1) Which of the following does not effect the thinking distance when a car stops. a) Alcohol b) tiredness c) ice on road 2) Which of the following does not effect the braking distance when a car stops. a) loud music b) worn tyres c) wet road d) worn brakes 3) The thinking distance and the braking distance together make the .. a) slowing distance b) emergency distance c) reaction distance d) stopping distance 4) A line which slopes upwards on a velocity time graph means that the object is a) travelling at a constant speed b) accelerating c) decelerating d) stationary 5) An object becomes positively charged when it a) gains electrons b) gains neutrons c) loses electrons d) loses protons 6) Which of the following devices does not use static electricity a) photocopier b) smoke precipitator c) variable resistor d) paint sprayer 7) A negatively charged comb is placed next to a charged plastic ruler and it is attracted. The ruler has a) a positive charge b) negative charge c) no charge 8) The rate of flow of cahrge through a wire is known as a) voltage b) resistance c) current 9) In a 3-pin plug which wire is attached to the fuse? a) neutral b) live c) earth 10) The overall force acting on an object is called the a) balanced force b) unbalanced force c) resultant force d) momentum 11) The unit of force and weight a) Kilograms b) Newtons c) Joules d) watts 12) The unit used for acceleration a) ms-1 b) N/kg c) ms-2 d) Nm 13) What is the work done when a man with a weight of 800N climbs to the top of a 2m ladder? Work done = force x distance moved a) 160W b) 1600W c) 400W d) 4000W 14) The mains supply is a) 50V AC b) 230V DC c) 230V AC d) 50V DC 15) The momentume of an object depends on its a) mass and weight b) mass and speed c) mass and velocity d) mass and acceleration 16) Before and after a collision momentum is a) Lost b) gained c) Conserved 17) If the resultant force on an object is 200N it will a) remain stationary b) travel at constant speed c) slow down or speed up 18) The joining of small atomic nuclei to produce larger atomic nuclei is called a) fission b) radiation c) fusion 19) Which of the following elements are used in nuclear power stations. a) sodium b) krypton c) uranium d) mccarthium 20) This is a device which only allows current to flow in one direction a) variable resistor b) diode c) thermistor d) LDR

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