Question 1

The slope of the acceleration vs.time curve represents

Accepted Answer

A) the velocity. 
B) the rate of change of acceleration. 
C) the rate of change of displacement. 
D) the area under the position vs.time curve. 
A) the velocity. 
B) the rate of change of acceleration. 
C) the rate of change of displacement. 
D) the area under the position vs.time curve.

Question 2

A bird,accelerating from rest at a constant rate,experiences a displacement of 25 m in 15 s.What is the final velocity after 15 s?​

Accepted Answer

A) 2.5 m/s 
B) 1.7 m/s 
C) 3.3 m/s 
D) 3.8 m/s 
E) ​zero 
A) 2.5 m/s 
B) 1.7 m/s 
C) 3.3 m/s 
D) 3.8 m/s 
E) ​zero

Question 3

An object moves 10.0 m east in 10.0 s and then returns to its starting point taking an additional 40.0 s.If west is chosen as the positive direction,what is the average speed of the object?

Accepted Answer

A) 0.4 m/s 
B) -0.4 m/s 
C) 10.0 m/s 
D) 0 m/s 
E) ​-10.0 
A) 0.4 m/s 
B) -0.4 m/s 
C) 10.0 m/s 
D) 0 m/s 
E) ​-10.0

Question 4

Which of the following is not a vector quantity?

Accepted Answer

A) temperature 
B) velocity 
C) acceleration 
D) displacement 
A) temperature 
B) velocity 
C) acceleration 
D) displacement

Question 5

A cheetah can run at approximately 100 km/h and a gazelle at 80.0 km/h.If both animals are running at full speed,with the gazelle 50.0 m ahead,how long before the cheetah catches its prey?​

Accepted Answer

A) 9.0 s 
B) 14 s 
C) 18 s 
D) 4.5 s 
E) ​21 s 
A) 9.0 s 
B) 14 s 
C) 18 s 
D) 4.5 s 
E) ​21 s

Question 6

Gwen releases a rock at rest from the top of a 40-m tower.If g = 9.8 m/s2 and air resistance is negligible,what is the speed of the rock as it hits the ground?​

Accepted Answer

A) 28 m/s 
B) 14 m/s 
C) 20 m/s 
D) 40 m/s 
E) ​780 m/s 
A) 28 m/s 
B) 14 m/s 
C) 20 m/s 
D) 40 m/s 
E) ​780 m/s

Question 7

Displacement is which of the following types of quantities?

Accepted Answer

A) vector 
B) scalar 
C) magnitude 
D) dimensional 
A) vector 
B) scalar 
C) magnitude 
D) dimensional

Question 8

In one-dimensional motion where the direction is indicated by a plus or minus sign,the average velocity of an object has which of the following properties?

Accepted Answer

A) It is positive. 
B) It is negative. 
C) It is zero. 
D) It can be positive,negative,or zero. 
A) It is positive. 
B) It is negative. 
C) It is zero. 
D) It can be positive,negative,or zero.

Question 9

Starting from rest,a car accelerates down a straight road with constant acceleration a for a time t,then the direction of the acceleration is reversed, (i.e. ,it is −a),and the car comes to a stop in an additional time t,the time for the whole trip being 2t.At what time,or times,is the average velocity of the car for the trip equal to its instantaneous velocity during the trip?

Accepted Answer

A) There is no such time. 
B) It is at the halfway point at t. 
C) This occurs at 2 times,0.5t and 1.5t. 
D) This occurs at 2 times,0.707t and 1.293t. 
A) There is no such time. 
B) It is at the halfway point at t. 
C) This occurs at 2 times,0.5t and 1.5t. 
D) This occurs at 2 times,0.707t and 1.293t.

Question 10

A speeding car traveling at a constant velocity of 24 m/s passes a police care initially at rest beside the roadway.If the police car with constant acceleration of 3.0 m/s2 immediately pursues the speeding car,how far down the road does it draw even with the speeding car?

Accepted Answer

A) 190 m 
B) 290 m 
C) 380 m 
D) 770 m 
A) 190 m 
B) 290 m 
C) 380 m 
D) 770 m

Question 11

A European sports car dealer claims that his product will accelerate at a constant rate from rest to a speed of 100 km/hr in 8.00 s.What is the speed after the first 4.00 s of acceleration? (Hint: First convert the speed to m/s. )​

Accepted Answer

A) 27.8 m/s 
B) 41.7 m/s 
C) 20.9 m/s 
D) 13.9 m/s 
E) ​6.95 m/s 
A) 27.8 m/s 
B) 41.7 m/s 
C) 20.9 m/s 
D) 13.9 m/s 
E) ​6.95 m/s

Question 12

A Cessna aircraft has a lift-off speed of 135 km/h.What minimum constant acceleration does this require if the aircraft is to be airborne after a take-off run of 260 m?​

