NECO SSCE - Physics - 2004 (Objective)

A body of mass 40g loses 80J of heat energy. If the specific heat capacity of the body is 400 Jkg^-1, calculate the change in temperature of the body.

0.2K

0.4K

2.0K

5.0K Jibu sahihi

10.0K

Maelezo ya Majibu

Soma maelezo ya somo kwenye Quantity Of Heat (JAMB)

Quantity Of Heat

Tazama Jibu

Swali 4 Ripoti

Heat

I. is a form of energy
II. is measured with a thermometer
III. cannot be created or destroyed
IV. from a hot object is transferred through conduction only. Which of the statements above are correct?

I and II only

I and III only Jibu sahihi

I, II and III only

II, III and IV only

I, II, III and IV

Maelezo ya Majibu

Soma maelezo ya somo kwenye Heat Energy (WAEC)

Heat Energy

Tazama Jibu

Swali 5 Ripoti

Which of the following is used as a depolarizer in a Denial cell?

Ammonium chloride

Copper (II) tetra Oxo sulphate (VI) solution Jibu sahihi

Manganese (IV) oxide

Tetraoxo sulphate (VI) acid

Water

Maelezo ya Majibu

Soma maelezo ya somo kwenye Current Electricity (JAMB)

Soma maelezo ya somo kwenye Electric Cells (JAMB)

Current Electricity

Electric Cells

Tazama Jibu

Swali 6 Ripoti

Which of the following conclusion(s) can be drawn from Newton’s second law of motion? Force is proportional to

I. the product of mass and acceleration
II. the product of mass and velocity
III. Impulse

I only

II only

III only

II and III only

I, II and III Jibu sahihi

Maelezo ya Majibu

Soma maelezo ya somo kwenye Newton’s Laws Of Motion (WAEC)

Newton’s Laws Of Motion

Tazama Jibu

Swali 7 Ripoti

For total internal reflection to occur,

I. light must be travelling from an optically more dense to an optically less dense medium.
II. the angle of incidence in the denser medium must be greater than its critical angle.
III. the angle of refraction in the less dense medium must be equal to 90 °. Which of the statements above is/are correct?

I only

II only

III only

I and II only Jibu sahihi

II and III only.

Maelezo ya Majibu

Soma maelezo ya somo kwenye Reflection Of Light At Plane And Curved Surfaces (JAMB)

Soma maelezo ya somo kwenye Refraction Of Light Through Plane And Curved Surfaces (JAMB)

Reflection Of Light At Plane And Curved Surfaces

Refraction Of Light Through Plane And Curved Surfaces

Tazama Jibu

Swali 8 Ripoti

The relative density of dilute tetraoxosulphate (vi) acid in a battery is measured with a

barometer

hydrometer Jibu sahihi

manometer

hypsometer

Maelezo ya Majibu

Soma maelezo ya somo kwenye Measurements And Units (JAMB)

Measurements And Units

Tazama Jibu

Swali 9 Ripoti

A projectile fired with initial velocity, u will attain its maximum height H when the angle of projection θ is

30°

450°

60°

75°

90° Jibu sahihi

Maelezo ya Majibu

Soma maelezo ya somo kwenye Scalars And Vectors (JAMB)

Soma maelezo ya somo kwenye Motion (JAMB)

Scalars And Vectors

Motion

Tazama Jibu

Swali 10 Ripoti

Which of the following is NOT an example of a percussion instrument?

Bell

Drum

Flute Jibu sahihi

Gong

Xylophone

Maelezo ya Majibu

Soma maelezo ya somo kwenye Motion (JAMB)

Motion

Tazama Jibu

Swali 11 Ripoti

How far from a hill should a boy stand to hear the echo of his clap 1 .6s later? [Speed of sound in air is 340ms^-1]

186m

272m Jibu sahihi

544m

1088m

2000m

Maelezo ya Majibu

Soma maelezo ya somo kwenye Sound Waves (WAEC)

Soma maelezo ya somo kwenye Propagation Of Sound Waves (JAMB)

Sound Waves

Propagation Of Sound Waves

Tazama Jibu

Swali 12 Ripoti

Which of the statements about prism binoculars is/are correct? They

I. are a pair of two telescopes mounted side by side
II. reduce the optical path of the light ray from the objective to the eye piece
III, present inverted and diminished image to the viewer
IV. present erect and magnified image to the viewer.

