RSUT Physics 2018/2019 Past Questions

A uniform metre rule AB has a mass 15g. A 30g mass is suspended at the 10.0cm mark, and another 5g mass is suspended at the 65.0cm mark. Calculate the position of the fulcrum that will keep the metre rule balanced horizontally.

A rectangular block measures 40cm x 25cm x 5cm and is made of a material of density 7800kg/m. Calculate the pressure the block exerts on the floor when it stands on the smallest of its surfaces.

A ship sinks to the bottom of a 250m deep lake. The atmospheric pressure over the lake is 1.03 x 10⁵Pa. Taking the density of water in the lake to be 1000kg/m³, calculate the pressure exerted on the boat. [acceleration due to gravity = 10m/s²]

Three knives made of steel, plastic and fiat wood respectively is placed on a table for an equal amount of time. The steel knife feels coldest to touch because

Two plane mirrors are inclined at angle 45° one to another. A ray of light has incident angle 20° at the surface of the first mirror. The reflected ray is then incident on the second mirror.
Calculate the angle of reflection at the second mirror.

When the length of the string of a simple pendulum is L, its period is 0.5Π seconds. The period when the length is increased to 4L will be

The coefficient of linear expansion of aluminium is 23 x 10^-6K^-1. If the volume of a pot made with aluminum at temperature T_o is V_o, what will be the change in volume of the pot?

A resonance tube is 40cm long. The second resonance is heard when the tube is three-quarter full. What is the frequency of the turning fork placed near the mouth of the tube? (velocity of sound in air = 334m/s)

A coin is at the bottom of a bucket tilled with a liquid whose refractive index is 1.35. the coin appears to be 12.0cm below the surface of the liquid. Calculate the depth of the liquid.

A car accelerates at 5.0m/s² for 6s, it travels at the speed attained for 20s, and comes to rest after another 4.0s.
Calculate the average velocity of the car during the motion.