Question 1

The gain in speed each second for a freely falling object is about

Accepted Answer

A)  0 m/s.
B)  5 m/s.
C)  10 m/s.
D)  20 m/s.
E)  depends on the initial speedF) All of the above
G) B) and E)

Question 2

A man weighing 800 N stands at rest on two bathroom scales so that his weight is distributed evenly over both scales. The reading on each scale is

Accepted Answer

A)  200 N.
B)  400 N.
C)  800 N.
D)  1600 N.
E)  none of the aboveF) D) and E)
G) A) and B)

Question 3

The vertical height attained by a basketball player who achieves a hang time of a full 1 s is about

Accepted Answer

A)  0) 8 m.
B)  1 m.
C)  1) 2 m.
D)  2) 5 m.
E)  more than 2.5 m.F) A) and B)
G) B) and E)

Question 4

Someone standing at the edge of a cliff throws one ball straight up and another ball straight down at the same initial speed. Neglecting air resistance, the ball to hit the ground below the cliff with the greatest speed will be the one initially thrown

Accepted Answer

A)  upward.
B)  downward.
C)  They will both hit with the same speed.D) A) and B)
E) A) and C)

Question 5

As an object freely falls, its

Accepted Answer

A)  velocity increases.
B)  acceleration increases.
C)  both of the above
D)  none of the aboveE) B) and D)
F) None of the above

Question 6

Your weight is

Accepted Answer

A)  actually your mass.
B)  the gravitational attraction between you and the Earth.
C)  a property of mechanical equilibrium.
D)  all of the above
E)  none of the aboveF) A) and B)
G) None of the above

Question 7

If you stand on a pair of bathroom scales, explain how the readings change as you shift your weight gradually from side to side. What rule governs the readings on the scales?

Accepted Answer

The equilibrium rule guides the scale re...

Question 8

Galileo's interpretation of motion differed from Aristotle's in that Galileo emphasized

Accepted Answer

A)  the acceleration of free fall.
B)  time rates.
C)  the role of distance in describing motion.
D)  all of the above
E)  none of the aboveF) A) and D)
G) A) and C)

Question 9

Clearly distinguish between mass, weight, and volume.

Accepted Answer

Mass has to do with the quantity of matt...

Question 10

Compared with a 1-kg block of solid iron, a 2-kg block of solid iron has the same

Accepted Answer

A)  mass.
B)  volume.
C)  weight.
D)  all of the above
E)  none of the aboveF) A) and E)
G) D) and E)

Question 11

If a freely falling object were somehow equipped with a speedometer, its speed reading would increase each second by about

Accepted Answer

A)  5 m/s.
B)  10 m/s.
C)  15 m/s.
D)  a variable amount
E)  depends on its initial speedF) A) and B)
G) A) and D)

Question 12

An object is pulled northward with a force of 10 N and southward with a force of 15 N. The magnitude of the net force on the object is

Accepted Answer

A)  0 N.
B)  5 N.
C)  10 N.
D)  15 N.
E)  none of the aboveF) B) and D)
G) None of the above

Question 13

If a car increases its velocity from zero to 60 km/h in 10 s, its acceleration is

Accepted Answer

A)  3 km/h ∙ s
B)  6 km/h ∙ s
C)  10 km/h ∙ s
D)  60 km/h ∙ s
E)  600 km/h ∙ sF) A) and B)
G) None of the above

Question 14

A car accelerates at 2 m/s2. 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 mF) B) and D)
G) None of the above

Exam 2: Describing Motion

Someone standing at the edge of a cliff throws one ball straight up and another ball straight down at the same initial speed. Neglecting air resistance, the ball to hit the ground below the cliff with the greatest speed will be the one initially thrown

Correct Answer
verified

If you stand on a pair of bathroom scales, explain how the readings change as you shift your weight gradually from side to side. What rule governs the readings on the scales?

Correct Answer
verified
The equilibrium rule guides the scale re...
View Answer

A man weighing 800 N stands at rest on two bathroom scales so that his weight is distributed evenly over both scales. The reading on each scale is

Correct Answer
verified

Compared with a 1-kg block of solid iron, a 2-kg block of solid iron has the same

Correct Answer
verified

Your weight is

Correct Answer
verified

The vertical height attained by a basketball player who achieves a hang time of a full 1 s is about

Correct Answer
verified

A car accelerates at 2 m/s2. Assuming the car starts from rest, how far will it travel in 10 s?

Correct Answer
verified

As an object freely falls, its

Correct Answer
verified

Clearly distinguish between mass, weight, and volume.

Correct Answer
verified
Mass has to do with the quantity of matt...
View Answer

An object is pulled northward with a force of 10 N and southward with a force of 15 N. The magnitude of the net force on the object is

Correct Answer
verified

Galileo's interpretation of motion differed from Aristotle's in that Galileo emphasized

Correct Answer
verified

If a freely falling object were somehow equipped with a speedometer, its speed reading would increase each second by about

Correct Answer
verified

The gain in speed each second for a freely falling object is about

Correct Answer
verified

If a car increases its velocity from zero to 60 km/h in 10 s, its acceleration is

Correct Answer
verified

Exam 2: Describing Motion

Someone standing at the edge of a cliff throws one ball straight up and another ball straight down at the same initial speed. Neglecting air resistance, the ball to hit the ground below the cliff with the greatest speed will be the one initially thrown

Correct AnswerverifiedShow Answer

If you stand on a pair of bathroom scales, explain how the readings change as you shift your weight gradually from side to side. What rule governs the readings on the scales?

Correct AnswerverifiedThe equilibrium rule guides the scale re...View AnswerShow Answer

A man weighing 800 N stands at rest on two bathroom scales so that his weight is distributed evenly over both scales. The reading on each scale is

Correct AnswerverifiedShow Answer

Compared with a 1-kg block of solid iron, a 2-kg block of solid iron has the same

Correct AnswerverifiedShow Answer

Your weight is

Correct AnswerverifiedShow Answer

The vertical height attained by a basketball player who achieves a hang time of a full 1 s is about

Correct AnswerverifiedShow Answer

A car accelerates at 2 m/s2. Assuming the car starts from rest, how far will it travel in 10 s?

Correct AnswerverifiedShow Answer

As an object freely falls, its

Correct AnswerverifiedShow Answer

Clearly distinguish between mass, weight, and volume.

Correct AnswerverifiedMass has to do with the quantity of matt...View AnswerShow Answer

An object is pulled northward with a force of 10 N and southward with a force of 15 N. The magnitude of the net force on the object is

Correct AnswerverifiedShow Answer

Galileo's interpretation of motion differed from Aristotle's in that Galileo emphasized

Correct AnswerverifiedShow Answer

If a freely falling object were somehow equipped with a speedometer, its speed reading would increase each second by about

Correct AnswerverifiedShow Answer

The gain in speed each second for a freely falling object is about

Correct AnswerverifiedShow Answer

If a car increases its velocity from zero to 60 km/h in 10 s, its acceleration is

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified
The equilibrium rule guides the scale re...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Mass has to do with the quantity of matt...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified