Question

1) A vehicle undergoes acceleration when it A) loses speed. B) gains speed. C) changes its direction. D) all of the above 2) The average speed of a horse that gallops 10 kilometers in 30 minutes is A) 15 km/h. B) 40 km/h. C) 20 km/h. D) 30 km/h. 3) A ball rolls along a horizontal track in a certain time. If the track has a dip in it, the time to roll the length of the track will be A) the same. B) less. C) more. 4) While a car travels around a circular track at a constant speed, its A) velocity is zero. B) acceleration is zero. C) inertia is zero. D) none of the above 5) An object covers a distance of 8 meters in the first second of travel, another 8 meters during the next second, and 8 meters again during the third second. Its acceleration is A) 0 m/s2. B) 8 m/s2. C) 5 m/s2. D) 24 m/s2. 6) If an object moves with constant acceleration, its velocity must A) always decrease. B) be constant also. C) change by the same amount each second. D) change by varying amounts depending on its speed. 7) A ball tossed vertically upward rises, reaches its highest point, and then falls back to its starting point. During this time the acceleration of the ball is always A) opposite its velocity. B) directed upward. C) directed downward. D) in the direction of motion. E) none of the above 8) Nellie tosses a ball upward at an angle. Assuming no air resistance, which component of velocity changes with time? A) the horizontal component B) the vertical component C) both of these D) neither of these 9) The time it takes a car to attain a speed of 30 m/s when accelerating from rest at 2 m/s2 is A) 60 s. B) 2 s. C) 30 s. D) 15 s. E) none of the above

          1) A vehicle undergoes acceleration when it
A) loses speed.
B) gains speed.
C) changes its direction.
D) all of the above

2) The average speed of a horse that gallops 10 kilometers in 30 minutes is
A) 15 km/h.
B) 40 km/h.
C) 20 km/h.
D) 30 km/h.

3) A ball rolls along a horizontal track in a certain time. If the track has a dip in it, the time to roll the length of the track will be
A) the same.
B) less.
C) more.

4) While a car travels around a circular track at a constant speed, its
A) velocity is zero.
B) acceleration is zero.
C) inertia is zero.
D) none of the above

5) An object covers a distance of 8 meters in the first second of travel, another 8 meters during the next second, and 8 meters again during the third second. Its acceleration is
A) 0 m/s2.
B) 8 m/s2.
C) 5 m/s2.
D) 24 m/s2.

6) If an object moves with constant acceleration, its velocity must
A) always decrease.
B) be constant also.
C) change by the same amount each second.
D) change by varying amounts depending on its speed.

7) A ball tossed vertically upward rises, reaches its highest point, and then falls back to its starting point. During this time the acceleration of the ball is always
A) opposite its velocity.
B) directed upward.
C) directed downward.
D) in the direction of motion.
E) none of the above

8) Nellie tosses a ball upward at an angle. Assuming no air resistance, which component of velocity changes with time?
A) the horizontal component
B) the vertical component
C) both of these
D) neither of these

9) The time it takes a car to attain a speed of 30 m/s when accelerating from rest at 2 m/s2 is
A) 60 s.
B) 2 s.
C) 30 s.
D) 15 s.
E) none of the above

Added by Steve T.

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