Question 1

A car accelerates at 2 meters/s/s.Assuming the car starts from rest,how far will it travel in 10 s?

Accepted Answer

A) 2 m 
B) 10 m 
C) 40 m 
D) 100 m 
E) 200 m 
A) 2 m 
B) 10 m 
C) 40 m 
D) 100 m 
E) 200 m

Question 2

A ball is thrown 125 meters upward and then falls the same distance back to Earth.Neglecting air resistance,its total time in the air is

Accepted Answer

A) about 5 seconds. 
B) about 10 seconds. 
C) about 15 seconds. 
D) more than 20 seconds. 
A) about 5 seconds. 
B) about 10 seconds. 
C) about 15 seconds. 
D) more than 20 seconds.

Question 3

In each second of fall,the distance a freely falling object will fall is

Accepted Answer

A) about 5 m. 
B) about 10 m. 
C) the same,but not 5 m or 10 m. 
D) increasing. 
E) none of these 
A) about 5 m. 
B) about 10 m. 
C) the same,but not 5 m or 10 m. 
D) increasing. 
E) none of these

Question 4

A bullet is dropped into a river from a very high bridge.At the same time,another bullet is fired from a gun,straight down towards the water.Neglecting air resistance,the acceleration just before striking the water

Accepted Answer

A) is greater for the dropped bullet. 
B) is greater for the fired bullet. 
C) is the same for each bullet. 
D) depends on how high they started. 
E) none of these 
A) is greater for the dropped bullet. 
B) is greater for the fired bullet. 
C) is the same for each bullet. 
D) depends on how high they started. 
E) none of these

Question 5

A ball is thrown upwards and caught when it comes back down.In the presence of air resistance,the speed with which it is caught is always

Accepted Answer

A) more than the speed it had when thrown upwards. 
B) less than the speed it had when thrown upwards. 
C) the same as the speed it had when thrown upwards. 
D) impossible to determine. 
A) more than the speed it had when thrown upwards. 
B) less than the speed it had when thrown upwards. 
C) the same as the speed it had when thrown upwards. 
D) impossible to determine.

Question 6

Disregarding air drag,how fast must you toss a ball straight up in order for it to take 2 seconds to return to the level from which you tossed it?

Accepted Answer

A) 5 m/s 
B) 7)5 m/s 
C) 10 m/s 
D) 15 m/s 
E) 20 m/s 
A) 5 m/s 
B) 7)5 m/s 
C) 10 m/s 
D) 15 m/s 
E) 20 m/s

Question 7

A man leans over the edge of a cliff and throws a rock upward at 4.9 m/s.Neglecting air resistance,one second later the rock's speed is

Accepted Answer

A) zero. 
B) 4)9 m/s. 
C) 9)8 m/s. 
D) 14.7 m/s. 
E) none of the above 
A) zero. 
B) 4)9 m/s. 
C) 9)8 m/s. 
D) 14.7 m/s. 
E) none of the above

Question 8

An object falls freely from rest on a planet where the acceleration due to gravity is 20 meters per second squared.After 5 seconds,the object will have a speed of

Accepted Answer

A) 5 m/s. 
B) 10 m/s. 
C) 20 m/s. 
D) 50 m/s. 
E) 100 m/s. 
A) 5 m/s. 
B) 10 m/s. 
C) 20 m/s. 
D) 50 m/s. 
E) 100 m/s.

Question 9

A car accelerates at 2 meters per second per second.Assuming the car starts from rest,how much time does it need to accelerate to a speed of 30 m/s?

Accepted Answer

A) 2 seconds 
B) 15 seconds 
C) 30 seconds 
D) 60 seconds 
E) none of these 
A) 2 seconds 
B) 15 seconds 
C) 30 seconds 
D) 60 seconds 
E) none of these

Question 10

If a freely falling object were somehow equipped with a speedometer on a planet where the acceleration due to gravity is 20 m/s/s,then its speed reading would increase each second by

Accepted Answer

A) 10 m/s. 
B) 20 m/s. 
C) 30 m/s. 
D) 40 m/s. 
E) depends on its initial speed 
A) 10 m/s. 
B) 20 m/s. 
C) 30 m/s. 
D) 40 m/s. 
E) depends on its initial speed

Question 11

If a projectile is fired straight up at a speed of 10 m/s,the total time to return to its starting position is about

Accepted Answer

A) 1 second. 
B) 2 seconds. 
C) 10 seconds. 
D) 20 seconds. 
E) not enough information to estimate 
A) 1 second. 
B) 2 seconds. 
C) 10 seconds. 
D) 20 seconds. 
E) not enough information to estimate

Question 12

It takes 6 seconds for a stone to fall to the bottom of a mine shaft.How deep is the shaft?

Accepted Answer

A) about 60 m 
B) about 120 m 
C) about 180 m 
D) more than 200 m 
A) about 60 m 
B) about 120 m 
C) about 180 m 
D) more than 200 m

Question 13

A man leans over the edge of a cliff and throws a rock upward at 4.9 m/s.Neglecting air resistance,two seconds later the rock's speed is

Accepted Answer

A) zero. 
B) 4)9 m/s. 
C) 9)8 m/s. 
D) 14.7 m/s. 
E) none of the above 
A) zero. 
B) 4)9 m/s. 
C) 9)8 m/s. 
D) 14.7 m/s. 
E) none of the above

Question 14

A ball is thrown upwards and returns to the same position.Compared with its original speed after release,its speed when it returns is about

Accepted Answer

A) half as much. 
B) the same. 
C) twice as much. 
D) four times as much. 
A) half as much. 
B) the same. 
C) twice as much. 
D) four times as much.

