Post Utme Physics Past Questions and Answers

Question 901:

Which of the following statements best explains how heat flows by conduction?

A. A large mass of air begins to move faster.
B. Energy is transferred by electromagnetic waves
C. Energy is transferred from molecule to molecule
D. Large mass of warm air rises, replacing the cooler above.

Question 902:

A person starts driving and travels 3km east to a store. The person then tums around and travels 1 km west to another store. Finally, the person travels 2km west, back to the starting point. What distance has this person travelled?

A. Okm
B. 3 km
C. 5km
D. 6km

Question 903:

A 2m long pendulum swings back and front 6 times in 17s. what is the period of the pendulum?

A. 0.55s
B. 2.5s
C. 12s
D. 34s

Question 904:

Which of the following always occurs when a light ray reflects off a mirror?

A. The speed of the light ray increases
B. The direction of the light ray stays the same.
C. The frequency of the light ray decreases as it replace and loses energy to the mirror.
D. The angle which the light ray strikes the mirror equal the angle at which it reflects.

Question 905:

Two positively charged objects are separated by a large distance. One of the positively charged object is replaced by a negatively charged object, and the two objects are move closer to each other. Which of the following occurs in this situation?

A. The attractive force become a repulsive force, which increases as the objects move doser to each other.
B. The repulsive force become an attractive force, which increases as the objects move doser to each other.
C. The attractive force become a repulsive force, which decreases as the objects move doser to each other.
D. The repulsive force become an attractive force, which decreases as the objects move doser to each other.