Accepted Answer

A) 2.70 m/s2 
B) 1.35 m/s2 
C) 3.38 m/s2 
D) 5.41 m/s2 
E) 2.03 m/s2 
A) 2.70 m/s2 
B) 1.35 m/s2 
C) 3.38 m/s2 
D) 5.41 m/s2 
E) 2.03 m/s2

Question 13

A basketball player can jump 1.6 m off the hardwood floor.With what upward velocity did he leave the floor?​

Accepted Answer

A) 5.8 m/s 
B) 2.8 m/s 
C) 5.4 m/s 
D) 5.6 m/s 
E) ​11 m/s 
A) 5.8 m/s 
B) 2.8 m/s 
C) 5.4 m/s 
D) 5.6 m/s 
E) ​11 m/s

Question 14

A ball is pushed with an initial velocity of 4.0 m/s.The ball rolls down a hill with a constant acceleration of 1.7 m/s2.The ball reaches the bottom of the hill in 7.0 s.What is the ball's velocity at the bottom of the hill?

Accepted Answer

A) 15 m/s 
B) 13 m/s 
C) 14 m/s 
D) 16 m/s 
E) ​19 m/s 
A) 15 m/s 
B) 13 m/s 
C) 14 m/s 
D) 16 m/s 
E) ​19 m/s

Question 15

​Amanda is standing at the edge of a cliff.She throws a rock vertically upward at speed v0,while at the same time throws a second rock vertically downward at the same speed.How long after the rock thrown downward hits the ground does the rock thrown upwards hit?

Accepted Answer

A) ​2v​0/g 
B) ​v​0/g 
C) ​   
D) ​   
A) ​2v​0/g 
B) ​v​0/g 
C) ​   
D) ​

Question 16

A European sports car dealer claims that his car will accelerate at a constant rate from rest to 100 km/h in 8.00 s.If so,what is the acceleration? (Hint: First convert speed to m/s. )​

Accepted Answer

A) 3.47 m/s2 
B) 6.94 m/s2 
C) 5.21 m/s2 
D) 10.4 m/s2 
E) ​8.68 m/s2 
A) 3.47 m/s2 
B) 6.94 m/s2 
C) 5.21 m/s2 
D) 10.4 m/s2 
E) ​8.68 m/s2

Question 17

A vehicle designed to operate on a drag strip accelerates from zero to 34 m/s while undergoing a straight-line path displacement of 48 m.What is the vehicle's acceleration if its value may be assumed to be constant?

Accepted Answer

A) 9 m/s2 
B) 6.0 m/s2 
C) 12 m/s2 
D) 18 m/s2 
E) 24 m/s2 
A) 9 m/s2 
B) 6.0 m/s2 
C) 12 m/s2 
D) 18 m/s2 
E) 24 m/s2

Question 18

A drag racer starts from rest and accelerates at 8.0 m/s2 for the entire distance of 300 m.What is the velocity of the race car at the end of the run?

Accepted Answer

A) 83 m/s 
B) 69 m/s 
C) 52 m/s 
D) 35 m/s 
E) ​59 m/s 
A) 83 m/s 
B) 69 m/s 
C) 52 m/s 
D) 35 m/s 
E) ​59 m/s

Question 19

A cart is given an initial velocity of 5.0 m/s and experiences a constant acceleration of 2.4 m/s2.What is the magnitude of the cart's displacement during the first 5.0 s of its motion?​

Accepted Answer

A) 35 m 
B) 85 m 
C) 55 m 
D) 11 m 
E) ​17 m 
A) 35 m 
B) 85 m 
C) 55 m 
D) 11 m 
E) ​17 m

Question 20

A baseball player throws a ball straight up into the air.At a height of 3.00 m above the release point,the ball is moving at 1.25 m/s.What was the ball's initial speed?

Accepted Answer

A) ​7.56 m/s 
B) ​7.77 m/s 
C) ​57.2 m/s 
D) ​60.4 m/s 
A) ​7.56 m/s 
B) ​7.77 m/s 
C) ​57.2 m/s 
D) ​60.4 m/s

Exam 2: Motion in One Dimension

The slope of the acceleration vs.time curve represents

A bird,accelerating from rest at a constant rate,experiences a displacement of 25 m in 15 s.What is the final velocity after 15 s?​

An object moves 10.0 m east in 10.0 s and then returns to its starting point taking an additional 40.0 s.If west is chosen as the positive direction,what is the average speed of the object?

Which of the following is not a vector quantity?

A cheetah can run at approximately 100 km/h and a gazelle at 80.0 km/h.If both animals are running at full speed,with the gazelle 50.0 m ahead,how long before the cheetah catches its prey?​

Gwen releases a rock at rest from the top of a 40-m tower.If g = 9.8 m/s2 and air resistance is negligible,what is the speed of the rock as it hits the ground?​

Displacement is which of the following types of quantities?

In one-dimensional motion where the direction is indicated by a plus or minus sign,the average velocity of an object has which of the following properties?

