Theory

CH3 - FORCES AND PRESSURE

A wooden plank rests in equilibrium on two boulders on opposite sides of a narrow stream. Three forces of size $P$, $Q$ and $R$ act on the plank. How ...

2009 Summer

Theory

CH3 - FORCES AND PRESSURE

The diagrams show two mercury barometers standing side by side. The right-hand diagram shows a tube of bigger diameter, but the diagram is incomplete....

2009 Summer

Theory

CH3 - FORCES AND PRESSURE

A student fills two containers with water (density 1.0 g/cm^3) and two with oil (density 0.8 g/cm^3), as shown in the diagrams.In which container is t...

2009 Summer

Theory

CH3 - FORCES AND PRESSURE

A piston traps a certain mass of gas inside a cylinder. Initially the piston is halfway along the length of the cylinder. The piston is now moved towa...

2009 Summer

Theory

CH3 - FORCES AND PRESSURE

(a) A man squeezes a pin between his thumb and finger, as shown in Fig. 6.1.Fig. 6.1The finger exerts a force of 84 N on the pinhead.The pinhead has a...

2009 Summer

Theory

CH3 - FORCES AND PRESSURE

A water manometer is used to measure the pressure of a gas supply to a house. It gives a reading of $h$ cm of water.Why is it better to use water rath...

2009 Winter

Theory

CH3 - FORCES AND PRESSURE

The diagrams show two swimming pools. One contains fresh water and the other contains salt water. Salt water is more dense than fresh water.At which l...

2009 Winter

Theory

CH3 - FORCES AND PRESSURE

A small amount of air is introduced into the vacuum above the mercury in a mercury barometer tube.The mercury level goes down.Why does the mercury lev...

2009 Winter

Theory

CH3 - FORCES AND PRESSURE

The diagrams show two swimming pools. One contains fresh water and the other contains salt water. Salt water is more dense than fresh water. At which...

2009 Winter

Theory

CH3 - FORCES AND PRESSURE

A water manometer is used to measure the pressure of a gas supply to a house. It gives a reading of $h$ cm of water. [Image] Why is it better to use w...

2009 Winter

MCQ

CH1 - MEASUREMENTS AND UNITS

Which quantity can be measured directly using a micrometer screw gauge?

2019 Summer

MCQ

CH2 - FORCES AND MOTION

The velocity of an object increases from 30 m/s to 50 m/s in 5.0 seconds.What is the average acceleration of the object?

2019 Summer

MCQ

CH2 - FORCES AND MOTION

A heavy metal ball falls vertically downwards through air past four equally spaced levels J, K, L and M.The times taken to fall from one level to the ...

2019 Summer

MCQ

CH2 - FORCES AND MOTION

A body is moved from place X to place Y where the gravitational field strength is different. What happens to its mass and to its weight due to the mov...

2019 Summer

MCQ

CH1 - MEASUREMENTS AND UNITS

The diagrams show four solid blocks with their dimensions and masses.Which block has the greatest density?

2019 Summer

MCQ

CH3 - FORCES AND PRESSURE

A student wishes to determine the spring constant of a spring where it obeys Hooke’s law. Different loads are hung from the spring and its length is...

2019 Summer

MCQ

CH2 - FORCES AND MOTION

A mass of 20 kg is held stationary by a rope passing over a frictionless pulley. What is the tension $T$ in the rope?

2019 Summer

MCQ

CH2 - FORCES AND MOTION

A boat starts moving across a river at velocity $v$ perpendicular to the river bank. The boat encounters a current along the river of velocity $u$, as...

2019 Summer

MCQ

CH2 - FORCES AND MOTION

A ball of mass 0.50 kg falls and hits the floor at 10 m/s. It rebounds at speed 8.0 m/s, as shown. The collision between the ball and the floor las...

2019 Summer

MCQ

CH4 - FORCES AND ENERGY

An object falls from the top of a building that is 25 m high. Air resistance is negligible.What is the speed of the object when it hits the ground?

2019 Summer