Question Library — KalmiPrep by Kalmitech

Physics NECO SSCE 2004 Heat Energy & Temperature

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.

A

1.60s

B

1.70s

C

1.73s

D

1.78s

E

5.11s

medium Difficulty

Physics NECO SSCE 2004 Heat Energy & Temperature

Which of the following statements is true of nuclear fission?

A

Heavy nuclei combine to form new element

B

Protons are used in bombarding heavy nucleus

C

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

D

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

E

Very large amount of energy is released.

medium Difficulty

Physics NECO SSCE 2004 Heat Energy & Temperature

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

A

all parts of the container got heated-uniformly

B

glass can withstand a very high temperature

C

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

D

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

E

thin glass does not expand fast

medium Difficulty

Physics NECO SSCE 2004 Heat Energy & Temperature

Which to the following is NOT a fundamental unit?

A

Ampere

B

Kelvin

C

Kilogramme

D

Newton

E

Second

medium Difficulty

Physics NECO SSCE 2004 Heat Energy & Temperature

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

A

Capillarity

B

Diffusion

C

Solubility

D

Surface tension

E

Viscosity

medium Difficulty

Physics NECO SSCE 2004 Heat Energy & Temperature

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]

A

1.00s

B

1.50s

C

2.25s

D

2.50s

E

3.00s

medium Difficulty

Physics NECO SSCE 2004 Heat Energy & Temperature

In which of the following are crystalline structures observable? I. Gas II. Liquid III. Solid

A

I only

B

II only

C

III only

D

I and III only

E

II and III only

medium Difficulty

Physics NECO SSCE 2004 Heat Energy & Temperature

Emission spectra are caused by

A

kinetic energy of moving atoms

B

potential energy of an electron in an atom

C

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

D

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

E

transition of excited protons in the nucleus.

medium Difficulty

Physics NECO SSCE 2004 Heat Energy & Temperature

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

A

Ammonium chloride

B

Copper (II) tetra Oxo sulphate (VI) solution

C

Manganese (IV) oxide

D

Tetraoxo sulphate (VI) acid

E

Water

medium Difficulty

Physics NECO SSCE 2004 Heat Energy & Temperature

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

A

becomes zero

B

decreases

C

increases

D

is halved

E

remains the same

medium Difficulty

Physics NECO SSCE 2004 Heat Energy & Temperature

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

A

ammeter

B

avometer

C

coil resistor

D

multiplier

E

shunt.

medium Difficulty

Physics WAEC / WASSCE 2004 Heat Energy & Temperature

In his first attempt, a long jumper took off from the spring board with a speed of 8 ms\(^{-1}\) at 30^\circ to the horizontal. He makes a second attempt with the same speed at 45^\circ to the horizontal. Given that the expression for the horizontal range of a projectile is \(\frac{u^2 sin 2\theta}{g}\) where all the symbols have their usual meanings, show that he gains a distance of 0.8576 m in his second attempt. [g = 10ms\(^{-2}\)]

medium Difficulty

Physics WAEC / WASSCE 2004 Heat Energy & Temperature

The diagram above illustrates the path ABC, in a vertical x z plane, of a bullet shot into the air at an angle above the horizontal. Copy the diagram, and, using arrows, indicate the relative magnitudes and directions of the vertical and horizontal components of the velocities of the bullet at the point A, B and C.

medium Difficulty

Physics WAEC / WASSCE 2004 Heat Energy & Temperature

(a) For a water voltameter, identify the; (i) electrolyte; (ii) electrodes; (iii) substances deposited on the electrodes (b)State the ratio of the volume of the substances deposited in (a) (iii) above

medium Difficulty

Physics WAEC / WASSCE 2004 Heat Energy & Temperature

A Spiral spring of natural length 20.00cm has a scale hanging freely in its lower end. When an object ass 40 g is placed in the pan. its length becomes cm. When the object is replaced with another of 60g, the length becomes 22.05cm. Calculate the mass scale pan. [g = 10 ms\(^{-2}\)]

medium Difficulty