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

What is the most accurate and precise method to measure the thickness of a coin?

2017 Summer

MCQ

CH2 - FORCES AND MOTION

On Earth, a ball is dropped and falls 2.0 m in a vacuum.The acceleration of the ball at 1.0 m is 10 m/s².What is the acceleration of the ball at 0.5 ...

2017 Summer

MCQ

CH2 - FORCES AND MOTION

A skydiver reaches terminal velocity. Then he opens his parachute.What happens to the skydiver as the parachute opens?

2017 Summer

MCQ

CH2 - FORCES AND MOTION

A piece of steel is taken from the Earth to the Moon for an experiment. The gravitational field strength on the Moon is smaller than on the Earth.Whic...

2017 Summer

MCQ

CH1 - MEASUREMENTS AND UNITS

A measuring cylinder containing only water is placed on an electronic balance. A small, irregularly shaped stone is now completely immersed in the wat...

2017 Summer

MCQ

CH2 - FORCES AND MOTION

A boat is travelling at a steady speed in a straight line across the surface of a lake. Which statement about the boat is correct?

2017 Summer

MCQ

CH2 - FORCES AND MOTION

A ball of weight 1.2 N drops through the air at terminal velocity.A sudden gust of wind exerts a horizontal force of 0.5 N on the ball from the left.W...

2017 Summer

MCQ

CH3 - FORCES AND PRESSURE

The diagram shows a uniform bridge, 4.0 m long and weighing 10 000 N.The bridge is pivoted at one end. A force at the other end gradually increases un...

2017 Summer

MCQ

CH2 - FORCES AND MOTION

A bullet of mass 0.10 kg travels horizontally at a speed of 600 m/s. It strikes a stationary wooden block of mass 1.90 kg resting on a frictionless, h...

2017 Summer

MCQ

CH4 - FORCES AND ENERGY

A box of mass $m$ slides down a slope of length $l$ and vertical height $d$ against a frictional force $F$.As the box slides down the slope, it loses ...

2017 Summer