5 marksFoundation
Electromagnetic waves form a continuous spectrum. Radio waves are at one end and gamma rays are at the other.
.1Which type of electromagnetic wave has the longest wavelength?
[1 mark] .2Name the type of electromagnetic wave that is between X-rays and visible light in the spectrum.
[1 mark] .3What is the same for all electromagnetic waves in a vacuum?
[1 mark] .4Give one use of infrared radiation.
[1 mark] .5What type of wave are all electromagnetic waves?
[1 mark] 4 marksFoundation
A spring has an unstretched length of 12.0 cm. When a force is applied, its length becomes 15.0 cm. The spring constant is 30 N/m.
.1Calculate the extension of the spring in metres.
[2 marks] .2Calculate the force applied to the spring.
[2 marks] 4 marksFoundation
A student has a mass of 50 kg.
Gravitational field strength = 9.8 N/kg.
.1Calculate the weight of the student.
[2 marks] .2Which of these is a vector quantity?
[1 mark] .3Name an instrument that can be used to measure weight.
[1 mark] 4 marksFoundation
A car travels at 13 m/s. The driver sees a hazard. The thinking distance is 9 m and the braking distance is 14 m.
.1Calculate the stopping distance.
[1 mark] .2Which of these increases the thinking distance?
[1 mark] .3Calculate the driver's reaction time.
[2 marks] 4 marksFoundation
A student has two bar magnets, some small objects and a plotting compass.
.1The student holds the north pole of one magnet near the north pole of the other. What happens?
[1 mark] .2Which object would be attracted to a magnet?
[1 mark] .3Describe how the student can use the plotting compass to find the direction of the magnetic field at a point near a magnet.
[2 marks] 