(T orF)

E) 186,000 miles

correct choice.)

A) 32 ft/s2 vertically downward

B) 40 km southwest

C) 9.8 m/s2

D) -120 m/s

E) 186,000 mi

A) The displacement is either greater than or equal to the distance traveled.

B) The displacement is always equal to the distance traveled.

C) The displacement is either less than or equal to the distance traveled.

D) The displacement can be either greater than, smaller than, or equal to the distance traveled.

A) only when the velocity is increasing at a constant rate

B) only when the velocity is decreasing at a constant rate

C) when the velocity is constant

D) always

E) never

A) greater than 70 km/h.

B) equal to 70 km/h.

C) less than 70 km/h.

D) exactly 38 km/h.

E) It cannot be determined from the information given because we must also know directions traveled.

(T or F)

(t or f)

A) An object has velocity directed east and acceleration directed west.

B) An object has velocity directed east and acceleration directed east.

C) An object has zero velocity but non-zero acceleration.

D) An object has constant non-zero acceleration and changing velocity.

E) An object has constant non-zero velocity and changing acceleration.

(t or f)

(t or f)

A) The acceleration is toward the east.

B) Since the car is slowing down, its acceleration must be negative.

C) The acceleration is zero.

D) The acceleration is toward the west.

A) average speed

B) instantaneous speed

C) average acceleration

D) instantaneous acceleration

E) displacement

A) travels 2.0 m in every second.

B) is traveling at 2.0 m/s.

C) is decreasing its velocity by 2.0 m/s every second.

D) is increasing its velocity by 2.0 m/s every second.

A) Its acceleration is in the +x direction.

B) Its acceleration is in the -x direction.

C) Its acceleration is zero.

D) Its acceleration is decreasing in magnitude as the car slows down.

A) Its acceleration is positive.

B) Its acceleration is negative.

C) Its acceleration is zero.

D) Its acceleration is decreasing in magnitude as the car slows down.

A) The acceleration is constantly increasing.

B) The acceleration is constantly decreasing.

C) The acceleration is a constant non-zero value.

D) The acceleration is equal to zero.

B) The acceleration could be negative.

C) The acceleration could be zero.

A) The acceleration could be positive.

B) The acceleration could be negative.

C) The acceleration could be zero.

D) The acceleration must be zero.

A) This can only occur if there is no acceleration.

B) The acceleration is constant.

C) This can occur only when the velocity is zero.

D) The acceleration must be constantly increasing.

E) The acceleration must be constantly decreasing.

A) Before marker 1

B) At marker 1

C) Between marker 1 and marker 2

A) is upward

B) is downward

C) is zero

D) reverses from upward to downward

E) reverses from downward to upward

A) On the way up, its acceleration is downward and its velocity is upward, and at the highest point both its velocity and acceleration are zero.

B) On the way down, both its velocity and acceleration are downward, and at the highest point both its velocity and acceleration are zero.

C) Throughout the motion, the acceleration is downward, and the velocity is always in the same direction as the acceleration.

D) The acceleration is downward at all points in the motion.

E) The acceleration is downward at all points in the motion except that is zero at the highest point.

A) zero

B) slightly less than g

C) exactly g

D) slightly greater than g

A) Both its velocity and its acceleration point upward.

B) Its velocity points upward and its acceleration points downward.

C) Its velocity points downward and its acceleration points upward.

D) Both its velocity and its acceleration points downward.

A) Its acceleration is constantly increasing.

B) Its acceleration is constant.

C) Its acceleration is constantly decreasing.

D) Its acceleration is zero.

E) Its acceleration is greater than g.

A) h/4

B) h/2

C) h

D) 2h

E) 4h

A) 4T

B) 2T

C) T

D) T/2

E) T/4

A) 4a

B) 2a

C) a

D) a/2

E) a/4

A) increases.

B) decreases.

C) stays constant.

D) increases at first, but then stays constant.

E) decreases at first, but then stays constant.

ground below

A) the green ball will be moving faster than the blue ball.

B) the blue ball will be moving faster than the green ball.

C) the two balls will have the same speed.

A) increases.

B) remains constant.

C) decreases.

D) cannot be determined from the information given.

A) The one thrown up is traveling faster.

B) The one thrown down is traveling faster.

C) They are traveling at the same speed.

D) It is impossible to tell because the height of the building is not given.

their accelerations is correct?

A) The acceleration of A is greater than the acceleration of B.

B) The acceleration of B is greater than the acceleration of A.

C) The two bricks have exactly the same acceleration.

D) Neither brick has any acceleration once it is released.

A) a horizontal straight line.

B) a vertical straight line.

C) a straight line making an angle with the time axis.

D) a parabolic curve.

A) the distance traveled.

B) velocity.

C) acceleration.

D) displacement.

A) moving with constant non-zero speed.

B) moving with constant non-zero acceleration.

C) at rest.

D) moving with increasing speed.

A) moving with constant non-zero speed.

B) moving with constant non-zero acceleration.

C) at rest.

D) moving with increasing acceleration.

A) They will have traveled the same distance.

B) The truck will not have moved.

C) The car will have travelled further than the truck.

D) The truck will have travelled further than the car.

A) graph a

B) graph b

C) graph c

D) graph d

E) graph e

A) only graph a

B) only graph b

C) graphs a and b

D) graphs b and c

E) graphs c and d

E) The cars meet at time t = 10 s.

According to this graph, which statements about these cars must be true? (There could be more than one correct choice.)

A) The magnitude of the acceleration of car C is greater than the magnitude of the acceleration of car D.