I only

II only

I and II only

I, II and IV only Jibu sahihi

II, III and IV only

Maelezo ya Majibu

Soma maelezo ya somo kwenye Optical Instruments (JAMB)

Optical Instruments

Tazama Jibu

Swali 13 Ripoti

Which of these expresses the relationship between the earth’s magnetic field FE, and the field’ FB due to a magnet at neutral points? FE is

equal and opposite to F^B Jibu sahihi

equal to and in the same direction with F^B

greater than and in the same direction with F_B

greater than and opposite to F_B

less than and opposite to F_B

Maelezo ya Majibu

Soma maelezo ya somo kwenye Electric Field (WAEC)

Electric Field

Tazama Jibu

Swali 14 Ripoti

A current flows in a series circuit containing a resistor, R, an inductor, L and a capacitor, C. Which of the following is true of the power dissipated in the circuit component(s)?

The power dissipated in L is greater than zero

The power dissipated in R is zero

The sum of the power dissipated in L and C is equal to that in R

The sum of the power dissipated in L and C is greater than in R

The sum of the power dissipated in L and C is zero Jibu sahihi

Maelezo ya Majibu

Soma maelezo ya somo kwenye Capacitors (JAMB)

Soma maelezo ya somo kwenye Simple A.C Circuits (JAMB)

Capacitors

Simple A.C Circuits

Tazama Jibu

Swali 15 Ripoti

Which of the following statements is true of nuclear fission?

Heavy nuclei combine to form new element

Protons are used in bombarding heavy nucleus

The sum of the masses of the products is greater than the mass of the original substance

Two light nuclei are made to combine to form a heavy nucleus

Very large amount of energy is released. Jibu sahihi

Maelezo ya Majibu

Soma maelezo ya somo kwenye Structure Of The Nucleus (WAEC)

Soma maelezo ya somo kwenye Position, Distance And Displacement (WAEC)

Structure Of The Nucleus

Position, Distance And Displacement

Tazama Jibu

Swali 16 Ripoti

A force F is applied to a body P as shown in the diagram above. If the body moves through a distance, a, which of the following represents the work done?

Fa Cos θ Jibu sahihi

\(\frac{Fa}{\cos \theta}\)

FaSin θ

\(\frac{Fa}{\sin \theta}\)

Maelezo ya Majibu

Soma maelezo ya somo kwenye Scalars And Vectors (WAEC)

Soma maelezo ya somo kwenye Work, Energy And Power (WAEC)

Scalars And Vectors

Work, Energy And Power

Tazama Jibu

Swali 17 Ripoti

A stone is dropped from the top of a tower of height 11 .25m. Calculate the time it will take to reach the ground. [g = 10ms-2]

1.00s

1.50s Jibu sahihi

2.25s

2.50s

3.00s

Maelezo ya Majibu

Soma maelezo ya somo kwenye Motion (JAMB)

Soma maelezo ya somo kwenye Equilibrium Of Forces (WAEC)

Motion

Equilibrium Of Forces

Tazama Jibu

Swali 18 Ripoti

A car travels with a constant velocity of 45 kmh^-1 for 20s. What distance does it cover in this time?

0.025m

0.250m

2.500m

25.000m

250.000m Jibu sahihi

Maelezo ya Majibu

Soma maelezo ya somo kwenye Motion (JAMB)

Motion

Tazama Jibu

Swali 19 Ripoti

Emission spectra are caused by

kinetic energy of moving atoms

potential energy of an electron in an atom

transition of an electron from a higher energy level to a lower energy level Jibu sahihi

transition of an electron from a lower energy level to higher energy level

transition of excited protons in the nucleus.

Maelezo ya Majibu

Soma maelezo ya somo kwenye Wave-particle Paradox (WAEC)

Soma maelezo ya somo kwenye Structure Of The Nucleus (WAEC)

Soma maelezo ya somo kwenye Structure Of The Atom (Nigeria Only) (WAEC)

Wave-particle Paradox

Structure Of The Nucleus

Structure Of The Atom (Nigeria Only)

Tazama Jibu

Swali 20 Ripoti

If the distance between the plates of a parallel plate capacitor is decreased, its capacitance

becomes zero

decreases

increases Jibu sahihi

is halved

remains the same

Maelezo ya Majibu

Soma maelezo ya somo kwenye Capacitors (JAMB)

Capacitors

Tazama Jibu

Swali 21 Ripoti

Calculate the wavelength of light travelling with a speed of 3 × 108ms^-1 and a frequency of 6.2 × 10¹⁴Hz.

