Question

12. While an object near the Earth's surface is in free fall, its ...... A) speed increases. C) mass increases. B) acceleration increases. D) speed and acceleration increase. 13. One object is dropped, and another is thrown down from the same height. Neglecting air resistance, as they both fall the acceleration of the dropped object is ...... A) greater than the thrown object B) less than the thrown object C) same as thrown object 14. While standing at the edge of a cliff, one ball is thrown straight up, and another ball is thrown straight down at the same initial speed as the first ball. Neglecting air resistance, which ball will hit the ground below the cliff with the greater speed? A) the ball thrown upward B) the ball thrown downward C) neither one - they both hit the ground with the same speed, but at different times 15. Your weight is ...... A) the same as your mass C) a measure of your inertia B) the gravitational attraction between you and Earth D) all of these 16. Compared to the mass of an object on Earth, the mass of the same object on the Moon is ...... A) less B) more C) the same 17. An object weighing 30 N on Earth weighs ______ on the Moon. A) more B) less C) the same 18. If the net force acting on an object is doubled, then the object's acceleration will be ...... A) half B) double C) quadruple D) the same 19. Which has zero acceleration? An object ...... A) at rest C) in mechanical equilibrium B) moving at constant velocity D) all of these 20. If the force of friction on a sliding object is 15 N, then the applied force needed to maintain a constant velocity is ...... A) less than 15 N B) equal to 15 N C) more than 15 N 21. The surface area of an object will affect the amount of it may encounter. A) static friction B) sliding friction C) air resistance 22. When a falling object has reached its terminal velocity, its acceleration is ...... A) increasing B) zero C) "g" 23. When a falling object reaches terminal velocity, the air resistance acting on it equals the ...... of the object. A) weight B) mass C) area D) speed

          12. While an object near the Earth's surface is in free fall, its ......
A) speed increases. C) mass increases.
B) acceleration increases. D) speed and acceleration increase.
13. One object is dropped, and another is thrown down from the same height. Neglecting air
resistance, as they both fall the acceleration of the dropped object is ......
A) greater than the thrown object B) less than the thrown object C) same as thrown object
14. While standing at the edge of a cliff, one ball is thrown straight up, and another ball is thrown
straight down at the same initial speed as the first ball. Neglecting air resistance, which ball
will hit the ground below the cliff with the greater speed?
A) the ball thrown upward
B) the ball thrown downward
C) neither one - they both hit the ground with the same speed, but at different times
15. Your weight is ......
A) the same as your mass C) a measure of your inertia
B) the gravitational attraction between you and Earth D) all of these
16. Compared to the mass of an object on Earth, the mass of the same object on the Moon is ......
A) less B) more C) the same
17. An object weighing 30 N on Earth weighs __________ on the Moon.
A) more B) less C) the same
18. If the net force acting on an object is doubled, then the object's acceleration will be ......
A) half B) double C) quadruple D) the same
19. Which has zero acceleration? An object ......
A) at rest C) in mechanical equilibrium
B) moving at constant velocity D) all of these
20. If the force of friction on a sliding object is 15 N, then the applied force needed to maintain a
constant velocity is ......
A) less than 15 N B) equal to 15 N C) more than 15 N
21. The surface area of an object will affect the amount of ____ it may encounter.
A) static friction B) sliding friction C) air resistance
22. When a falling object has reached its terminal velocity, its acceleration is ......
A) increasing B) zero C) "g"
23. When a falling object reaches terminal velocity, the air resistance acting on it equals the ......
of the object.
A) weight B) mass C) area D) speed

12. While an object near the Earth's surface is in free fall, its ......
A) speed increases. C) mass increases.
B) acceleration increases. D) speed and acceleration increase.
13. One object is dropped, and another is thrown down from the same height. Neglecting air
resistance, as they both fall the acceleration of the dropped object is ......
A) greater than the thrown object B) less than the thrown object C) same as thrown object
14. While standing at the edge of a cliff, one ball is thrown straight up, and another ball is thrown
straight down at the same initial speed as the first ball. Neglecting air resistance, which ball
will hit the ground below the cliff with the greater speed?
A) the ball thrown upward
B) the ball thrown downward
C) neither one - they both hit the ground with the same speed, but at different times
15. Your weight is ......
A) the same as your mass C) a measure of your inertia
B) the gravitational attraction between you and Earth D) all of these
16. Compared to the mass of an object on Earth, the mass of the same object on the Moon is ......
A) less B) more C) the same
17. An object weighing 30 N on Earth weighs on the Moon.
A) more B) less C) the same
18. If the net force acting on an object is doubled, then the object's acceleration will be ......
A) half B) double C) quadruple D) the same
19. Which has zero acceleration? An object ......
A) at rest C) in mechanical equilibrium
B) moving at constant velocity D) all of these
20. If the force of friction on a sliding object is 15 N, then the applied force needed to maintain a
constant velocity is ......
A) less than 15 N B) equal to 15 N C) more than 15 N
21. The surface area of an object will affect the amount of it may encounter.
A) static friction B) sliding friction C) air resistance
22. When a falling object has reached its terminal velocity, its acceleration is ......
A) increasing B) zero C) "g"
23. When a falling object reaches terminal velocity, the air resistance acting on it equals the ......
of the object.
A) weight B) mass C) area D) speed

Added by Walter S.

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