# Newton's 2nd Law

10 Questions  I  By 11reefeg
2ND LAW physics.

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 1 Compared to a 1kg block of solid iron, a 2kg block of solid iron has twice as much
 A. Inertia
 B. Mass
 C. Volume
 D. All
 E. None
 2 An object weighs 30N on earth. A second object weighs 30N on the moon. Which the greater mass? (Note: due to its size, the moon has less gravity than the earth.)
 A. Object on moon
 B. Object on earth
 C. Same mass
 D. Depends on air resistance
 3 One object had twice as much mass as another object. The first object also has twice as much
 A. Volume
 B. Gravitational acceleration
 C. Inertia
 D. Velocity
 4 An object is propelled along a straight-line path by a force. If the net force were doubled, its acceleration would
 A. Halve
 B. Double
 D. Stay the same
 5 The force of friction on a sliding object is 10 newtons. The applied force needed to maintain a constant velocity is
 A. Less than 10N
 B. More than 10N
 C. 10N
 6 A 10N falling object encounters 4N of air resistance. The net force on the object is
 A. 4N
 B. 0N
 C. 6N
 D. 10N
 E. None of the above
 7 Which of the following has zero acceleration? An object
 A. Moving at a constant velocity
 B. At rest
 C. At equilibrium
 D. All of the above
 8 A 10kg block with an initial velocity of 10m/s slides 10m across a horizontal surface and comes to rest. It takes the block 2 seconds to stop. The stopping force acting on the block is about
 A. 5N
 B. 10N
 C. 25N
 D. 50N
 9 A 10kg block is pushed across a horizontal surface with a horizontal force of 20N against a friction force of 10N. The acceleration of the block in meters per second per second is
 A. 1
 B. 5
 C. 2
 D. 10
 10 A hockey puck is set in motion across a frozen pond. If ice friction and air resistance are neglected, the forced required to keep the puck sliding at constant velocity is
 A. Equal to the weight of the puck
 B. The weight of the puck divided by the mass of the puck
 C. The mass of the puck multiplied by 9.8 m/s
 D. Zero newtons
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