PHYSICS EXAMS QUESTIONS AND VERIFIED ANSWERS, 100%
GUARANTEE
A bullet in a gun is accelerated from the firing chamber to the end of the barrel at an averagerate
of 6.20 × 105 m/s2 for 8.10 × 10-4 s. What is its muzzle velocity (that is, its final velocity)? -
502 m/s
If car A passes car B, then car A must be _____________. - moving faster than car B, but
not necessarily acceleration
Which one of the following is NOT consistent with a car which is accelerating? - A car is
moving at a high speed in a straight line
A fullback is running down the football field in a straight line. He starts at the 0-yard line at 0
seconds. At 1 second, he is on the 10-yard line; at 2 seconds, he is on the 20-yard line; at 3
seconds, he is on the 30-yard line; and at 4 seconds, he is on the 40-yard line. This is evidence
that - he is moving at a constant speed (on average).
If an object is moving eastward and slowing down, then the direction of its velocity vector is
_____________. - eastward
If an object is moving eastward and slowing down, then the direction of its acceleration vector is
_____________. - westward
Which one of the following quantities is NOT a vector? - 20 m/s
Suppose you take a trip that covers 180 km and takes 3 hours to make. Your average speed is -
60 km/h.
A ball is thrown 5m straight up. It takes 0.2 s to return back to the start position. What is the ball
displacement after that time? - 0m
,The average speed of an object which moves 10 kilometers (km) in 30 minutes is
_____________. - 20 km/hr
What is the acceleration of a car that maintains a constant velocity of 55 mi/hr for 10.0 seconds?
- 0
As an object speeds up uniformly, its _____________. - speed increases
The speed-time graph for a particle moving at constant speed is a straight-line _____________ to
the time axis. - parallel
If it takes one minute for an airplane to reach speed 100 m/s from start to take-off, how long is
the take-off path (airplane displacement in that time)? - 3 km
A baseball pitcher delivers a fastball. During the throw, the speed of the ball increases from 0 to
30.0 m/s over a time of 0.100 seconds. The average acceleration of the baseball is
_____________ m/s. - 300
On takeoff, a rocket accelerates from rest at a rate of 50.0 m/s2 for exactly 1 minute. The rocket's
speed after this minute of steady acceleration will be _____________ m/s. - 3.00 x 10
The distance-time graph represents the position of an object moving in a straight line. What is
the speed of the object during the time interval t = 2.0 seconds to t = 4.0 seconds? - 10.0
m/s
Renatta Oyle is again found driving her '86 Yugo down Lake Avenue, leaving the following trail
of oil drops on the pavement. If her car is moving from right to left, then... - her velocity
has a leftward direction and her acceleration has a leftward direction.
A powerful motorcycle can accelerate from rest to 26.8 m/s (100 km/h) in only 3.90 s. How far
does it travel in that time? - 52.3 m
, If an object has an acceleration of 0 m/s, then one can be sure that the object is not
_____________. - changing velocity
A ball is kicked with an initial velocity of 16 m/s in the horizontal direction and 12 m/s in the
vertical direction. At what speed does the ball hit the ground? ( the same like the intial velocity) -
20m/s
Verify the ranges for the projectile's motion for an initial velocity of 50 m/s at the given initial
angles = 45 degrees. (g = 9.8 m/s2) - 255 m
A ball is rolled horizontally off a table with an initial speed of 0.24 m/s. A stopwatch measures
the ball's trajectory time from the table to the floor to be 0.30 s. What is the height of the table?
(g = 9.8 m/s2 and air resistance is negligible) - 0.44 m
A ball is rolled horizontally off a table with an initial speed of 0.24 m/s. A stopwatch measures
the ball's trajectory time from the table to the floor to be 0.30 s. How far away from the table
does the ball land? (g = 9.8 m/s2 and air resistance is negligible) - 0.072 m
A fireman stays away from a burning building and directs a stream of water from a fire hose at
an angle of 30.0° above the horizontal. If the initial speed of the stream is 40.0 m/s, what is the
maximum height of the water? - 20.4 m
Which type of quantity is characterized by both magnitude and direction? - vector
A student adds two vectors with magnitudes of 200 and 40. Which one of the following is the
closest possible choice for the magnitude of the resultant? - 200
A boat moves through the water in a river at a speed of 8 m/s relatives to the water. The boat
makes a trip downstream and then makes a return trip upstream to the original starting place.
