Wednesday, May 1, 2013

Newton's first law is often referred to as which of the following?


Q-1: Newton's first law is often referred to as which of the following?
1) The law of straight-line motion.
2) The law of momentum
3) The law of inertia
4) F = ma (Spell out M-A)
ANSWER: 3 -- THE LAW OF INERTIA
Q-2: The statement, "In regions where fluid velocity is smaller, the pressure is higher, and vice versa", is known as the principle of:
1) Pascal
2) Bernoulli
3) Torricelli
4) Archimedes
ANSWER: 2 -- BERNOULLI
Q-3: Relative to its period on the earth, is the period of a pendulum on the moon:
1) shorter
2) longer
3) remain unchanged
ANSWER: 2 -- LONGER
Q-4: Two bodies each have a mass 'M'. If the mass of each body is doubled, the force of attraction between the two bodies is:
1) twice the original force
2) 1/4 the original force
3) 4 times the original force
4) unchanged
ANSWER: 3 -- 4 TIMES THE ORIGINAL FORCE
Q-5: An object in equilibrium always has zero:
1) velocity
2) momentum
3) mass
4) acceleration.
ANSWER: 4 -- ACCELERATION
Q-6:Which of the following is NOT an SI unit of measure?
1) watt
2) newton
3) joule
4) erg
5) second
ANSWER: 4 -- ERG
Q-7: A body which is attached to a spring undergoes simple harmonic motion. The magnitude of the body's acceleration is:
1) constant
2) proportional to its displacement from its equilibrium position
3) zero
4) always increasing.
ANSWER: 2 -- PROPORTIONAL TO ITS DISPLACEMENT FROM ITS
EQUILIBRIUM POSITION
Q-8: If the resultant force acting on a body of constant mass is zero, the body's acceleration is:
1) increasing
2) decreasing
3) always zero
4) negative.
ANSWER: 3 -- ALWAYS ZERO
Q-9:What is the name of the Scottish physicist who developed the mathematical explanation of the theory of light?
ANSWER: (JAMES CLERK) MAXWELL

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