MULTIPLE CHOICE OF QUESTIONS AND DETAILED
CORRECT ANSWERS ALREADY GRADED A+ AND 100%
GUARANTEE PASS (BRAND NEW!!!!!!)
A slinky is stretched by two forces. When the forces are removed, the slinky
returns to its original length. The slinky has been __________ deformed.
What word completes the sentence? - CORRECT ANSWER-elastically
Johann squeezes a bagel too hard at the supermarket, and it does not
return to its original shape when he removes his hand. The bagel has been
__________ deformed. What word completes the sentence to show that
the bagel has been permanently changed? - CORRECT ANSWER-
inelastically/nonelastically
True or false? In a linear relationship, a change in one variable will always
result in a change of the same size in the other variable. - CORRECT ANSWER-
false
The equation shown is used to calculate moments. The value d is the
__________ from the line of action of the force to the __________.
What two words complete the FIRST gap in this sentence? - CORRECT
ANSWER-perpendicular distance
The diagram shows a door. Label B is 90 cm from the hinges and 60 cm
from the handle. Susie pushes on label B with a force of 10 N. Calculate the
size of the moment produced. - CORRECT ANSWER-9Nm
,True or false? A lever works as a force multiplier. - CORRECT ANSWER-true
To calculate pressure it is necessary to know the force and... what else? -
CORRECT ANSWER-area and surface area
Fluids are which of the following? - CORRECT ANSWER-liquids or gases
What units are used for the gravitational field strength when calculating the
pressure due to a column of liquid? Give the words, not the symbols. -
CORRECT ANSWER-newtons per kilogram
What does h represent in this equation for the pressure at point X in a
column of liquid? p = h ρ g - CORRECT ANSWER-height of the column above
point x
An object is submerged in liquid. The object's weight is equal to the
upthrust on it. Will the object float? - CORRECT ANSWER-yes
An apple is floating at the top of a tub of water. The apple is less dense than
water, so it is displacing a volume of water that has a weight that is
__________ __________ the apple's weight. Which phrase completes
the sentence? - CORRECT ANSWER-equal to
What is the name of the thin layer of air around Earth? - CORRECT ANSWER-
atmosphere
, Julian is 168 cm tall. Frank is 174 cm tall. True or false? There is more
atmospheric pressure at the top of Frank's head than there is at the top of
Julian's head, when they stand next to each other. - CORRECT ANSWER-false
Air molecules colliding with a surface create __________ pressure. What
word completes the sentence? - CORRECT ANSWER-atmospheric
Which experiences more atmospheric pressure: an object at sea level or an
object 200 m above sea level? - CORRECT ANSWER-object at sea level
The atmosphere gets less __________ with increasing altitude. What is
the missing word in this sentence? - CORRECT ANSWER-dense
Velocity is different from speed because it has both size and... what? -
CORRECT ANSWER-direction
A teacher tells his class that a train is moving at 40 miles per hour. Does
this tell them the speed of the train, the velocity of the train, or both? -
CORRECT ANSWER-speed
Two cars are travelling side by side down a straight road in the same
direction. Both cars are travelling at a speed of 22m/s. What is their relative
speed? - CORRECT ANSWER-0 m/s
Two cars are travelling side by side down a straight road in opposite
directions. Both cars are travelling at a speed of 22m/s. What is their
relative speed? - CORRECT ANSWER-44 m/s