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Q:

In the formula average velocity = (u + v) /2, u is the ___________.

A) Final velocity B) Initial displacement
C) Initial velocity D) Final displacement
 
Answer & Explanation Answer: C) Initial velocity

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Q:

The slope of a Distance­Time graph shows ___________.

A) acceleration B) momentum
C) mass D) speed
 
Answer & Explanation Answer: D) speed

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Q:

Electrical Energy is the energy of

A) Protons B) Neutrons
C) Electrons D) All the above
 
Answer & Explanation Answer: C) Electrons

Explanation:

We know that Kinetic energy is the energy of a moving object and in the same way Electrical energy is the form of kinetic energy caused by moving electric charges called electrons.

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Q:

_____ is same on every point on a rotating body.

A) Linear velocity B) Linear momentum
C) Angular torque D) Angular velocity
 
Answer & Explanation Answer: D) Angular velocity

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Q:

An object with a mass of 22 kg moving with a velocity of 5 m/s possesses a kinetic energy of :

A) 275 J B) 110 J
C) 2750 J D) 110 J
 
Answer & Explanation Answer: A) 275 J

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Q:

If objects appear enlarged and inverted in a rear view mirror, then which type of mirror is used?

A) Concave B) Convex
C) Cylindrical D) Plane
 
Answer & Explanation Answer: A) Concave

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Q:

Bandwidth is the

A) a measure of the width of a range of frequencies B) the rate of data transfer
C) both a & b D) None of the above
 
Answer & Explanation Answer: C) both a & b

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Q:

Which of the following is not a unit of energy?

A) Calorie B) Joule
C) electron volt D) Watt
 
Answer & Explanation Answer: D) Watt

Explanation:

The watt(symbol: W) is a unit of power. In the International System of Units (SI) it is defined as a derived unit of 1 joule per second, and is used to quantify the rate of energy transfer. In dimensional analysis it is described by

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