QUESTIONS WITH CORRECT
VERIFIED ANSWERS | LATEST A+ GRADED
STUDY GUIDE AND COMPLETE
EXAM PREPARATION
1 0. In class, a wooden block was suspended from above by a string. A second sting
attached to the bottom of the block hung below. When the lower string was pulled
quickly, the lower string broke. This illustrated the block's -
✔✔✔ANSWER>>>>mass
1 1. A truck is moving at constant velocity. Inside the storage compartment, a rock
is dropped from the midpoint of the ceiling just before the driver slams on the brakes.
The rock hits the floor - ✔✔✔ANSWER>>>>ahead of the midpoint of the ceiling
1 2. Which of the following statements reflect Aristotle's views of motion? -
CORRECT ANSWER>>>>the sun circles the Earth, an object in its proper place
will not move unless acted on by a force, and heavier objects fall faster
1 3. An object is in mechanical equilibrium if the net force on it is - CORRECT
ANSWER>>>>zero
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,1 4. When a book weighing 3 N is lying at rest on a table, the support force that
the table exerts on the book is due to - ✔✔✔ANSWER>>>>electrical forces
between atoms in the book and table
1 5. A block is dragged in a straight line path across a level surface by a force of 6
N. What's the force of friction between the block and the surface if the block is
speeding up? - CORRECT ANSWER>>>>less than 6 N
1 6. According to Galileo, the natural tendency of an object is to - CORRECT
ANSWER>>>>resist the change in motion
1 7. Newton's first law of motion: every object continues in its state of rest, or of
uniform motion in a straight line, unless it is compelled to change that state by forces
impressed upon it. This law is also called the law of - ✔✔✔ANSWER>>>>inertia
1 8. Which of the following theories was first published by
Copernicus? a. heavier objects fall faster
b. a force is required to change the motion of an object
c. the sun circles the Earth
d. None of these - ✔✔✔ANSWER>>>>D. none of these (he came up with the Earth
circles the Sun)
19. Concerning a road trip, the biggest concern while figuring drive time is ,
while driving through a speed trap is , while merging onto an expressway is
, and
while driving along a one-way street is . - ✔✔✔ANSWER>>>>average speed,
instantaneous speed, acceleration, velocity
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, 20. If two 5 pound forces pull on an object in opposite directions, the net force is -
CORRECT
ANSWER>>>>0 pounds
2 1. A tow truck exerts a force of 3000 N on a car, accelerating it at 3 meters per
second. What's the mass of the car? - ✔✔✔ANSWER>>>>1000 kg
When an object falls through the air, its velocity increases and its acceleration -
CORRECT
ANSWER>>>>decreases
1 . Consider a man standing behind a car and pushing it without being able to
move the car. Which of the following are an action-reaction force pair? -
✔✔✔ANSWER>>>>a man pushing the car and the car pushing the man
2 . You run 12 miles at 12 mi/hr, but then you get tired and walk 12 miles back at
4 mi/hr. What's your average speed for the entire trip? - ✔✔✔ANSWER>>>>6
mi/hr
3 . A horse exerts 500 N of force on a heavy wagon. The wagon pulls back on the
horse with an equal force. The wagon still accelerates because -
✔✔✔ANSWER>>>>nevertheless there is still an unbalanced force on the wagon
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