1) As the mass of an object decreases, its inertia will a) increase b) decrease c) reman the same 2) If a force of 10 newtons is applied to a 4 kg mass, what is the acceleration? a) 0.40 m/s2 b) 14 m/s2 c) 2.5 m/s2  d) 40 m/s2 3) When is the force of gravity greatest between two objects? a) small masses, close together b) small masses, far apart c) large masses, close together d) large masses, far apart 4) Why do the planets stay in orbit around the sun? a) Because Azan told them to stay in place b) magnetism c) gravity d) friction 5) What is the force acting on an object with a mass of 2kg and an acceleration of 5 m/s2? a) 10 N b) 2.5 N c) 0.4 N 6) a push or pull a) gravity b) work c) acceleration d) force 7) unit of force a) newton b) kg c) m/s2 8) What is the mass of an object that accelerates at 2.5 m/s2 when a force of 10 N acts on it? a) 25 kg b) 4 kg c) 0.25 kg 9) the force exerted on an object by gravity a) mass b) gravity c) acceleration d) weight 10) The sum of all the forces acting on a parked car will be a) 0 b) 100 c) negative

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