A speeding car traveling at a constant velocity of 24 m/s passes a police care initially at rest beside the roadway.If the police car with constant acceleration of 3.0 m/s2 immediately pursues the speeding car,how far down the road does it draw even with the speeding car?

A European sports car dealer claims that his product will accelerate at a constant rate from rest to a speed of 100 km/hr in 8.00 s.What is the speed after the first 4.00 s of acceleration? (Hint: First convert the speed to m/s. )​

A Cessna aircraft has a lift-off speed of 135 km/h.What minimum constant acceleration does this require if the aircraft is to be airborne after a take-off run of 260 m?​

A basketball player can jump 1.6 m off the hardwood floor.With what upward velocity did he leave the floor?​

A ball is pushed with an initial velocity of 4.0 m/s.The ball rolls down a hill with a constant acceleration of 1.7 m/s2.The ball reaches the bottom of the hill in 7.0 s.What is the ball's velocity at the bottom of the hill?

​Amanda is standing at the edge of a cliff.She throws a rock vertically upward at speed v0,while at the same time throws a second rock vertically downward at the same speed.How long after the rock thrown downward hits the ground does the rock thrown upwards hit?

A European sports car dealer claims that his car will accelerate at a constant rate from rest to 100 km/h in 8.00 s.If so,what is the acceleration? (Hint: First convert speed to m/s. )​

A vehicle designed to operate on a drag strip accelerates from zero to 34 m/s while undergoing a straight-line path displacement of 48 m.What is the vehicle's acceleration if its value may be assumed to be constant?

A drag racer starts from rest and accelerates at 8.0 m/s2 for the entire distance of 300 m.What is the velocity of the race car at the end of the run?

A cart is given an initial velocity of 5.0 m/s and experiences a constant acceleration of 2.4 m/s2.What is the magnitude of the cart's displacement during the first 5.0 s of its motion?​

A baseball player throws a ball straight up into the air.At a height of 3.00 m above the release point,the ball is moving at 1.25 m/s.What was the ball's initial speed?

Units, Trigonometry, and Vectors

Motion in Two Dimensions

Newtons Laws of Motion

Energy

Momentum, Impulse, and Collisions

Rotational Motion and Gravitation

Rotational Equilibrium and Dynamics

Fluids and Solids

Thermal Physics

Energy in Thermal Processes

The Laws of Thermodynamics

Vibrations and Waves

Sound

Electric Forces and Fields

Electrical Energy and Capacitance

Current and Resistance

Direct-Current Circuits

Magnetism

Induced Voltages and Inductance

Alternating-Current Circuits and Electromagnetic Waves

Reflection and Refraction of Light

Mirrors and Lenses

Wave Optics

Optical Instruments

Relativity

Quantum Physics

Atomic Physics

Nuclear Physics

Nuclear Energy and Elementary Particles

Filters

A bird,accelerating from rest at a constant rate,experiences a displacement of 25 m in 15 s.What is the final velocity after 15 s?

A cheetah can run at approximately 100 km/h and a gazelle at 80.0 km/h.If both animals are running at full speed,with the gazelle 50.0 m ahead,how long before the cheetah catches its prey?

Gwen releases a rock at rest from the top of a 40-m tower.If g = 9.8 m/s² and air resistance is negligible,what is the speed of the rock as it hits the ground?

A speeding car traveling at a constant velocity of 24 m/s passes a police care initially at rest beside the roadway.If the police car with constant acceleration of 3.0 m/s² immediately pursues the speeding car,how far down the road does it draw even with the speeding car?

A European sports car dealer claims that his product will accelerate at a constant rate from rest to a speed of 100 km/hr in 8.00 s.What is the speed after the first 4.00 s of acceleration? (Hint: First convert the speed to m/s. )

A Cessna aircraft has a lift-off speed of 135 km/h.What minimum constant acceleration does this require if the aircraft is to be airborne after a take-off run of 260 m?

A basketball player can jump 1.6 m off the hardwood floor.With what upward velocity did he leave the floor?

A ball is pushed with an initial velocity of 4.0 m/s.The ball rolls down a hill with a constant acceleration of 1.7 m/s².The ball reaches the bottom of the hill in 7.0 s.What is the ball's velocity at the bottom of the hill?

Amanda is standing at the edge of a cliff.She throws a rock vertically upward at speed v₀,while at the same time throws a second rock vertically downward at the same speed.How long after the rock thrown downward hits the ground does the rock thrown upwards hit?

A European sports car dealer claims that his car will accelerate at a constant rate from rest to 100 km/h in 8.00 s.If so,what is the acceleration? (Hint: First convert speed to m/s. )

A drag racer starts from rest and accelerates at 8.0 m/s² for the entire distance of 300 m.What is the velocity of the race car at the end of the run?

A cart is given an initial velocity of 5.0 m/s and experiences a constant acceleration of 2.4 m/s².What is the magnitude of the cart's displacement during the first 5.0 s of its motion?