Question 1

The sensitive dependence upon initial conditions of the evolution of some physical systems is a feature of

Accepted Answer

A) gravitation. 
B) fractals. 
C) air resistance. 
D) dynamical chaos. 
E) quantum mechanics.

Question 2

Match each item with the correct statement below.​
-motion in a straight line with decreasing speed

Accepted Answer

A) ​zero net force 
B) ​constant net force in the same direction as velocity 
C) ​constant net force opposite to velocity 
D) ​constant net force perpendicular to velocity 
E) ​net force decreasing with speed
F)​restoring force proportional to displacement

Question 3

A ball is thrown straight up,and reaches the top of its trajectory,the acceleration

Accepted Answer

A) zero. 
B) 9.8 m/s2. 
C) points down. 
D) points up.

Question 4

A car and driver have a total mass of 945 kg.While rounding a curve on a flat road at a speed of 29 m/s,the net force acting on the car and driver is determined to be 56,767.5 N.The radius of the curve is__________.

Accepted Answer

The answer of A car and driver have a total...

Question 5

A ball on a string is being whirled around overhead when the string breaks.The ball will move in the direction of the centripetal force the moment the string breaks.

Accepted Answer

A) True 
 B)False

Question 6

​Match each item with the correct statement below.​
-air resistance is one example

Accepted Answer

A) centripetal force 
B) circle 
C) ellipse 
D) field 
E) kinetic friction
F)mass
G)parabola
H)SI
I)simple harmonic motion
J)static friction
K)terminal speed
L)tides
M)weight

Question 7

Starting from rest,a 2-kg body acquires a speed of 8 m/s in 2 seconds.The net force acting on the body is __________.

Accepted Answer

The answer of Starting from rest,a 2-kg body acquires a...

Question 8

A 160 lb person has a mass of 160/32 = 5 slugs.A 160-lb person steps into an elevator and stands on a bathroom scale.Determine the scale reading for the given scenarios.
-The elevator accelerates upwards and is now moving at a constant speed.

Accepted Answer

A) 150 lb 
B) 160 lb 
C) 170 lb 
D) none of the above

Question 9

The direction of a field line at a point in space shows the direction of the force that would act on a body placed at the point.

Accepted Answer

A) True 
 B)False

Question 10

During the period of one day,the number of high tides at a given point is about

Accepted Answer

A) one. 
B) two. 
C) three. 
D) four. 
E) none of the above.

Question 11

The vertical acceleration of a projectile

Accepted Answer

A) equals g pointing downwards. 
B) equals g pointing upwards. 
C) equals g pointing sometimes upwards and other times downwards. 
D) is zero. 
E) continuously increases.

Question 12

During the period of one day,the number of high tides at a given location is about __________.

Accepted Answer

The answer of During the period of one day,the number...

Question 13

A 3,000 kg truck experiences a net force of 2,000 N.What is its acceleration?

Accepted Answer

The answer of A 3,000 kg truck experiences a net...

Question 14

A car moving at a constant speed goes around a curve of 400-ft radius and then goes around a second curve of 200-ft radius.The centripetal force acting on the car as it goes around the 200-ft radius curve is ___________ the value of the centripetal force acting on the car as it goes around the 400-ft radius curve.

Accepted Answer

A) one quarter 
B) one half 
C) the same as 
D) twice 
E) four times

Question 15

A certain speed boat weighs 4,900 N.It can accelerate from 0 to 20 m/s in 5 seconds.
(a)What is the mass of the boat?
(b)What is the acceleration?
(c)How large is the net force acting on the boat?

Accepted Answer

The answer of A certain speed boat weighs 4,900 N.It...

Question 16

You push on a wall,and the wall pushes back on you with the same force.This is an example of Newton's third law.

Accepted Answer

A) True 
 B)False

Question 17

The acceleration is zero.

Accepted Answer

A) True 
 B)False

Question 18

​Match each item with the correct statement below.​
-the area of the sheet of paper you are looking at

Accepted Answer

A) m 
B) m2 
C) m3 
D) s 
E) Hz
F)m/s
G)m/s2
H)N
I)kg

Question 19

Match each item with the correct statement below.​
-As the radius of a turn being made by an aircraft increases,the centripetal acceleration on the aircraft

Accepted Answer

A) ​increases 
B) ​decreases 
C) ​stays the same

Question 20

Where is the Sun located relative to a planet's orbit about it?

