angles and the included side of one triangle are equal to the corresponding two angles and the included side of the other. Which rule is this? a) SSS b) SAS c) ASA d) RHS

Maths Triangles 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

The persistence of sound in a big hall due to repeated reflection is called: a) Echo b) Resonance c) Reverberation d) Rarefaction

Science Sound 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

When a sound wave travels through air, it causes the air to form regions of high density and pressure, known as: a) Rarefaction b) Reflection c) Compression d) Frequency

Science Sound 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Sound waves in air are an example of: a) Transverse waves b) Longitudinal waves c) Electromagnetic waves d) None of the options

Science Sound 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

In a circle, if a perpendicular is drawn from the center to a chord, what does it do to the chord? a) Triples the length of the chord. b) Bisects the chord (cuts it into two equal halves). c) Makes the chord parallel to the diameter. d) Increases the distance of the chord from the center.

Maths Circles 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

According to the law of conservation of energy: a) Energy can be created b) Energy is always lost c) Energy transforms but total remains constant d) Energy decreases over time

Science Work and Energy 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Which of the following is not a unit of energy? A. Joule B. Watt-hour C. Newton-meter D. Kilowatt

Science Work and Energy 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

When a body falls freely towards the Earth, its total energy: A. Increases B. Decreases C. Remains constant D. First increases then decreases

Science Work and Energy 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

When a force is applied to an object, work is done only if: A. The object does not move. B. The force is perpendicular to displacement. C. The object moves in the direction of the force. D. The force is less than 1 Newton.

Science Work and Energy 0 1 answers 100%
by GIANSH GUPTA KHUNDKER · Class 9

The gravitational force between two objects is directly proportional to: a) The sum of their masses b) The product of their masses c) The distance between them d) The square of the distance between them

Science Gravitation 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

A fielder giving a swing while catching a ball is an example of: a) First law of motion b) Second law of motion c) Third law of motion d) None of these

Science Force and Laws of Motion 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

A passenger in a moving car is pushed to the side when the car takes a sharp turn. This is due to: a) Inertia of rest b) Inertia of motion c) Inertia of direction d) Acceleration

Science Force and Laws of Motion 0 1 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

A goalkeeper in a football game pulls his hands backward after catching the ball to: a) Exert a larger force on the ball b) Increase the momentum of the ball c) Decrease the rate of change of momentum d) Increase the rate of change of momentum

Science Force and Laws of Motion 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Inertia of an object tends to cause the object to: a) Increase its speed b) Decrease its speed c) Resist a change in its state of motion d) Decelerate

Science Force and Laws of Motion 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Which law of motion gives the qualitative definition of force? a) Newton’s First Law b) Newton’s Second Law c) Newton’s Third Law d) Law of Conservation of Momentum

Science Force and Laws of Motion 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

What does the slope of the velocity-time graph represent? (a) Distance (b) Speed (c) Acceleration (d) Displacement

Science Motion 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

A body moving in a straight line has uniform motion if it travels _____ distance in equal time intervals. (a) Equal (b) Unequal (c) Zero (d) Irregular

Science Motion 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Angles in the same segment of a circle are: a) Complementary b) Supplementary c) Equal d) Unequal

Maths Circles 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

A chord of a circle is equal to the radius of the circle. What is the angle subtended by this chord at the center?

Maths Probability 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Choose the synonym for "Bulky" A. Tiny B. Massive C. Light D. Slim

English Synonyms 0 0 answers 0%

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