questions=new Array(); questions[0]=new Array(); //Question 1 definition questions[0][0]="The SI unit of energy is the:"; //Question text questions[0][1]=" Joule (J)"; //Answer option no.1 questions[0][2]=" Watt (W)"; //Answer option no.2 questions[0][3]=" Pascal (Pa)."; //Answer option no.3 questions[0][4]="1"; questions[1]=new Array(); //Question 2 definition questions[1][0]="A vector has:"; //Question text questions[1][1]=" magnitude but no direction"; //Answer option no.1 questions[1][2]=" direction but no magnitude"; //Answer option no.2 questions[1][3]=" magnitude and direction."; //Answer option no.3 questions[1][4]="3"; questions[2]=new Array(); //Question 3 definition questions[2][0]="A temperature of 373 K is the same as:"; //Question text questions[2][1]=" 0°C"; //Answer option no.1 questions[2][2]=" 100°C"; //Answer option no.2 questions[2][3]=" 273°C"; //Answer option no.3 questions[2][4]="2"; questions[3]=new Array(); //Question 4 definition questions[3][0]="An HF radio signal has a frequency of 15 MHz. What is its wavelength?"; //Question text questions[3][1]=" 10 m"; //Answer option no.1 questions[3][2]=" 15 m"; //Answer option no.2 questions[3][3]=" 20 m"; //Answer option no.3 questions[3][4]="3"; questions[4]=new Array(); //Question 5 definition questions[4][0]="Hooke's Law states that within the elastic limit:"; //Question text questions[4][1]=" stress allows a material to return to its orginal state"; //Answer option no.1 questions[4][2]=" strain remains constant until the elastic limit is reached"; //Answer option no.2 questions[4][3]=" the extension of a material is proportional to the force applied."; //Answer option no.3 questions[4][4]="3"; questions[5]=new Array(); //Question 6 definition questions[5][0]="The mass of a body:"; //Question text questions[5][1]=" is a constant that does not change with position"; //Answer option no.1 questions[5][2]=" varies according to the gravitational force present"; //Answer option no.2 questions[5][3]=" increases as the body gets closer to the centre of the earth."; //Answer option no.3 questions[5][4]="1"; questions[6]=new Array(); //Question 7 definition questions[6][0]="The density of an aluminium alloy is 6,900 kg/m³. What is its relative density?"; //Question text questions[6][1]=" 0.69"; //Answer option no.1 questions[6][2]=" 6.9"; //Answer option no.2 questions[6][3]=" 69"; //Answer option no.3 questions[6][4]="2"; questions[7]=new Array(); //Question 8 definition questions[7][0]="The output of a light emitting diode (LED) transmitter peaks in the:"; //Question text questions[7][1]=" visible spectrum"; //Answer option no.1 questions[7][2]=" ultraviolet region"; //Answer option no.2 questions[7][3]=" infrared region."; //Answer option no.3 questions[7][4]="3"; questions[8]=new Array(); //Question 9 definition questions[8][0]="Which one of the following gives the speed of light?"; //Question text questions[8][1]=" 300 m/s"; //Answer option no.1 questions[8][2]=" 300,000 m/s"; //Answer option no.2 questions[8][3]=" 300,000,000 m/s"; //Answer option no.3 questions[8][4]="3"; questions[9]=new Array(); //Question 10 definition questions[9][0]="A force of 20 N is applied to a mass of 4 kg. What acceleration is produced?"; //Question text questions[9][1]=" 5 m/s²"; //Answer option no.1 questions[9][2]=" 40 m/s²"; //Answer option no.2 questions[9][3]=" 80 m/s²"; //Answer option no.3 questions[9][4]="3"; document.write("

"); document.write("

");