Accepted Answer

A) at the center of the orbit,which is a circle 
B) at the center of the orbit,which is an ellipse 
C) at one focus of the ellipse which forms the orbit 
D) none of the above

Exam 2: Newtons Laws

The sensitive dependence upon initial conditions of the evolution of some physical systems is a feature of

Match each item with the correct statement below. -motion in a straight line with decreasing speed

A ball is thrown straight up,and reaches the top of its trajectory,the acceleration

A car and driver have a total mass of 945 kg.While rounding a curve on a flat road at a speed of 29 m/s,the net force acting on the car and driver is determined to be 56,767.5 N.The radius of the curve is__________.

A ball on a string is being whirled around overhead when the string breaks.The ball will move in the direction of the centripetal force the moment the string breaks.

Match each item with the correct statement below. -air resistance is one example

Starting from rest,a 2-kg body acquires a speed of 8 m/s in 2 seconds.The net force acting on the body is __________.

A 160 lb person has a mass of 160/32 = 5 slugs.A 160-lb person steps into an elevator and stands on a bathroom scale.Determine the scale reading for the given scenarios. -The elevator accelerates upwards and is now moving at a constant speed.

The direction of a field line at a point in space shows the direction of the force that would act on a body placed at the point.

During the period of one day,the number of high tides at a given point is about

The vertical acceleration of a projectile

During the period of one day,the number of high tides at a given location is about __________.

A 3,000 kg truck experiences a net force of 2,000 N.What is its acceleration?

A certain speed boat weighs 4,900 N.It can accelerate from 0 to 20 m/s in 5 seconds. (a)What is the mass of the boat? (b)What is the acceleration? (c)How large is the net force acting on the boat?

You push on a wall,and the wall pushes back on you with the same force.This is an example of Newton's third law.

The acceleration is zero.

Match each item with the correct statement below. -the area of the sheet of paper you are looking at

Match each item with the correct statement below. -As the radius of a turn being made by an aircraft increases,the centripetal acceleration on the aircraft

Where is the Sun located relative to a planet's orbit about it?

Exam 2: Newtons Laws

The sensitive dependence upon initial conditions of the evolution of some physical systems is a feature of

Match each item with the correct statement below.​ -motion in a straight line with decreasing speed

A ball is thrown straight up,and reaches the top of its trajectory,the acceleration

A car and driver have a total mass of 945 kg.While rounding a curve on a flat road at a speed of 29 m/s,the net force acting on the car and driver is determined to be 56,767.5 N.The radius of the curve is__________.

A ball on a string is being whirled around overhead when the string breaks.The ball will move in the direction of the centripetal force the moment the string breaks.

​Match each item with the correct statement below.​ -air resistance is one example

Starting from rest,a 2-kg body acquires a speed of 8 m/s in 2 seconds.The net force acting on the body is __________.

A 160 lb person has a mass of 160/32 = 5 slugs.A 160-lb person steps into an elevator and stands on a bathroom scale.Determine the scale reading for the given scenarios. -The elevator accelerates upwards and is now moving at a constant speed.

The direction of a field line at a point in space shows the direction of the force that would act on a body placed at the point.

During the period of one day,the number of high tides at a given point is about

The vertical acceleration of a projectile

During the period of one day,the number of high tides at a given location is about __________.

A 3,000 kg truck experiences a net force of 2,000 N.What is its acceleration?

A certain speed boat weighs 4,900 N.It can accelerate from 0 to 20 m/s in 5 seconds. (a)What is the mass of the boat? (b)What is the acceleration? (c)How large is the net force acting on the boat?

You push on a wall,and the wall pushes back on you with the same force.This is an example of Newton's third law.

The acceleration is zero.

​Match each item with the correct statement below.​ -the area of the sheet of paper you are looking at

Match each item with the correct statement below.​ -As the radius of a turn being made by an aircraft increases,the centripetal acceleration on the aircraft

Where is the Sun located relative to a planet's orbit about it?

Match each item with the correct statement below. -motion in a straight line with decreasing speed

Match each item with the correct statement below. -air resistance is one example

Match each item with the correct statement below. -the area of the sheet of paper you are looking at

Match each item with the correct statement below. -As the radius of a turn being made by an aircraft increases,the centripetal acceleration on the aircraft