Question 15

Consider drops of water that leak at a steady rate from a dripping faucet.As the drops fall they

Accepted Answer

A) get closer together. 
B) get farther apart. 
C) remain at a relatively fixed distance from one another. 
A) get closer together. 
B) get farther apart. 
C) remain at a relatively fixed distance from one another.

Question 16

A ball tossed vertically upward rises,reaches its highest point,and then falls back to its starting point.During this time the acceleration of the ball is always

Accepted Answer

A) in the direction of motion. 
B) opposite its velocity. 
C) directed upward. 
D) directed downward. 
A) in the direction of motion. 
B) opposite its velocity. 
C) directed upward. 
D) directed downward.

Question 17

A ball is thrown upwards.Neglecting air resistance,what initial upward speed does the ball need to remain in the air for a total time of 10 seconds?

Accepted Answer

A) about 50 m/s 
B) about 60 m/s 
C) about 80 m/s 
D) about 100 m/s 
E) about 110 m/s 
A) about 50 m/s 
B) about 60 m/s 
C) about 80 m/s 
D) about 100 m/s 
E) about 110 m/s

Question 18

Twelve seconds after starting from rest,an object falling freely will have a speed of

Accepted Answer

A) 10 m/s. 
B) 50 m/s. 
C) 100 m/s. 
D) more than 100 m/s. 
A) 10 m/s. 
B) 50 m/s. 
C) 100 m/s. 
D) more than 100 m/s.

Question 19

A bullet is dropped from the top of the Empire State Building while another bullet is fired downward from the same location.Neglecting air resistance,the acceleration of

Accepted Answer

A) the fired bullet is greater. 
B) the dropped bullet is greater. 
C) each bullet is 9.8 meters per second per second. 
A) the fired bullet is greater. 
B) the dropped bullet is greater. 
C) each bullet is 9.8 meters per second per second.

Question 20

A pot falls from a ledge and hits the ground 45 m below.The speed with which it hits the ground is

Accepted Answer

A) about 30 m/s. 
B) about 60 m/s. 
C) about 120 m/s. 
D) more than 120 m/s. 
A) about 30 m/s. 
B) about 60 m/s. 
C) about 120 m/s. 
D) more than 120 m/s.

Exam 3: Linear Motion

A car accelerates at 2 meters/s/s.Assuming the car starts from rest,how far will it travel in 10 s?

A ball is thrown 125 meters upward and then falls the same distance back to Earth.Neglecting air resistance,its total time in the air is

In each second of fall,the distance a freely falling object will fall is

A bullet is dropped into a river from a very high bridge.At the same time,another bullet is fired from a gun,straight down towards the water.Neglecting air resistance,the acceleration just before striking the water

A ball is thrown upwards and caught when it comes back down.In the presence of air resistance,the speed with which it is caught is always

Disregarding air drag,how fast must you toss a ball straight up in order for it to take 2 seconds to return to the level from which you tossed it?

A man leans over the edge of a cliff and throws a rock upward at 4.9 m/s.Neglecting air resistance,one second later the rock's speed is

An object falls freely from rest on a planet where the acceleration due to gravity is 20 meters per second squared.After 5 seconds,the object will have a speed of

A car accelerates at 2 meters per second per second.Assuming the car starts from rest,how much time does it need to accelerate to a speed of 30 m/s?

If a freely falling object were somehow equipped with a speedometer on a planet where the acceleration due to gravity is 20 m/s/s,then its speed reading would increase each second by

If a projectile is fired straight up at a speed of 10 m/s,the total time to return to its starting position is about

It takes 6 seconds for a stone to fall to the bottom of a mine shaft.How deep is the shaft?

A man leans over the edge of a cliff and throws a rock upward at 4.9 m/s.Neglecting air resistance,two seconds later the rock's speed is

A ball is thrown upwards and returns to the same position.Compared with its original speed after release,its speed when it returns is about

Consider drops of water that leak at a steady rate from a dripping faucet.As the drops fall they

A ball tossed vertically upward rises,reaches its highest point,and then falls back to its starting point.During this time the acceleration of the ball is always

A ball is thrown upwards.Neglecting air resistance,what initial upward speed does the ball need to remain in the air for a total time of 10 seconds?

Twelve seconds after starting from rest,an object falling freely will have a speed of

A bullet is dropped from the top of the Empire State Building while another bullet is fired downward from the same location.Neglecting air resistance,the acceleration of

A pot falls from a ledge and hits the ground 45 m below.The speed with which it hits the ground is

About Science

Newtons First Law of Motion: Inertia

Newtons Second Law of Motion: Force and Acceleration

Newtons Third Law of Motion: Action and Reaction

Momentum

Energy

Rotational Motion

Gravity

Projectile and Satellite Motion

Atomic Nature of Matter

Solids

Liquids

Gases and Plasmas

Temperature,heat,and Expansion

Heat Transfer

Change of Phase

Thermodynamics

Vibrations and Waves

Sound

Musical Sounds

Electrostatics

Electric Current

Magnetism

Electromagnetic Induction

Properties of Light

Color

Reflection and Refraction

Light Waves

Light Emission

Light Quanta

The Atom and the Quantum

Atomic Nucleus and Radioactivity

Nuclear Fission and Fusion

Special Theory of Relativity

General Theory of Relativity

Filters