Question 1

If you toss a ball straight upward at 40 m/s with no air resistance,one second before it reaches the top of its path its speed is

Accepted Answer

A) zero. 
B) 10 m/s. 
C) 20 m/s. 
D) 30 m/s 
E) 40 m/s. 
A) zero. 
B) 10 m/s. 
C) 20 m/s. 
D) 30 m/s 
E) 40 m/s.

Question 2

According to Galileo,a rolled ball eventually comes to a stop because

Accepted Answer

A) of friction. 
B) of inertia. 
C) it seeks its natural state of rest. 
D) all of the above 
A) of friction. 
B) of inertia. 
C) it seeks its natural state of rest. 
D) all of the above

Question 3

Once a basketball player's feet are off the floor in making a jump,the jumper's acceleration

Accepted Answer

A) depends on launch speed. 
B) is usually greater for taller players. 
C) varies with body orientation. 
D) is g; no more,no less. 
E) all of the above 
A) depends on launch speed. 
B) is usually greater for taller players. 
C) varies with body orientation. 
D) is g; no more,no less. 
E) all of the above

Question 4

When Lillian hangs from a pair of gym rings,the upward support forces by the rings will always

Accepted Answer

A) each be half her weight. 
B) each be equal to her weight. 
C) add up to equal her weight. 
D) add up to more than her weight. 
A) each be half her weight. 
B) each be equal to her weight. 
C) add up to equal her weight. 
D) add up to more than her weight.

Question 5

A 1-kg block of iron weighs about

Accepted Answer

A) 1 N. 
B) 5 N. 
C) 10 N. 
D) more than 10 N. 
A) 1 N. 
B) 5 N. 
C) 10 N. 
D) more than 10 N.

Question 6

If you toss a ball straight upward at 40 m/s with no air resistance,one second after it reaches the top of its path its speed is

Accepted Answer

A) zero. 
B) 10 m/s. 
C) 20 m/s. 
D) 30 m/s 
E) 40 m/s. 
A) zero. 
B) 10 m/s. 
C) 20 m/s. 
D) 30 m/s 
E) 40 m/s.

Question 7

A girl pushes a cart to the left with a 100-N force.At the same time a boy pushes it to the right with a 50-N force.The net force exerted on the cart is

Accepted Answer

A) 50 N to the left. 
B) 50 N to the right. 
C) 100 N to the left. 
D) 100 N to the right. 
A) 50 N to the left. 
B) 50 N to the right. 
C) 100 N to the left. 
D) 100 N to the right.

Question 8

When Galileo rolled a ball down an incline and up another incline,he found that the ball rolled nearly to

Accepted Answer

A) its initial height. 
B) halfway its original height. 
C) three-quarters its original height. 
D) higher than its original height. 
A) its initial height. 
B) halfway its original height. 
C) three-quarters its original height. 
D) higher than its original height.

Question 9

A kilogram is a unit of

Accepted Answer

A) mass. 
B) weight. 
C) both the same 
D) none of the above 
A) mass. 
B) weight. 
C) both the same 
D) none of the above

Question 10

According to Galileo,inertia is a

Accepted Answer

A) force like any other force. 
B) special kind of force. 
C) property of all matter. 
D) concept opposite to force. 
A) force like any other force. 
B) special kind of force. 
C) property of all matter. 
D) concept opposite to force.

Question 11

The speed of a vertically-thrown ball at the top of its path is

Accepted Answer

A) zero. 
B) 10 m/s2. 
C) between zero and 10 m/s2. 
D) dependent on the mass of the ball. 
A) zero. 
B) 10 m/s2. 
C) between zero and 10 m/s2. 
D) dependent on the mass of the ball.

Question 12

A baseball weighs 1.5 N on Earth.Another type of ball weighs 1.5 N on the Moon.The ball with the greater mass is the

Accepted Answer

A) baseball. 
B) other type of ball. 
C) same for each. 
D) not enough information 
A) baseball. 
B) other type of ball. 
C) same for each. 
D) not enough information

Question 13

A mosquito flying at 3 m/s encounters a 3-m/s breeze blowing in the opposite direction,which gives it a resulting speed over the ground of

Accepted Answer

A) 0 m/s. 
B) 3 m/s. 
C) 4 m/s. 
D) 6 m/s. 
A) 0 m/s. 
B) 3 m/s. 
C) 4 m/s. 
D) 6 m/s.

