Physics MCQS

631. Free fall motion of objects moving with can also be accounted for using the equations for uniformly accelerated motion:
A. Acceleration
B. Constant velocity
C. Instantaneous acceleration
D. Negative acceleration

632. To move a mass of m vertically upward, the minimum force required is:
A. MG
B. MG/2
C. More than 2MG
D. More than MG

633. The physical quantity ‘’Impulse’’ has the same dimensions as that of:
(A) Force
(B) Power
(C) Energy
D) Momentum

634. A square loop of wire lies in the plane of the page. A decreasing magnetic field is directed into the page. The induced current in the loop is:
A) Clockwise
B) Counter Clockwise
C) Zero
D) Up the left edge and from right to left along the top edge.

635. An internal process for an ideal gas is represented on a p – v diagram by:
A) A portion of hyperbola
B) A vertical line
C) A horizontal line
D) None of the above

636. A stone thrown from the top of a tall building follows a path that is:
A) Parabolic
B) Hyperbolic
C) Made of two straight line segments
D) Circular

637. What is the internal energy of a system?
A. The amount of heat supplied to the system
B. The energy of the atoms of the system
C. The total Kinetic energy of the system
D. The total potential energy of the system

638. A force on a particle is conservative if:
A. It obeys Newton’s 2nd Law
B. It obeys Newton’s 3rd Law
C. Its work depends on the end points of every motion, not on the path between.
D. None of the above

639. The momentum of an object at a given instant is independent of its:
A. Inertia
B. Mass
C. Acceleration
D. Velocity

640. A standing wave:
A. Can be constructed from two similar waves traveling in opposite directions.
B. Must be transverse
C. Must be longitudinal
D. None of the above