Which trip takes longer? - the upstream trip
GUARANTEE
A bullet in a gun is accelerated from the firing chamber to the end of the barrel at an averagerate
of 6.20 × 105 m/s2 for 8.10 × 10-4 s. What is its muzzle velocity (that is, its final velocity)? -
502 m/s
If car A passes car B, then car A must be _____________. - moving faster than car B, but
not necessarily acceleration
Which one of the following is NOT consistent with a car which is accelerating? - A car is
moving at a high speed in a straight line
A fullback is running down the football field in a straight line. He starts at the 0-yard line at 0
seconds. At 1 second, he is on the 10-yard line; at 2 seconds, he is on the 20-yard line; at 3
seconds, he is on the 30-yard line; and at 4 seconds, he is on the 40-yard line. This is evidence
that - he is moving at a constant speed (on average).
If an object is moving eastward and slowing down, then the direction of its velocity vector is
_____________. - eastward
If an object is moving eastward and slowing down, then the direction of its acceleration vector is
_____________. - westward
Which one of the following quantities is NOT a vector? - 20 m/s
Suppose you take a trip that covers 180 km and takes 3 hours to make. Your average speed is -
60 km/h.
A ball is thrown 5m straight up. It takes 0.2 s to return back to the start position. What is the ball
displacement after that time? - 0m
,The average speed of an object which moves 10 kilometers (km) in 30 minutes is
_____________. - 20 km/hr
What is the acceleration of a car that maintains a constant velocity of 55 mi/hr for 10.0 seconds?
- 0
As an object speeds up uniformly, its _____________. - speed increases
The speed-time graph for a particle moving at constant speed is a straight-line _____________ to
the time axis. - parallel
If it takes one minute for an airplane to reach speed 100 m/s from start to take-off, how long is
the take-off path (airplane displacement in that time)? - 3 km
A baseball pitcher delivers a fastball. During the throw, the speed of the ball increases from 0 to
30.0 m/s over a time of 0.100 seconds. The average acceleration of the baseball is
_____________ m/s. - 300
On takeoff, a rocket accelerates from rest at a rate of 50.0 m/s2 for exactly 1 minute. The rocket's
speed after this minute of steady acceleration will be _____________ m/s. - 3.00 x 10
The distance-time graph represents the position of an object moving in a straight line. What is
the speed of the object during the time interval t = 2.0 seconds to t = 4.0 seconds? - 10.0
m/s
Renatta Oyle is again found driving her '86 Yugo down Lake Avenue, leaving the following trail
of oil drops on the pavement. If her car is moving from right to left, then... - her velocity
has a leftward direction and her acceleration has a leftward direction.
A powerful motorcycle can accelerate from rest to 26.8 m/s (100 km/h) in only 3.90 s. How far
does it travel in that time? - 52.3 m
, If an object has an acceleration of 0 m/s, then one can be sure that the object is not
_____________. - changing velocity
A ball is kicked with an initial velocity of 16 m/s in the horizontal direction and 12 m/s in the
vertical direction. At what speed does the ball hit the ground? ( the same like the intial velocity) -
20m/s
Verify the ranges for the projectile's motion for an initial velocity of 50 m/s at the given initial
angles = 45 degrees. (g = 9.8 m/s2) - 255 m
A ball is rolled horizontally off a table with an initial speed of 0.24 m/s. A stopwatch measures
the ball's trajectory time from the table to the floor to be 0.30 s. What is the height of the table?
(g = 9.8 m/s2 and air resistance is negligible) - 0.44 m
A ball is rolled horizontally off a table with an initial speed of 0.24 m/s. A stopwatch measures
the ball's trajectory time from the table to the floor to be 0.30 s. How far away from the table
does the ball land? (g = 9.8 m/s2 and air resistance is negligible) - 0.072 m
A fireman stays away from a burning building and directs a stream of water from a fire hose at
an angle of 30.0° above the horizontal. If the initial speed of the stream is 40.0 m/s, what is the
maximum height of the water? - 20.4 m
Which type of quantity is characterized by both magnitude and direction? - vector
A student adds two vectors with magnitudes of 200 and 40. Which one of the following is the
closest possible choice for the magnitude of the resultant? - 200
A boat moves through the water in a river at a speed of 8 m/s relatives to the water. The boat
makes a trip downstream and then makes a return trip upstream to the original starting place.
Which trip takes longer? - the upstream trip
