Question Library — KalmiPrep by Kalmitech

Physics WAEC / WASSCE 2016 Mechanics and Properties of Matter

When a body is thrown vertically upwards, its velocity at the maximum height is

A

maximium

B

zero

C

double its initial value

D

half its initial value

medium Difficulty

Physics WAEC / WASSCE 2016 Waves and Optics

Resonance occurs when one vibrating object causes a second object to vibrate at its own natural

A

amplitude

B

speed

C

frequency

D

intensity

medium Difficulty

Physics WAEC / WASSCE 2016 Heat Energy & Temperature

The mouth piece of a telephone handset converts

A

electrical energy to sound energy

B

sound energy to electrical energy

C

sound energy to radiowave

D

radiowave to sound energy

medium Difficulty

Physics WAEC / WASSCE 2016 Thermal Physics

In the clinical thermometer, the function of the kink is to i. Prevent the back flow of mercury after use. ii. Ensure the back flow of mercury after use. iii. Maintain the thermometric property of mercury. iv. Allow the temperature attained to be read.

A

i only

B

i and ii only

C

i and iv only

D

iii and iv only

medium Difficulty

Physics WAEC / WASSCE 2016 Mechanics and Properties of Matter

Which of the following statements correctly defines the boiling point of a liquid? The temperature at which the

A

saturated vapour pressure equals the atmospheric pressure

B

molecules leaves the liquid at a rate equal to the rate at which they return

C

molecules leave the liquid at a rate higher than that at which they return

D

molecules leave the liquid at a rate lower than the rate at which they return

medium Difficulty

Physics WAEC / WASSCE 2016 Mechanics and Properties of Matter

The diagram given illustrates a force-distance graph for the motion of a wooden block. Determine the work done on the block when moved through a distance of 5m.

Attached Figure / Diagram

A

4J

B

15J

C

5J

D

100J

medium Difficulty

Physics WAEC / WASSCE 2016 Mechanics and Properties of Matter

The two person of a body undergoing a uniformly accelerated motion are (10s, 10ms-1) and (30s, 50ms-1). On the velocity-time graph pf the body.

A

0.5ms-2

B

2.0ms-2

C

10.0ms-2

D

40.0ms-2

medium Difficulty

Physics WAEC / WASSCE 2016 Heat Energy & Temperature

At a birthday party, the celebrant pops a corked fruit wine. If the cork shoots out of the bottle at an angle of 40o to the horizontal and travels a horizontal distance of 4.50m in 1.25s. Calculate the initial speed of the cork.

A

4.2ms-1

B

4.7ms-1

C

5.6ms-1

D

7.1ms-1

medium Difficulty

Physics WAEC / WASSCE 2016 Heat Energy & Temperature

A uniform metre rule is balanced on a fulcrum placed at the 35cm mark by suspending a mass of 120g at the 10cm mark. Calculate the mass of the metre rule.

A

60g

B

80g

C

120g

D

200g

medium Difficulty

Physics WAEC / WASSCE 2016 Heat Energy & Temperature

A plank is placed along the path on which a wheel barrow containing sand is pushed at a construction site to prevent it from sticking as illustrated in the diagram given. The large area of the plank prevents the wheel barrow from getting stuck by

Attached Figure / Diagram

A

increasing the reaction on the ground

B

increasing the pressure on the ground

C

decreasing the pressure on the ground

D

decreasing the weight on the ground

medium Difficulty

Physics WAEC / WASSCE 2016 Thermal Physics

The diagram given is used to determine the

Attached Figure / Diagram

A

boiling point of water

B

atmospheric pressure

C

upper fixed point of a thermometer

D

amount of water in the atmosphere

medium Difficulty

Physics WAEC / WASSCE 2016 Thermal Physics

An aluminium rod of length 1.8m at 10^\circC is heated to proceed produce a difference in length of 0.007m. Calculate the temperature to which it is heated. (Linear expansivity of aluminium = 2.3 x 10\(^{-5}\)K\(^{-1}\)

A

155oC

B

160oC

C

169oC

D

179oC

medium Difficulty

Physics WAEC / WASSCE 2016 Thermal Physics

A mercury-in-glass thermometer read 4cm at ice point and 29cm at steam point. Calculate the temperature when the mercury level is at 9cm

A

13oC

B

20oC

C

33oC

D

38oC

medium Difficulty

Physics WAEC / WASSCE 2016 Heat Energy & Temperature

The continuous stirring in the method of mixtures to determine the specific thermal capacity of a substance ensures

A

continuous dissipation of heat to the room

B

uniform distribution of thermal energy to all parts of the mixture

C

that the thermal energy is confined to the mixture

D

that there is rapid heat exchange

medium Difficulty

Physics WAEC / WASSCE 2016 Heat Energy & Temperature

Which of the following statements is correct about the effect of dissolved salt on the freezing point of water?

A

the freezing point is lowered

B

the freezing point is increased

C

there is no change in the freezing point

D

the change in the freezing point depends on the temperature of the surrounding

medium Difficulty