UNIZIK Physics 2008/2009 Day 1 Past Questions

Practice each question, then open it to see the full details.

The stope of a straight line displacement time graph indicates the

A.distance traveled
B.uniform velocity
C.uniform acceleration
D.uniform speed

A ball of mass 0.5kg moving at 10m/s collides with another ball of equal mass at rest. If he two balls move off together after the impact, calculate their common velocity.

A.0.2m/s
B.0.5m/s
C.5.0m/s
D.10m/s

A ball is thrown vertically upwards from the ground with an initial velocity of 50m/s , what is the total time spent by the ball in the the air? (g = 10ms^-2)

A.2.5s
B.5.0s
C.10.0s
D.15.0s

The motion of body is simple harmonic if

A.acceleration is directed towards a fixed point and proportional to its distances from the point
B.path of motion is a straight line
C.acceleration is proportional to the square of the distance from a fixed point
D.acceleration is always directed towards a fixed point

Which of the following statements about the gaseous state of matter is not correct? The molecules of a substance in gaseous state.

A.are in constant state of motion
B.have different speeds
C.have a temperature which is a measure of the average kinetic energy
D.have no intermolecular force

Which of the following cannot be used to measure the temperature of a substance?

A.variation of pressure with temperature
B.expansivity of liquid
C.change in resistance of a conductor
D.change of colour with temperature

The clinical thermometer is characterized by having a

A.wide range of temperature
B.wide bore
C.narrow bore
D.constriction

Which of the following is a reason why a concrete floor colder to the bare feet than a mat on the same floor during the rainy season?

A.may is better conductor of heat than the feet
B.may losses heat to the bare floor at a faster rate than a concrete floor
C.concrete floor is a better conductor of heat than the mat
D.may lose heat to the bare feet while the concrete floor extracts heat from them.

In which of the following is the expansion of solids a disadvantage?

A.the fitting of wheels in rim
B.the balance wheel of a watch
C.fire alarms
D.the thermostat

Which of the following best explains why a person suffers a more severe burn when his skin is exposed to steam than when boiling water is poured onto his skin?

A.steam possesses greater heat energy per unit mass than boiling water
B.steam is at a higher temperature than boiling water
C.steam is at a higher speeds more easily over a wider area of the skin than boiling water
D.steam penetrates more deeply into the skin than boiling water.

The temperature at which the water value present in the atmosphere is just sufficient to saturated it is called the

A.ice point
B.boiling point
C.dew point
D.saturation point

Which of the following instruments may be used to measure relative humidity?

A.hydrometer
B.hygrometer
C.manometer
D.barometer

An object is placed 36cm from a convertible lents of focal length 24cm. If a real image, which is 4cm night, is formed, calculate the height of the object.

A.2.0cm
B.4.0cm
C.6.0cm
D.10.0cm

The ability of the eye to focus objects at different distance is called

A.power
B.accommodation
C.long sight
D.normal vision

The unit of inductance is the

A.farad
B.henry
C.ampere
D.coulomb