Physics Questions and Answers
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
Diffusion
Osmosis
Surface tension
Cohesion
Correct answer is B
No explanation has been provided for this answer.
A regular spacing or arrangement of atoms in a crystalline material is called
Orbit
Lattice
Atomic structure
Energy level
Correct answer is B
The regular arrangement of atoms in a crystalline materials is called LATTICES
Heat transfer by convection will take place in one the following substance
Stone
Wood
Mercury
Water
Correct answer is D
Convection take place commonly in liquids (water) and slightly in gasses
200volts
300volts
283volts
250volts
Correct answer is C
Vr.m.s = V0 ÷ V2, where Vr.m.s rep. to as voltage root –square mean, v = peak voltage
Vr.m.s = 200volt, v = ?
200 = V0 ÷ V2
V0 = 200v2
= 200 × 1.414
= 282.8 volts V0 = b &approx.; 283 volts
A good electric cell should have the following except
A minimum of polarization effect
A long life
A cheap and safe electrolytes
Cost and dangerous of the cell
Correct answer is D
A good electric cell should proses the following
1. A long life of an electric cell,
2. A minimum of polarization effect
3. A cheap and safe electrolytes
Except D cost and dangerous of the electric cell