Theory

CH4 - FORCES AND ENERGY

Electricity can be obtained from different energy resources.Which energy resource is used to obtain electricity without producing heat to boil water?A...

2009 Summer

Theory

CH4 - FORCES AND ENERGY

Four people of equal weight on a beach use different routes to get to the top of a sea wall. Which person produces the greatest average power?[Table_1...

2009 Summer

Theory

CH4 - FORCES AND ENERGY

A wind turbine has blades, which sweep out an area of diameter 25 m.(a) The wind is blowing directly towards the wind turbine at a speed of 12 m/s. At...

2009 Summer

Theory

CH4 - FORCES AND ENERGY

The diagram shows a microphone being used in an interview.Which energy change takes place in the microphone?[Table_1] | | input energy | output ene...

2009 Winter

Theory

CH4 - FORCES AND ENERGY

The table shows the times taken for four children to run up a set of stairs. Which child's power is greatest?[Table_1: mass of child / kg and time / s...

2009 Winter

Theory

CH4 - FORCES AND ENERGY

The table shows the times taken for four children to run up a set of stairs.Which child’s power is greatest?[Table_1]| | mass of child / kg | time /...

2009 Winter

Theory

CH4 - FORCES AND ENERGY

The diagram shows a microphone being used in an interview. Which energy change takes place in the microphone?input energyoutput energyA chemicalelectr...

2009 Winter

Theory

CH4 - FORCES AND ENERGY

A farmer uses an electric pump to raise water from a river in order to fill the irrigation channels that keep the soil in his fields moist.Every minut...

2009 Winter

Theory

CH4 - FORCES AND ENERGY

A farmer uses an electric pump to raise water from a river in order to fill the irrigation channels that keep the soil in his fields moist. Every m...

2009 Winter

Theory

CH4 - FORCES AND ENERGY

Energy is stored in a battery and in a box of matches. Which type of energy is stored in each of them?[Table_1]| | a battery | a box of matches ...

2010 Summer

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