B) The magnitude of the acceleration of car C is less than the magnitude of the acceleration of car D.

C) At time t = 10 s, both cars have the same velocity.

D) Both cars have the same acceleration.

E) The cars meet at time t = 10 s.

A) only increases.

B) only decreases.

C) increases and then decreases.

D) decreases and then increases.

E) remains constant.

A) 0 s

B) 1 s

C) 2 s

D) 3 s

E) 4 s

A) acceleration.

B) velocity.

C) displacement.

D) position.

(t or f)

are added together, the magnitude of the sum

A) is equal to 2.0 m.

B) is equal to 12 m.

C) is equal to 8.6 m.

D) could be as small as 2.0 m or as large as 12 m.

A) 40 mm B) 80 mm C) 20 mm D) 10 mm

(t or f)

(t or f)

A) 60° B) 270° C) 0° D) 90° E) 180°

A) 180° B) 0° C) 360° D) 270° E) 90°

following statements?

A) Vectors M and N are at right angles to each other.

B) The magnitude of M is the negative of the magnitude of N .

C) Vectors M and N have the same magnitudes.

D) Vectors M and N point in the same direction.

A) 90° to 180°

B) 0° to 90°

C) 270° to 360°

D) 180° to 270°

E) It cannot be determined without additional information.

northward components are equal. Which one of the following statements must be correct for

these two vectors?

A) Vector A is parallel to vector B .

B) The magnitude of vector A must be equal to the magnitude of vector B .

C) Vector A is antiparallel (in the opposite direction) to vector B .

D) The angle between vector A and vector B must be 90°.

E) Vector A must be perpendicular to vector B .

velocity

A) remains a non-zero constant.

B) continuously decreases.

C) first decreases and then increases.

D) continuously increases.

E) remains zero.

acceleration

A) continuously increases.

B) first decreases and then increases.

C) remains a non-zero constant.

D) continuously decreases.

E) is always zero.

acceleration

A) first decreases and then increases.

B) continuously decreases.

C) remains a non-zero constant.

D) continuously increases.

E) is always zero.

non-zero constant downward.

with no air resistance? (There could be more than one correct choice.)

A) The horizontal acceleration is always zero and the vertical acceleration is always a

non-zero constant downward.

B) The speed of the object is constant but its velocity is not constant.

C) The speed of the object is zero at its highest point.

D) The acceleration of the object is +g when the object is rising and -g when it is falling.

E) The acceleration of the object is zero at its highest point.

vertically. Which object is traveling faster when it hits the level ground below if neither of them

experiences any air resistance?

A) It is impossible to tell because we do not know their masses.

B) the ball

C) the stone

D) Both are traveling at the same speed.

is dropped from the same height. Compare the times of fall of the two pebbles.

A) They hit at the same time.

B) The dropped pebble hits first.

C) The thrown pebble hits first.

D) We cannot tell without knowing which pebble is heavier.

A) be in front of the package.

B) depend on the speed of the plane when the package was released.

C) be behind the package.

D) be directly over the package.

A) they will both have the same splashdown speed.

B) the splashdown speed of James must be 9.8 m/s larger than that of John.

C) the splashdown speed of John is larger than that of James.

D) the splashdown speed of James is larger than that of John.

E) the splashdown speed of John must be 25 m/s larger than that of James.

from the edge. John takes a running start and jumps with an initial horizontal velocity of 25 m/s.

Compare the time it takes each to reach the lake below if there is no air resistance.

A) John reaches the surface of the lake first.

B) Cannot be determined without knowing the mass of both James and John.

C) James and John will reach the surface of the lake at the same time.

D) Cannot be determined without knowing the weight of both James and John.

E) James reaches the surface of the lake first.

trajectory

A) the ball’s velocity points downward.

B) the ball’s acceleration is zero but its velocity is not zero.

C) both the velocity and the acceleration of the soccer ball are zero.

D) the ball’s acceleration points upward.

E) neither the ball’s velocity nor its acceleration are zero.

A) Debra’s snowball will have a higher speed than Mary’s snowball.

B) Both snowballs will hit the ground with the same speed.

C) Mary’s snowball will have a higher speed than Debra’s snowball.

D) Mary’s snowball reaches the ground before Debra’s snowball.

E) Both snowballs hit the ground at the same time.

speed, but in different directions. Mary throws her snowball downward, at 30° below the

horizontal; Debra throws her snowball upward, at 30° above the horizontal. Which of the

following statements are true about just before the snowballs reach the ground below? (There

could be more than one correct choice.)

A) Mary’s snowball will stay in the air longer than Debra’s snowball.

B) Mary’s snowball has a greater downward acceleration than Debra’s snowball.

C) Both snowballs will take the same amount of time to hit the ground.

D) Debra’s snowball has exactly the same acceleration as Mary’s snowball.

E) Debra’s snowball will stay in the air longer than Mary’s snowball.

A) Its vertical velocity component is the same as it was just as it was launched.

B) Its velocity is vertical.

C) Its horizontal velocity component is zero.

D) Its speed is the same as it was just as it was launched.

E) Its horizontal velocity component is the same as it was just as it was launched.

A) Both vectors point in the same direction.

B) The acceleration is zero but the velocity is constant.

C) The vectors point in opposite directions.

D) The vectors are perpendicular to each other.

A) True

B) False

C) The moon is not accelerated toward the earth.

A) in a general southwesterly direction.

B) in a general northwesterly direction.

C) directly toward the west.

D) directly toward the north.