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Q:

The forces between two bodies are always equal and opposite. This idea is stated in the form of Newton's

A) first and second law of motion B) first law of motion
C) third law of motion D) second law of motion
 
Answer & Explanation Answer: C) third law of motion

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Q:

What is the amount of work done when a body moves under a force of 1 N at a distance of 1 meter in the direction of the force?

A) 1 Joule B) 0.01 Joules
C) 100 Joules D) 10 Joules
 
Answer & Explanation Answer: A) 1 Joule

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Q:

What happens to the Potential and Kinetic energies of a body as it falls down from a height?

A) Its Potential energy decreases while its Kinetic energy increases B) There is no change in its Potential or Kinetic energy
C) Its Potential and Kinetic energies decrease D) Its Potential energy increases while its Kinetic energy decreases
 
Answer & Explanation Answer: A) Its Potential energy decreases while its Kinetic energy increases

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Q:

In which of the following activities is work NOT done?

A) Ashwin is standing on the platform B) Ashwin is running
C) Ashwin is walking D) Ashwin is climbing a bus
 
Answer & Explanation Answer: A) Ashwin is standing on the platform

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Q:

Objects float on water based on ___.

A) Newton's third law of motion B) Hooke's law
C) Faraday's law D) Archimedes principle
 
Answer & Explanation Answer: D) Archimedes principle

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Q:

Definition of Force can be stated from:

A) Newton's second law of motion B) Newton's first law of motion
C) Newton's third law of motion D) Newton's law of gravitation
 
Answer & Explanation Answer: D) Newton's law of gravitation

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Q:

In a longitudinal wave, the distance between two consecutive compressions and two consecutive refractions is called

A) Matter B) Wavelength
C) Magnitude D) Energy
 
Answer & Explanation Answer: B) Wavelength

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Q:

Which of the following is not a renewable source of energy?

A) Solar B) Wind
C) Ocean waves D) Coal
 
Answer & Explanation Answer: D) Coal

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