SECTION I (Thirty five questions)
Questions: 1-35
Directions: Each of the thirty five questions or incomplete statements in this section is followed by four suggested answers. Select the best answer in each case.
1. Which of the following consists of only scalar quantities?
A Electric field intensity, mass, and volume
B Momentum, acceleration and displacement
C Charge, work, temperature
D Speed, electromagnetic force, distance
2. Rutherford's alpha-particle scattering
experiments reveal strongly that an atom
A Has a nucleus of very small size and very high density.
B has an evenly distributed mass
C has a nucleus of relatively large size and of low density
D is a positive mass with electrons spreading all over inside to make it neutral
3. A ball bearing was made to fall freely through a viscous liquid in a very long tube. State which of the following statements is true?
A The acceleration of the ball remains constant throughout.
B The net upward force remains constant.
C The net downward force remains constant.
D The velocity of the ball remains constant throughout
4. Which of the force diagram(s) show(s) an object moving to the right with a constant velocity?
Figure 1
5. According to Newton's third law, every force is accompanied by an equal and opposite reaction force. The reason why these forces do not cancel each other is?
A the action force acts for a longer time period
B the two forces are not always in the same direction
C one of the two forces is greater than the other
D the two forces act upon different objects; only forces on the same object can balance each other.
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