1) Which statement is false about vector quantities? a) They have a size and direction b) The size of the arrow shows the size of the vector c) They can be shown as an arrow d) They have a magnitude but no direction 2) Which of these is not a vector quantity? a) Force b) Weight c) velocity d) speed e) Acceleration f) Displacement 3) Which of these is not a contact force? a) Friction b) Air Resistance c) Tension d) Reaction force e) Weight 4) Name an equation that links weight (W), mass (m) and gravitational field strength (g). a) W = m / g b) W = mg c) g = Wm d) m = Wg e) m = g / W 5) What is the scientific unit for weight? a) kg b) grams c) Newtons d) Pounds e) Ounces f) stones 6) What is the resultant force if Tom pulls the trolley 30N right and Rob pulls it 50N left? a) 20N b) 20N right c) 30 d) 30N left e) 20N left f) 50N left 7) Name a formula that links Work done (W), Force (F) and distance (s). a) W = Fs b) W = Fd c) W = F/d d) W = F/s e) F = Wd f) s = FW 8) What is work done measured in? a) Newtons (N) b) Joules (J) c) Kilograms (kg) d) Metres (m)  9) Name a formula that links Force (F), spring constant (k) and extension (e). a) F = ke b) F = k/e c) F = e/k d) e = k/F e) k = e/F 10) When the force applied to a spring is too large, the graph is no longer directly proportional.  It has reached its _______. a) Hookes law b) limit of proportionality c) spring constant 11) What are the units for acceleration? a) m b) M c) m/s d) s/m e) m/s2 f) ms2 12) On a displacement/time graph, what does a horizontal line mean? a) Constant velocity b) Constant acceleration c) Stationary 13) On a displacement/time graph, what does a positive gradient (up slope) mean? a) Constant velocity towards the start b) Constant velocity away from the start c) Accelerating d) Stationary 14) On a displacement/time graph, what does a negative gradient (down slope) mean? a) Moving towards the start b) Moving away from the start c) Accelerating d) Stationary 15) Estimate walking speed a) 0.5m/s b) 1.5m/s c) 2.5m/s d) 5m/s 16) Estimate cycling speed a) 0.5 m/s b) 1.5m/s c) 2.5 m/s d) 5m/s 17) A man gets on a bike and accelerates to a typical speed from stationary in 10 seconds.  Calculate the acceleration. a) 0.5 m/s2 b) 0.025 m/s c) 5 m/s2 d) 25 m/s e) 25 m/s2 f) 0.5 m/s 18) Estimate a cars speed a) 5 m/s b) 1.5 m/s c) 25 m/s d) 50 m/s e) 100 m/s 19) Estimate a planes speed a) 5 m/s b) 10 m/s c) 100 m/s d) 200 m/s e) 250 m/s 20) Newton's __________ law is "a resultant force is needed for something to change speed". a) First b) Second c) Third d) coles 21) Which formula describes Newton's second law? a) F = ma b) F = m/a c) F = a/m d) m = a/F e) a = m/F 22) When two objects interact, the forces they exert on each other are ____________. a) Clear and present b) Equal and opposite c) up and down d) left and right e) AC ad DC f) contact and non-contact

P2 Topic 5 Forces

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