COMBINED SCIENCE: TRILOGY 8464_P_2F_QP PHYSICS PAPER 2F

Label the poles on the iron bar. [1 mark] . The magnet is turned around so that the north pole is closest to the iron bar. Which statement about the iron bar is true? Tick () one box. [ ...

Label the poles on the iron bar. [1 mark] . The magnet is turned around so that the north pole is closest to the iron bar. Which statement about the iron bar is true? Tick () one box. [1 mark] The iron bar does not experience a magnetic force. The iron bar experiences a magnetic force of attraction. The iron bar experiences a magnetic force of repulsion. Question 2 continues on the next page *07* Turn over ► Figure 4 shows an electromagnet being used to separate pieces of different types of metal on a conveyor belt. Figure 4 . Which two of the following types of metal would be attracted to the electromagnet? [2 marks] box Tick () two boxes. Aluminium Copper Magnesium Nickel Steel . What is an advantage of using an electromagnet instead of a permanent magnet to separate the types of metal? [1 mark] Tick () one box. An electromagnet attracts more types of metal than a permanent magnet. An electromagnet can be switched on and off. An electromagnet transfers less energy than a permanent magnet. *0* box . What is the purpose of the iron nail inside the coil of wire? Tick () one box. [1 mark] The iron nail makes the magnetic field stronger. The iron nail reduces the magnetic field to zero. The iron nail reverses the magnetic field. . Which of the following would increase the strength of the electromagnet? Tick () one box. [1 mark] Use a greater current. Use a shorter nail. Use a thinner wire. Turn over ► The stopping distance of a car is the sum of the thinking distance and the braking distance. box . The thinking distance is affected by the reaction time of the driver. Which two of the following can affect the reaction time of the driver? Tick () two boxes. [2 marks] Damaged brakes Taking drugs Tiredness Wet roads Worn tyres