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Who is the famous author of 'The Prince', a political treatise from the Renaissance period?

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Important Questions on Thermal Properties of Matter

EASY
Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R

Assertion A : An electric fan continues to rotate for some time after the current is switched off.

Reason R: Fan continues to rotate due to inertia of motion.

In the light of above statements, choose the most appropriate answer from the options given below.

 

EASY
Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling
A particle of mass m is moving in a circular path of constant radius r such that its centripetal acceleration ac is varying with time t as ac=k2rt2 , where k is a constant. The power delivered to the particle by the force acting on it is -
EASY
Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling
Amongst the following statements, that which was not proposed by Dalton was :
EASY
Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling
According to Aristotle observation, an external _____ is required to keep a body in uniform motion.
MEDIUM
Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling
State Aristotelian law of motion.
EASY
Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling
State Aristotle law of motion.
EASY
Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling
A man 80 kg is supported by two cables as shown in the figure. Then the ratio of tensions T1 and T2 is,
Question Image
EASY
Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling
Is it Necessary to Use an External Force to Retain a Body in Uniform Motion?
EASY
Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling
Was Aristotle correct about his statement aristotle's fallacy?
HARD
Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling
Who was Aristotle? Explain his law of motion.
HARD
Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling
Explain why Aristotle's law of motion is flawed.
MEDIUM
Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling
How do you appreciate Galileo's thought of “any moving body continues in the state only until an external force acts on it” which is in contradiction to Aristotle's belief of “any moving body naturally comes to rest”.
EASY
Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling
If the cylinder is compressed under the action of applied forces, the restoring force per unit area is known as _____.
EASY
Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling
In the absence of an external opposing force, a body in motion will be in uniform motion forever.
MEDIUM
Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling
Block A of weight 100 N rests on a frictionless inclined plane of slope angle 30° as shown in the figure. A flexible cord attached to A passes over a frictionless pulley and is connected to block B of weight W. Find the weight W for which the system is in equilibrium.
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EASY
Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling

Was Aristotle correct about his statement aristotle's fallacy? If correct, explain his statement with an illustration.

MEDIUM
Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling
State Aristotle law of motion.
HARD
Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling
Give an example to explain the flaw in Aristotle's law of motion.
EASY
Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling
Is it necessary to use an external force to retain a body in uniform motion?
EASY
Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling
Which of the following statement is not correct for an object moving along a straight path in an accelerated motion?