Physics Revision Questions and Answers

Radioactivity Questions And Answers (part 2)
- By guru
- . March 14, 2022
Radioactivity Questions1. (a) Define radioactive decay (b) A radioactive element decays to 1/128 of its original activity after 49 days. Determine its half –life2. (a)

X-ray Questions And Answers (part 2)
- By guru
- . March 14, 2022
X-ray Questions 1. Give one use of X –rays in medicine 2. State the factor that affects:- (i) The intensity of X-rays (ii) The strength

ELECTRICITY & Electronics Questions And Answers
- By guru
- . March 14, 2022
ELECTRICITY & Electronics Questions1. State one advantage of a lead-acid accumulator over a dry cell 2. State one defect of a simple cell and explain

Photoelectric effect Questions And Answers (part 2)
- By guru
- . March 14, 2022
Photoelectric effect Questions1. (a) Define the following: (i) Photoelectric effect (ii) threshold wavelength (b) The variation of frequency f with the maximum

Floating and sinking Questions And Answers (part 2)
- By guru
- . March 14, 2022
Floating and sinking Questions1. Define thermionic emission2. (a) State:- (i) Archimedes’s principle (ii) The law of floatation (b) The solid of mass 12kg, weighs 100N

Work, energy and power Questions And Answers (part 2)
- By guru
- . March 14, 2022
Work, energy and power Questions1. Given that a lamp is rated 45W 240V. Calculate the resistance of the heating element. 2. An electric bulb is

Waves II Questions And Answers (part 2)
- By guru
- . March 14, 2022
Waves II Questions1. (a) (i) Distinguish between stationary and progressive waves (ii) State a reason why a closed tube or pipe produces

Quality of heat Questions And Answers (part 2)
- By guru
- . March 14, 2022
Quality of heat Questions1. 500g of a metal is heated to 100oC and then placed in a 200g mass of water at 15oC. If the

Thin lenses Questions And Answers (part 2)
- By guru
- . March 14, 2022
Thin lenses Questions1. The figure below shows how rays from a distant and near objects are focused inside a human eye with a certain defect

Sound II Questions And Answers (part 2)
- By guru
- . March 14, 2022
Sound II Questions1. The human ear can distinguish two sounds as separate only if they need it at least 0.1 secondsapart. How far from a

Refraction of light Questions And Answers (part 2)
- By guru
- . March 14, 2022
Refraction of light Questions1. The refractive index of paraffin is 1.47 and that of glass is 1.55. Determine the critical angle of a ray of

Resistors Questions And Answers (part 2)
- By guru
- . March 14, 2022
Resistors Questions1. Your are provided with the following apparatus: connecting wires, an ammeter, fixed resistors, a voltmeter, a variance resistor, a switch and two dry

Machines & inclined planes Questions And Answers (part 2)
- By guru
- . March 14, 2022
Machines & inclined planes Questions1. (a) Distinguish energy from work (b) A lady uses a ramp to lift 1500N load though a vertical distance

Linear motion Questions And Answers (part 2)
- By guru
- . March 14, 2022
Linear motion Questions1. A footballer kicks a ball of mass 0.6kg initially at rest using a force of 720N. If the foot was in

Reflection at curved surfaces and spherical surfaces Questions And Answers (part 2)
- By guru
- . March 14, 2022
Reflection at curved surfaces and spherical surfaces Questions1. (a) The table below shows the object distance u and the corresponding image distance v of an

Magnetsim Questions And Answers (part 2)
- By guru
- . March 14, 2022
Magnetsim Questions1. (a Two pins are attached to each of the magnets as shown below. (i) (ii) Explain the behaviour of pins in each