The overall mood of the poem is profoundly inspirational, compassionate and uplifting. While the initial atmosphere is charged with high-stakes athletic competition followed by sudden distress, the unselfish reaction of the runners turns the mood into one of pure warmth and joy. The sight of all ninRead more
The overall mood of the poem is profoundly inspirational, compassionate and uplifting. While the initial atmosphere is charged with high-stakes athletic competition followed by sudden distress, the unselfish reaction of the runners turns the mood into one of pure warmth and joy. The sight of all nine athletes finishing together fills the reader with hope, admiration and faith in human kindness.
For more NCERT Solutions of Class 9 English Kaveri Chapter 5 Nine Gold Medals Question Answer (2026-27)
Statement (i) is False because work requires displacement in the direction of force. Statement (ii) is True because upward lifting force and displacement share the same direction. Statement (iii) is True because joule is the SI unit for both work and energy. Statement (iv) is False because a stationRead more
Statement (i) is False because work requires displacement in the direction of force. Statement (ii) is True because upward lifting force and displacement share the same direction. Statement (iii) is True because joule is the SI unit for both work and energy. Statement (iv) is False because a stationary stretched band stores potential energy, not kinetic energy. Statement (v) is True because energy transforms between forms.
For more NCERT Solutions of Class 9 Science Exploration Chapter 7 Work, Energy and Simple Machines Question Answer (2026-27)
For item one, work equals force multiplied by displacement in the direction of force. For item two, one joule of work occurs when a force of 1 newton moves an object by 1 metre. For item three, kinetic energy equals half m v square. For item four, gravitational potential energy equals m g h. For iteRead more
For item one, work equals force multiplied by displacement in the direction of force. For item two, one joule of work occurs when a force of 1 newton moves an object by 1 metre. For item three, kinetic energy equals half m v square. For item four, gravitational potential energy equals m g h. For item five, power is defined as the rate of doing work.
For more NCERT Solutions of Class 9 Science Exploration Chapter 7 Work, Energy and Simple Machines Question Answer (2026-27)
Statements (iii) and (iv) are correct. At the highest point of its vertical flight, the upward velocity of the ball becomes momentarily zero, causing its kinetic energy to drop to zero. Because the height is greatest, its gravitational potential energy reaches maximum. Statements (i) and (ii) are inRead more
Statements (iii) and (iv) are correct. At the highest point of its vertical flight, the upward velocity of the ball becomes momentarily zero, causing its kinetic energy to drop to zero. Because the height is greatest, its gravitational potential energy reaches maximum. Statements (i) and (ii) are incorrect because downward gravitational force and acceleration due to gravity g act continuously on the ball.
For more NCERT Solutions of Class 9 Science Exploration Chapter 7 Work, Energy and Simple Machines Question Answer (2026-27)
In (i) fuel chemical energy converts to kinetic and potential energy. In (ii) elastic potential energy converts to kinetic energy. In (iii) solar light energy transforms into chemical energy. In (iv) potential energy converts to kinetic energy. In (v) chemical energy converts to thermal and light enRead more
In (i) fuel chemical energy converts to kinetic and potential energy. In (ii) elastic potential energy converts to kinetic energy. In (iii) solar light energy transforms into chemical energy. In (iv) potential energy converts to kinetic energy. In (v) chemical energy converts to thermal and light energy. In (vi) chemical energy converts to sound, light and heat. In (vii) sound energy converts to electrical energy. In (viii) electrical energy converts to light and heat. In (ix) light energy converts to electrical energy.
For more NCERT Solutions of Class 9 Science Exploration Chapter 7 Work, Energy and Simple Machines Question Answer (2026-27)
What is the overall mood created by the poem?
The overall mood of the poem is profoundly inspirational, compassionate and uplifting. While the initial atmosphere is charged with high-stakes athletic competition followed by sudden distress, the unselfish reaction of the runners turns the mood into one of pure warmth and joy. The sight of all ninRead more
The overall mood of the poem is profoundly inspirational, compassionate and uplifting. While the initial atmosphere is charged with high-stakes athletic competition followed by sudden distress, the unselfish reaction of the runners turns the mood into one of pure warmth and joy. The sight of all nine athletes finishing together fills the reader with hope, admiration and faith in human kindness.
