UNIZIK Physics 2019/2020 - Model Past Questions

An object is placed 15cm in front of convex mirror and an image is produced 5cm behind the mirror. Calculate the focal length of the mirror.

A simple machine overcomes a load 4000N when a force of 200N is applied. If the velocity ratio of the machine is 25, calculate the efficiency of the machine.

A plane progressive wave is represented by y = 2sin(100t - 0.27πx) where all the symbols have their usual meanings. What is the velocity of the wave?

A temperature of 20°C is the same as:

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.

An object of weight 10N immersed in a liquid displaces a quantity of the liquid. If the liquid displaced weighs 6N, determine the upthrust on the object.

If a copper has a heat capacity of 80J/°C and specific heat capacity of 400 J/kg. Calculate its mass.

Calculate the angle of incidence that will produce an angle of refraction for a light ray incident on the velocities of the light in air and glass one 3.0 x 10⁸m/s and 2.0 x 10⁸m/s respectively

Which of the following is used in a nuclear reactor to slow down fast moving electrons?

Which of the following has the highest surface tension.