1) What is the name given to a single force that has the same effect as all the forces acting on an object? a) Reaction force b) Resultant force c) Reflex force d) Response force 2) If two force arrows are the same length, what does this indicate about the forces they represent? a) They are acting in the same direction b) They are the same size c) They are the same type of force d) They are different sizes 3) Which of these is a friction force? a) Thrust b) Weight c) Air resistance d) Buoyance 4) Which of these statements about friction is not true? a) Friction acts in the same direction as thrust b) Friction tends to slow objects down c) Friction can be both useful and problematic d) Friction can occur in liquids and gases 5) If the resultant force on an object is 0N which of the following is true? a) The object must be stationary b) Forces acting on the object are unbalanced c) The object is accelerating d) Forces acting on the object are balanced 6) A car is travelling at a constant speed on a flat road. Which of the following cannot be true? a) The forces acting on the car are balanced b) The resultant force is zero c) The force from the engine is the same as all the friction forces d) The force from the engine is greater than the friction forces 7) If the resultant force is not zero which of these is true? a) The object will move at a constant speed b) The object will either accelerate or deccelerate c) All forces acting on the object are balanced d) The object will always change direction 8) Which of the following is the correct equation for working out velocity? a) velocity = displacement x time b) velocity = displacement / time 9) Which of the following statements about speed and velocity is true? a) velocity is speed in a particular direction b) Speed is velocity in a particular direction c) Velocities can only be positive d) Speed can be positive or negative 10) What units is acceleration measured in? a) metres per second b) metres squared per second c) metres squared per second squared d) metres per second squared

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