For more NCERT Solutions of Class 9 English Kaveri Chapter 5 Nine Gold Medals Question Answer (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/english/kaveri-chapter-5/
See lessState whether True or False. (i) Work is said to be done when a force is applied, even if the object does not move. (ii) Lifting a bucket vertically upward results in positive work done on the bucket. (iii) The SI unit for both work and energy is joule (J). (iv) A motionless stretched rubber band has kinetic energy. (v) Energy can change from one form to another.
Statement (i) is False because work requires displacement in the direction of force. Statement (ii) is True because upward lifting force and displacement share the same direction. Statement (iii) is True because joule is the SI unit for both work and energy. Statement (iv) is False because a stationRead more
Statement (i) is False because work requires displacement in the direction of force. Statement (ii) is True because upward lifting force and displacement share the same direction. Statement (iii) is True because joule is the SI unit for both work and energy. Statement (iv) is False because a stationary stretched band stores potential energy, not kinetic energy. Statement (v) is True because energy transforms between forms.
For more NCERT Solutions of Class 9 Science Exploration Chapter 7 Work, Energy and Simple Machines Question Answer (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/science/exploration-chapter-7/
See lessFill in the blanks. (i) Work done = _____ multiplied by _____ (in the direction of force).(ii) 1 joule of work is done when a force of _____ newton displaces an object by 1 metre in the direction of the force. (iii) The expression for kinetic energy of a body of mass m and velocity v is _____. (iv) The potential energy of an object of mass m at a small height h from the Earth surface is _____. (v) Power is defined as the _____ at which work is done.
For item one, work equals force multiplied by displacement in the direction of force. For item two, one joule of work occurs when a force of 1 newton moves an object by 1 metre. For item three, kinetic energy equals half m v square. For item four, gravitational potential energy equals m g h. For iteRead more
For item one, work equals force multiplied by displacement in the direction of force. For item two, one joule of work occurs when a force of 1 newton moves an object by 1 metre. For item three, kinetic energy equals half m v square. For item four, gravitational potential energy equals m g h. For item five, power is defined as the rate of doing work.
For more NCERT Solutions of Class 9 Science Exploration Chapter 7 Work, Energy and Simple Machines Question Answer (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/science/exploration-chapter-7/
See lessWhen a ball thrown upwards reaches its highest point, tick which of the following statement(s) are correct? (i) The force acting on the ball is zero. (ii) The acceleration of the ball is zero. (iii) Its kinetic energy is zero. (iv) Its potential energy is maximum.
Statements (iii) and (iv) are correct. At the highest point of its vertical flight, the upward velocity of the ball becomes momentarily zero, causing its kinetic energy to drop to zero. Because the height is greatest, its gravitational potential energy reaches maximum. Statements (i) and (ii) are inRead more
Statements (iii) and (iv) are correct. At the highest point of its vertical flight, the upward velocity of the ball becomes momentarily zero, causing its kinetic energy to drop to zero. Because the height is greatest, its gravitational potential energy reaches maximum. Statements (i) and (ii) are incorrect because downward gravitational force and acceleration due to gravity g act continuously on the ball.
For more NCERT Solutions of Class 9 Science Exploration Chapter 7 Work, Energy and Simple Machines Question Answer (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/science/exploration-chapter-7/
See lessFor each of the following situations, identify the energy transformation that takes place:(i) a truck moving uphill, (ii) unwinding of a watch spring, (iii) photosynthesis in green leaves, (iv) water flowing from a dam, (v) burning of a matchstick, (vi) explosion of a fire cracker, (vii) speaking into a microphone, (viii) a glowing electric bulb and (ix) a solar panel.
In (i) fuel chemical energy converts to kinetic and potential energy. In (ii) elastic potential energy converts to kinetic energy. In (iii) solar light energy transforms into chemical energy. In (iv) potential energy converts to kinetic energy. In (v) chemical energy converts to thermal and light enRead more
In (i) fuel chemical energy converts to kinetic and potential energy. In (ii) elastic potential energy converts to kinetic energy. In (iii) solar light energy transforms into chemical energy. In (iv) potential energy converts to kinetic energy. In (v) chemical energy converts to thermal and light energy. In (vi) chemical energy converts to sound, light and heat. In (vii) sound energy converts to electrical energy. In (viii) electrical energy converts to light and heat. In (ix) light energy converts to electrical energy.
For more NCERT Solutions of Class 9 Science Exploration Chapter 7 Work, Energy and Simple Machines Question Answer (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/science/exploration-chapter-7/
See less