4.8 × 10^-8m

4.8 × 10^-7m Jibu sahihi

4.8 × 10^-6m

4.8 × 10^-5m

4.8 × 10^-4m

Maelezo ya Majibu

Soma maelezo ya somo kwenye Electromagnetic Waves: Types Of Radiation In Electromagnetic Spectrum (WAEC)

Electromagnetic Waves: Types Of Radiation In Electromagnetic Spectrum

Tazama Jibu

Swali 22 Ripoti

A radioactive isotope has a half-life of 8 days. What fraction of the atoms will remain after 72 days?

9.766 × 10^-4

1.736 ×10^-3

1.953 ×10^-3 Jibu sahihi

3.472 × 10^-3

3.906 x 10^-3

Maelezo ya Majibu

Soma maelezo ya somo kwenye Elementary Modern Physics (JAMB)

Elementary Modern Physics

Tazama Jibu

Swali 23 Ripoti

In which of these fields are repulsive forces NOT experienced?

I. Magnetic field
II. Gravitational field
III. Electric field

I only

II only Jibu sahihi

III only

I and III only

II and III only

Maelezo ya Majibu

Soma maelezo ya somo kwenye Electric Field (WAEC)

Soma maelezo ya somo kwenye Gravitational Field (WAEC)

Electric Field

Gravitational Field

Tazama Jibu

Swali 24 Ripoti

A mass of 5kg is suspended from the ceiling of a lift with a light inextensible string. As the lift moves upwards with an acceleration of 2ms^-2, the tension in the string is [g = 10ms^-2]

25N

40N Jibu sahihi

50N

60N

70N

Maelezo ya Majibu

Soma maelezo ya somo kwenye Newton’s Laws Of Motion (WAEC)

Soma maelezo ya somo kwenye Equilibrium Of Forces (WAEC)

Newton’s Laws Of Motion

Equilibrium Of Forces

Tazama Jibu

Swali 25 Ripoti

A plane which is Inclined at an angle of 30 ° to the horizontal has a velocity ratio of

2 Jibu sahihi

0.87

0.67

0.5

Maelezo ya Majibu

Soma maelezo ya somo kwenye Scalars And Vectors (JAMB)

Soma maelezo ya somo kwenye Speed And Velocity (WAEC)

Scalars And Vectors

Speed And Velocity

Tazama Jibu

Swali 26 Ripoti

A body has masses of 0.013kg and 0.012 kg in oil and water respectively. If the relative density of oil is 0.875 calculate the mass of the body.

0.02 kg Jibu sahihi

0.03kg

0.04kg

0.05kg

0.06kg

Maelezo ya Majibu

Soma maelezo ya somo kwenye Motion (JAMB)

Soma maelezo ya somo kwenye Measurements And Units (JAMB)

Motion

Measurements And Units

Tazama Jibu

Swali 27 Ripoti

Which property of a fluid determines its suitability as a lubricant?

Capillarity

Diffusion

Solubility

Surface tension

Viscosity Jibu sahihi

Maelezo ya Majibu

Soma maelezo ya somo kwenye Fluid At Rest (WAEC)

Fluid At Rest

Tazama Jibu

Swali 28 Ripoti

A resistor connected in parallel with a galvanometer so that a large amount of current can be measured is called a/an

ammeter

avometer

coil resistor

multiplier

shunt. Jibu sahihi

Maelezo ya Majibu

Soma maelezo ya somo kwenye Current Electricity (JAMB)

Current Electricity

Tazama Jibu

Swali 29 Ripoti

In which of the following are crystalline structures observable?

I. Gas
II. Liquid
III. Solid

I only

II only

III only Jibu sahihi

I and III only

II and III only

Maelezo ya Majibu

Soma maelezo ya somo kwenye Temperature And Its Measurement (JAMB)

Temperature And Its Measurement

Tazama Jibu

Swali 30 Ripoti

The time t₁, t₂ and t₃ for 20 complete oscillations of a simple pendulum experiment are 32.0s, 34.6s and 35.5s respectively. Calculate the mean period of the pendulum.

1.60s

1.70s Jibu sahihi

1.73s

1.78s

5.11s

Maelezo ya Majibu

Soma maelezo ya somo kwenye Simple Harmonic Motion (WAEC)

Soma maelezo ya somo kwenye Work, Energy And Power (WAEC)

Simple Harmonic Motion

Work, Energy And Power

Tazama Jibu

Swali 31 Ripoti

When very hot water is poured into a thin-walled glass container, it is less likely to break because

all parts of the container got heated-uniformly Jibu sahihi

glass can withstand a very high temperature

the molecules of glass are too far apart to cause breakages of the container

the outer part of the container is cooler than the inner part

thin glass does not expand fast

Maelezo ya Majibu

Soma maelezo ya somo kwenye Temperature And Its Measurement (JAMB)

