MCQ

Kinetic Energy

A projectile is launched at 45° to the horizontal with initial kinetic energy $E$. Assuming air resistance to be negligible, what will be the kin...

2009 Winter

MCQ

Kinetic Energy

Two trolleys are placed together on a horizontal runway with a compressed spring between them. When they are released, the 2 kg trolley moves to th...

2009 Winter

MCQ

Kinetic Energy

A raindrop of mass $m$ is falling vertically through the air with a steady speed $v$. The raindrop experiences a retarding force $kv$ due to the air, ...

2010 Winter

MCQ

Kinetic Energy

The kinetic energy of a vehicle of mass 1000 kg is $4.5 \times 10^5$ J. It is stopped by applying a constant braking force of 6000 N. What is its sto...

2010 Winter

Theory

Kinetic Energy

(a) Explain what is meant by work done. [1] (b) A car is travelling along a road that has a uniform downhill gradient, as shown in Fig. 2.1. ...

2011 Summer

MCQ

Kinetic Energy

The diagram shows a particle X, with kinetic energy $E_k$, about to collide with a stationary particle Y. Both particles have the same mass. After co...

2011 Winter

MCQ

Kinetic Energy

A trolley runs from P to Q along a track. At Q its potential energy is 50 kJ less than at P. At P, the kinetic energy of the trolley is 5 kJ. Betwe...

2011 Winter

MCQ

Kinetic Energy

When a horizontal force $F$ is applied to a frictionless trolley over a distance $s$, the kinetic energy of the trolley changes from 4 J to 8 J. If a...

2011 Winter

Theory

Kinetic Energy

(a) Define (i) force, [1] (ii) work done. [1] (b) A force $F$ acts on a mass $m$ along a straight line for a distance $s$. The accelerati...

2011 Winter

MCQ

Kinetic Energy

A solid rubber ball has a diameter of 8.0 cm. It is released from rest with the top of the ball 80 cm above a horizontal surface. It falls vertically ...

2013 Summer

Theory

CH2 - MEASUREMENT TECHNIQUES

Measurements made for a sample of metal wire are shown in Fig. 1.1. Fig. 1.1 (a) State the appropriate instruments used to make each of these meas...

2011 Summer

Theory

Kinetic Energy

(a) Explain what is meant by work done. [1] (b) A car is travelling along a road that has a uniform downhill gradient, as shown in Fig. 2.1. ...

2011 Summer

Theory

CH5 - FORCES, DENSITY & PRESSURE

(a) Explain what is meant by centre of gravity. (b) Define moment of a force. (c) A student is being weighed. The student, of weight $W$, stands 0.3...

2011 Summer

Theory

CH9 - DEFORMATION OF SOLIDS

(a) Define, for a wire, (i) stress,    [1] (ii) strain.    [1] (b) A wire of length 1.70 m hangs vertically from a fixed point,...

2011 Summer

Theory

CH20 - D.C. CIRCUITS

(a) A variable resistor is used to control the current in a circuit, as shown in Fig. 5.1. The variable resistor is connected in series with a 12V po...

2011 Summer

Theory

CH5 - FORCES, DENSITY & PRESSURE

(a) State two assumptions of the simple kinetic model of a gas.   [2] (b) Use the kinetic model of gases and Newton's laws of motion to exp...

2011 Summer

Theory

CH15 - SUPERPOSITION

(a) Explain the term interference.   [1] (b) A ripple tank is used to demonstrate interference between water waves. Describe (i) the appa...

2011 Summer

Theory

CH1 - PHYSICAL QUANTITIES & UNITS

(a) Distinguish between scalar quantities and vector quantities. [2] (b) In the following list, underline all the scalar quantities. accelerati...

2011 Summer

Theory

CH1 - PHYSICAL QUANTITIES & UNITS

(a) A sphere of radius $R$ is moving through a fluid with constant speed $v$. There is a frictional force $F$ acting on the sphere, which is given by ...

2011 Summer

Theory

Potential Energy

(a) (i) Explain what is meant by work done. [1] (ii) Define power. [1] (b) Fig. 3.1 shows part of a fairground ride with a carriage on rai...

2011 Summer