PHYSICS
HOLIDAY ASSIGNMENT FOR THE PAST SS 2 AND PRESENT SS 3
STUDENTS
1. Describe an experiment to verify the variation of frequency with the length of a
wire
2. Write a short note on the following:
i. forced vibration ii. Resonance
3. Describe an experiment to determine the velocity of sound in air
4. A pipe closed at one end is 100cm long. If air in the pipe is set into vibration
and a fundamental note is produced, calculate the frequency of the note
[velocity of sound in air =340ms-1]
5. The plates of a parallel plate capacitor, 5.0x10-3m apart are maintained at a p.d
of 5.0x104V. Calculate the magnitude of the (i) electric field intensity
between the plates (ii) force on the electron; (iii) acceleration of the electron
[electronic charge=1.60x10-19C, mass of electron=9.1x10-31kg]
6. Draw a cathode ray tube and label at least four essential parts (ii) state the
uses of a cathode ray tube
7. (a) State the laws of electromagnetic induction (b) explain how one of the
laws illustrates the principle of conservation of energy
8. Draw a vector diagrams of the relationship between I and V for an a.c circuit
containing (a) a pure inductor (b) a pure capacitor (c) a pure resistor
9. If an alternating current is represented by I= I0sin wt, state what the symbol I,
I0, w and wt represent.
(ii) calculate the instantaneous value of such a current
if in a circuit it has r.m.s value of 15.0A when its phase angle is 30o
10. (a) Draw a labelled diagram of a photocell and explain its mode of operation
(b) A light of wavelength 5.0x10-7m is incident on metal resulting in
photoemission of electrons. If the work function of the metal is 3.04x10-19J
calculate (i) frequency of the light (ii) energy of the incident photon (iii)
maximum kinetic energy of the photoelectrons (take; speed of light =
3.0x108ms-1, plank’s constant=6.6x10-34JS)
NOTE: (a) This assignment carries 15marks of your total 1st term work
(b) For the scheme of work, read from sound wave to the end of the text book
GOODLUCK!
PHYSICS
HOLIDAY ASSIGNMENT FOR THE PAST SS 1 AND PRESENT SS 2
STUDENTS
1. A gun fires a shell at an angle of elevation of 300 with a velocity of 2000m/s.
what are the horizontal and vertical components of the velocity? What is the
range of the shell? And how high will the ball rise?
2. a. Distinguish between stable, neutral and unstable equilibrium
b. State the conditions of equilibrium for non-parallel coplanar forces
3. A meter rule is found to balance at the 48cm mark. When a body of mass 60g
is suspended at the 6cm mark, the balance point is found to be at 30cm mark.
Calculate:
(a) the mass of the meter rule
(b) the distance of the balance point from the zero end, if the body were moved to
the 13cm mark
4. Explain the following: (a) forced vibration (b) Damped oscillation
HM
(c) S
5. If a body moving with a simple harmonic motion has an angular velocity of 50rad
per sec and an amplitude of 10cm, calculate its linear velocity.
6. (a). Distinguish between elastic and inelastic collision
(b). A tractor of mass 5000kg is used to tow a car of mass 2500kg. The tractor
moved with a speed of 3m/s just before the towing rope becomes taut. Calculate the
i. speed of the tractor immediately the rope becomes taut.
ii. loss in KE of the system just after the car has started moving
7. show that efficiency E, the force ratio MA and the velocity ratio VR of a machine
are related by the equation
E=(MA/VR)x100%
NOTE: For the scheme of work, read the following topics: (a) projectile motion
(b) forces in equilibrium (c) simple harmonic motion SHM (d) linear momentum
(e) machine & mechanical energy.
It is important you spend more time on forces in equilibrium and SHM rather
than rushing to cover all topics.
GOODLUCK!
BASIC TECHNOLOGY
HOLIDAY ASSIGNMENT FOR THE PAST BASIC 8/PRESENT BASIC 9
1. (a) What technological career would you like to pursue in life?
(b) Give reasons for your interest in the chosen career
2. Describe how iron can be extracted from iron ore
3. Explain the following terms; (i) wood seasoning (ii) Annealing (iii) clay firing (iv)
wood finishing
4. Mention 4 types of timber preservative
5. Draw a cube in: (i) isometric (ii) Oblique
NOTE: For the scheme of work, read; (a) career prospects in technology (b) timber
processing (c) glass processing (d) ceramic processing (e) metal extraction and
processing (f) isometric and oblique drawing (g) orthographic drawing (h) wood
machines