Newton's second law states that the net force acting on a body is equal to the body's time rate of change of MOMENTUM

Q-1: Newton's second law states that the net force acting on a body is equal to the body's time rate of change of:

1) acceleration
2) mass
3) momentum
4) inertia
ANSWER: 3 -- MOMENTUM

Q-2: A girl throws a ball vertically upward, what is the MOMENTUM of the ball at its highest point?

ANSWER: ZERO

Q-3:  A girl throws a 2 kilogram rock vertically upward. It reaches a maximum height of 5 meters. What is the kinetic energy of the rock the instant it leaves the girl's hand?

ANSWER: 100 JOULES (accept 98 joules)

Q-4:  A spring with a force constant of 20 newtons per meter is known to obey Hooke's Law. The spring is attached to a mass of 5 kilograms and placed on a horizontal, frictionless surface. The mass is displaced 3 meters from its equilibrium position and released.What is the kinetic energy of the mass as it passes through its equilibrium position?

ANSWER: 90 JOULES

Q-5: The period of oscillation of a particle undergoing simple harmonic motion is:

1) independent of the amplitude of the motion
2) directly proportional to the frequency of oscillation
3) independent of the frequency of oscillation
4) none of the above
ANSWER: 1 -- INDEPENDENT OF THE AMPLITUDE OF THE MOTION

Q-6: The angle between the velocity and acceleration of a body is:

1) never 90 degrees
2) never 180 degrees
3) sometimes 180 degrees
4) never 0 degrees
ANSWER: 3 -- SOMETIMES 180 DEGREES

Q-7:  In a collision, which of the following four quantities is always conserved?

1) momentum
2) kinetic energy
3) torque
4) moment of inertia
ANSWER: 1 -- MOMENTUM

Q-8: Of the following terms, which is the product of force and time? Is it:

1) impulse
2) power
3) energy
4) work
ANSWER: 1 -- IMPULSE

Q-9:  In physics, a radian per second squared is a unit of:

1) angular displacement
2) angular velocity
3) angular acceleration
4) angular momentum.
ANSWER: 3 -- ANGULAR ACCELERATION

Q-10:  At what centigrade temperature will 1 mole of a gas under 1 atmosphere of pressure occupy 22.4 liters?

ANSWER: ZERO DEGREES CENTIGRADE