SS1 Physics 1st Term

1. During a training session, two footballers pass a ball repeatedly between each other. The ‘to and fro’ motion of the ball is not simple harmonic because the

I. Acceleration of the ball is not directed towards a fixed point

II. Restoring force is not directed towards the centre

III. Acceleration of the ball is not directly proportional to the displacement from a fixed point

Which of the statements above are correct?

WAEC 2018 Q5

2. Which of the following is/are in random motion?

I. Pollen grains in water

II. The molecules of hydrogen gas

III. Fine chalk particles floating in air.

2008, Q5

3. To obtain a virtual, erect and magnified image from a thin converging lens, an object must be placed  — WAEC 2018 Q29

4. The following are contact forces except

5. An object is said to undergo oscillatory motion when it moves

2006, Q5

6. A wire of length 400cm is stretched between two fixed points. When plucked, its fundamental frequency is 150Hz. Calculate the speed of the wave produced. WAEC 2018 Q35

7. A loaded test tube in water is carefully and slightly depressed and then released. Which of the following best describes the subsequent motion of the test tube?

8. The instrument used for measuring atmospheric pressure is

1994, Q15

9. Rainbow formation is a natural phenomenon illustrating that white light — WAEC 2018 Q21

10. Which of the following electromagnetic waves is most energetic? WAEC 2018 Q20