Question 14

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. 
A) 0.8 m. 
B) 1 m. 
C) 1.2 m. 
D) 2.5 m. 
E) more than 2.5 m.

Question 15

A motor scooter undergoes acceleration when it

Accepted Answer

A) gains speed. 
B) decreases speed. 
C) changes direction. 
D) all of the above 
A) gains speed. 
B) decreases speed. 
C) changes direction. 
D) all of the above

Question 16

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

Question 17

When a crate slides down an incline at a constant velocity it is

Accepted Answer

A) in dynamic equilibrium. 
B) not in dynamic equilibrium. 
C) in a state of being in and out of dynamic equilibrium. 
D) none of the above 
A) in dynamic equilibrium. 
B) not in dynamic equilibrium. 
C) in a state of being in and out of dynamic equilibrium. 
D) none of the above

Question 18

Galileo's demonstration at the Leaning Tower of Pisa

Accepted Answer

A) confirmed Aristotle's teachings. 
B) refuted Aristotle's teachings. 
C) failed in their purpose. 
D) none of the above 
A) confirmed Aristotle's teachings. 
B) refuted Aristotle's teachings. 
C) failed in their purpose. 
D) none of the above

Question 19

The equilibrium rule states that the vector sum of all forces acting on a

Accepted Answer

A) body at rest is zero. 
B) body in uniform motion is zero. 
C) non-accelerating body is zero. 
D) all of the above 
A) body at rest is zero. 
B) body in uniform motion is zero. 
C) non-accelerating body is zero. 
D) all of the above

Question 20

A heavy ball hangs by a string,with a second string attached to its bottom (Figure 1.7 in your text).A quick pull on the bottom string breaks the

Accepted Answer

A) top string. 
B) bottom string. 
C) top or bottom string equally likely. 
D) none of the above 
A) top string. 
B) bottom string. 
C) top or bottom string equally likely. 
D) none of the above

Exam 1: Patterns of Motion and Equilibrium

If you toss a ball straight upward at 40 m/s with no air resistance,one second before it reaches the top of its path its speed is

According to Galileo,a rolled ball eventually comes to a stop because

Once a basketball player's feet are off the floor in making a jump,the jumper's acceleration

When Lillian hangs from a pair of gym rings,the upward support forces by the rings will always

A 1-kg block of iron weighs about

If you toss a ball straight upward at 40 m/s with no air resistance,one second after it reaches the top of its path its speed is

A girl pushes a cart to the left with a 100-N force.At the same time a boy pushes it to the right with a 50-N force.The net force exerted on the cart is

When Galileo rolled a ball down an incline and up another incline,he found that the ball rolled nearly to

A kilogram is a unit of

According to Galileo,inertia is a

The speed of a vertically-thrown ball at the top of its path is

A baseball weighs 1.5 N on Earth.Another type of ball weighs 1.5 N on the Moon.The ball with the greater mass is the

A mosquito flying at 3 m/s encounters a 3-m/s breeze blowing in the opposite direction,which gives it a resulting speed over the ground of

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

A motor scooter undergoes acceleration when it

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

When a crate slides down an incline at a constant velocity it is

Galileo's demonstration at the Leaning Tower of Pisa

The equilibrium rule states that the vector sum of all forces acting on a

A heavy ball hangs by a string,with a second string attached to its bottom (Figure 1.7 in your text).A quick pull on the bottom string breaks the

Newtons Laws of Motion

Momentum and Energy

Gravity, Projectiles, and Satellites

Fluid Mechanics

Thermal Energy and Thermodynamics

Heat Transfer and Change of Phase

Static and Current Electricity

Magnetism and Electromagnetic Induction

Waves and Sound

Light

Atoms and the Periodic Table

The Atomic Nucleus and Radioactivity

Elements of Chemistry

How Atoms Bond and Molecules Attract

Mixtures

How Chemicals React

Two Classes of Chemical Reactions

Organic Compounds

Rocks and Minerals

Plate Tectonics and Earths Interior

Shaping Earths Surface

Geologic Time - Reading the Rock Record

The Oceans, Atmosphere, and Climatic Effects

Driving Forces of Weather

The Solar System

Stars and Galaxies

The Structure of Space and Time

Prologue: The Nature of Science

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