Soma maelezo ya somo kwenye Elasticity (JAMB)

Temperature And Its Measurement

Elasticity

Tazama Jibu

Swali 32 Ripoti

A ray of light experiences a minimum deviation when passing through an equilateral triangular glass prism. Calculate the angle of incidence of the ray. [Refractive index of glass = 1.5]

300.0°

48.6° Jibu sahihi

60.0°

75.5°

105.0 °

Maelezo ya Majibu

Soma maelezo ya somo kwenye Refraction Of Light Through Plane And Curved Surfaces (JAMB)

Refraction Of Light Through Plane And Curved Surfaces

Tazama Jibu

Swali 33 Ripoti

A voltage supply of 12V r.m.s. and frequency 90Hz is connected to a 4 ω resistor. Calculate the peak value of the current

48.8 A

30.0 A

27.5 A

4.2 A Jibu sahihi

3.0A

Maelezo ya Majibu

Tazama Jibu

Swali 34 Ripoti

The temperature at which the water vapour present in the air is just enough to saturate the air is the _______ point.

boiling

critical

dew Jibu sahihi

ice

steam

Maelezo ya Majibu

Soma maelezo ya somo kwenye Temperature And Its Measurement (JAMB)

Temperature And Its Measurement

Tazama Jibu

Swali 35 Ripoti

The frequency of a body executing simple harmonic motion when left undisturbed is known as__________ frequency.

damped

forced

free

natural Jibu sahihi

sinusoidal

Maelezo ya Majibu

Soma maelezo ya somo kwenye Simple Harmonic Motion (WAEC)

Soma maelezo ya somo kwenye Equilibrium Of Forces (WAEC)

Simple Harmonic Motion

Equilibrium Of Forces

Tazama Jibu

Swali 36 Ripoti

A note, A from a guitar produces a wave of amplitude 4 mm and frequency 1000 Hz. Another note, B from a whistle produces a similar waveform of amplitude 2 mm and frequency 2200 Hz. If the two notes are compared,

A has a higher pitch than B

A is louder than B. Jibu sahihi

B has a greater speed than A

B is louder than A

A and B have the same quality

Maelezo ya Majibu

Soma maelezo ya somo kwenye Motion (JAMB)

Soma maelezo ya somo kwenye Properties Of Waves: Reflection, Refraction, Diffraction (WAEC)

Motion

Properties Of Waves: Reflection, Refraction, Diffraction

Tazama Jibu

Swali 37 Ripoti

Calculate the magnitude of the electric field intensity in vacuum at a distance of 25cm from a charge of 5 × 10^-3C. [Take 1/4πε₀]

7.2 × 108NC^-1 Jibu sahihi

1.8 × 108NC^-1

5.6 × 108NC^-1

3.6 × 108NC^-1

1.5 × 106NC^-1

Maelezo ya Majibu

Soma maelezo ya somo kwenye Electric Field (WAEC)

Electric Field

Tazama Jibu

Swali 38 Ripoti

Calculate the energy stored in an inductor of inductance 0.5H when a current of 3A flows through it.

15.00 J

9.45 J

6.00 J

4.50J

2.25 J Jibu sahihi

Maelezo ya Majibu

Soma maelezo ya somo kwenye Capacitors (JAMB)

Soma maelezo ya somo kwenye Work, Energy And Power (WAEC)

Capacitors

Work, Energy And Power

Tazama Jibu

Swali 39 Ripoti

The rate of diffusion of gases increases with increase(s) in

I. density
II. temperature
III, mass. Which is/are correct?

I only

II only Jibu sahihi

I and II only

II and III only

I, II and III

Maelezo ya Majibu

Soma maelezo ya somo kwenye Gas Laws (JAMB)

Gas Laws

Tazama Jibu

Swali 40 Ripoti

What is the uncertainty in the measurement of time, if the uncertainty in measuring the energy of an electron of mass 10^-30 kg is 2.45 × 10^-19J? h = 6.6 × 10^-34

1.35 ×10^-15s

2.69 × 10^-15s Jibu sahihi

4.15 × 10^-15s

9.05 × 10^-15s

1.62 × 10^-14s

Maelezo ya Majibu

Soma maelezo ya somo kwenye Temperature And Its Measurement (JAMB)

Temperature And Its Measurement

Tazama Jibu

Swali 41 Ripoti

The general equation of a wave CANNOT be written as

y = A Sin [2 π (\(\frac{t}{T}\) ± Xλ)]