Physics/Chemistry Question Preview (ID: 11844)
Newton's 1st And 2nd Laws.
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A book is in a state of rest on a table. What condition would allow the book to continue in its state of rest?
a) an absence of external forces
b) a force pulling the table
c) an absence of gravity
d) a force lifting the table
A cannonball is shot from a cannon. What will eventually happen to the cannonball\'s motion?
a) External forces will cause the cannonball to come to rest.
b) External forces will cause the cannonball to maintain constant velocity.
c) External forces will cause the cannonball to orbit Earth.
d) External forces will cause the cannonball to continue in its state of motion.
A ball is thrown through the air. What condition(s) would enable the ball to continue in its state of motion?
a) a tailwind
b) contact with another object
c) no air resistance or gravity
d) a headwind
A rock is dropped from a cliff. What will eventually happen to the rock\'s motion?
a) Gravity will cause the rock to slow down before it reaches Earth.
b) Friction will cause the rock to continue in its state of motion.
c) The rock will continue falling until Earth exerts a contact force on the rock.
d) Air resistance will cause the rock to accelerate as it falls.
A deer is running at a velocity of 8 miles per hour northward. Which of the following best identifies a factor that may cause the deer\'s velocity to change?
a) the deer continuing to run for an hour
b) the sun setting as the deer runs
c) another deer running along with the first deer
d) a change in the deer\'s direction
Which statement best expresses Newton\'s first law of motion?
a) Objects are constantly speeding up or slowing down.
b) The forces that cause objects to move will decrease over time.
c) For every action, there is an equal and opposite reaction.
d) All objects resist changes to their states of motion.
A brick is accelerating at a rate of 12 m/s2. The brick\'s mass is 3 kg. What is the net force on the brick?
a) 4 N
b) 36 N
c) 15 N
d) 9 N
A box is accelerating at a rate of 2 m/s2. The net force on the box is 8 N. What is the box\'s mass?
a) 4 kg
b) 16 kg
c) 10 kg
d) 6 kg
Which statement best expresses Newton\'s second law of motion?
a) An object\'s acceleration is dependent upon shape and gravity.
b) An object\'s acceleration is dependent upon air resistance and velocity.
c) An object\'s acceleration is dependent upon friction and weight.
d) An object\'s acceleration is dependent upon mass and net force.
A ball has a mass of 5 kg. The net force on the ball is 5 N. What is the ball\'s acceleration?
a) 0 m/s2
b) 25 m/s2
c) 10 m/s2
d) 1 m/s2
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