Question 1

A tightrope walker more easily balances on a tightwire if his pole

Accepted Answer

A)  is short but heavy. 
B)  is held high. 
C)  droops. 
A)  is short but heavy. 
B)  is held high. 
C)  droops.

Question 2

A 1-kg rock is suspended from the tip of a meter stick at the 0- cm mark so that the meter stick balances like a see-saw when the fulcrum is at the 25-cm mark. From this information, what is the
Mass of the meter stick?

Accepted Answer

A)  1/4 kg 
B)  1 kg 
C)  3/4 kg 
D)  1/2 kg 
E)  more than 1 kg 
A)  1/4 kg 
B)  1 kg 
C)  3/4 kg 
D)  1/2 kg 
E)  more than 1 kg

Question 3

Suppose the circumference of a bicycle wheel is 2 meters. If it rotates at 1 revolution per second when you are riding the bicycle, then your speed will be

Accepted Answer

A)  6.28 m/s. 
B)  2 m/s. 
C)  3.14 m/s. 
D)  1 m/s. 
E)  3 m/s. 
A)  6.28 m/s. 
B)  2 m/s. 
C)  3.14 m/s. 
D)  1 m/s. 
E)  3 m/s.

Question 4

The chef at the infamous Fattening Tower of Pizza tosses a spinning disk of uncooked pizza dough into the air. The disk's diameter increases during the flight, while its rotational speed

Accepted Answer

A)  increases. 
B)  remains constant. 
C)  decreases. 
A)  increases. 
B)  remains constant. 
C)  decreases.

Question 5

Put a pipe over the end of a wrench when trying to turn a stubborn nut on a bolt, to effectively make the wrench handle twice as long, you'll multiply the torque by

Accepted Answer

A)  four. 
B)  two. 
C)  eight. 
A)  four. 
B)  two. 
C)  eight.

Question 6

A person weighs less at the equator than at the poles. The main reason for this has to do with

Accepted Answer

A)  the law of action and reaction. 
B)  the influence of the sun, moon, and all the planets. 
C)  the spin of the Earth. 
D)  the shape of the Earth. 
E)  both the spin of the Earth and the shape of the Earth. 
A)  the law of action and reaction. 
B)  the influence of the sun, moon, and all the planets. 
C)  the spin of the Earth. 
D)  the shape of the Earth. 
E)  both the spin of the Earth and the shape of the Earth.

Question 7

A torque acting on an object tends to produce

Accepted Answer

A)  a center of gravity. 
B)  velocity. 
C)  equilibrium. 
D)  linear motion. 
E)  rotation. 
A)  a center of gravity. 
B)  velocity. 
C)  equilibrium. 
D)  linear motion. 
E)  rotation.

Question 8

A coin and a ring roll down an incline starting at the same time. The one to reach the bottom first will be the

Accepted Answer

A)  ring. 
B)  coin. 
C)  Both reach the bottom at the same time. 
A)  ring. 
B)  coin. 
C)  Both reach the bottom at the same time.

Question 9

On a balanced see saw, a boy three times as heavy as his partner sits

Accepted Answer

A)  less than 1/3 the distance from the fulcrum. 
B)  1/3 the distance from the fulcrum. 
C)  more than 1/3 the distance from the fulcrum. 
A)  less than 1/3 the distance from the fulcrum. 
B)  1/3 the distance from the fulcrum. 
C)  more than 1/3 the distance from the fulcrum.

Question 10

If a record player's rotational speed is doubled, then the linear speed of a pet hamster sitting on the edge of the record will

Accepted Answer

A)  halve. 
B)  double. 
C)  remain the same. 
A)  halve. 
B)  double. 
C)  remain the same.

Question 11

The famous Leaning Tower of Pisa doesn't topple over because its center of gravity is

Accepted Answer

A)  displaced from its center. 
B)  in the same place as its center of mass. 
C)  relatively low for such a tall building. 
D)  above a place of support. 
E)  stabilized by its structure. 
A)  displaced from its center. 
B)  in the same place as its center of mass. 
C)  relatively low for such a tall building. 
D)  above a place of support. 
E)  stabilized by its structure.

A tightrope walker more easily balances on a tightwire if his pole

A 1-kg rock is suspended from the tip of a meter stick at the 0- cm mark so that the meter stick balances like a see-saw when the fulcrum is at the 25-cm mark. From this information, what is the Mass of the meter stick?

Suppose the circumference of a bicycle wheel is 2 meters. If it rotates at 1 revolution per second when you are riding the bicycle, then your speed will be

The chef at the infamous Fattening Tower of Pizza tosses a spinning disk of uncooked pizza dough into the air. The disk's diameter increases during the flight, while its rotational speed

Put a pipe over the end of a wrench when trying to turn a stubborn nut on a bolt, to effectively make the wrench handle twice as long, you'll multiply the torque by

A person weighs less at the equator than at the poles. The main reason for this has to do with

A torque acting on an object tends to produce

A coin and a ring roll down an incline starting at the same time. The one to reach the bottom first will be the

On a balanced see saw, a boy three times as heavy as his partner sits

If a record player's rotational speed is doubled, then the linear speed of a pet hamster sitting on the edge of the record will

The famous Leaning Tower of Pisa doesn't topple over because its center of gravity is

About Science

Atoms

Equilibrium and Linear Motion

Newtons Laws of Motion

Momentum and Energy

Gravity, Projectiles, and Satellites

Fluid Mechanics

Temperature, Heat, and Thermodynamics

Heat Transfer and Change of Phase

Static and Current Electricity

Magnetism and Electromagnetic Induction

Waves and Sound

Light Waves

Properties of Light

Quantum Theory

The Atomic Nucleus and Radioactivity

Filters

Exam 17: Physics of Rotation and Equilibrium

A tightrope walker more easily balances on a tightwire if his pole

A 1-kg rock is suspended from the tip of a meter stick at the 0- cm mark so that the meter stick balances like a see-saw when the fulcrum is at the 25-cm mark. From this information, what is the Mass of the meter stick?

Suppose the circumference of a bicycle wheel is 2 meters. If it rotates at 1 revolution per second when you are riding the bicycle, then your speed will be

The chef at the infamous Fattening Tower of Pizza tosses a spinning disk of uncooked pizza dough into the air. The disk's diameter increases during the flight, while its rotational speed

Put a pipe over the end of a wrench when trying to turn a stubborn nut on a bolt, to effectively make the wrench handle twice as long, you'll multiply the torque by

A person weighs less at the equator than at the poles. The main reason for this has to do with

A torque acting on an object tends to produce

A coin and a ring roll down an incline starting at the same time. The one to reach the bottom first will be the

On a balanced see saw, a boy three times as heavy as his partner sits

If a record player's rotational speed is doubled, then the linear speed of a pet hamster sitting on the edge of the record will

The famous Leaning Tower of Pisa doesn't topple over because its center of gravity is

About Science

Atoms

Equilibrium and Linear Motion

Newtons Laws of Motion

Momentum and Energy

Gravity, Projectiles, and Satellites

Fluid Mechanics

Temperature, Heat, and Thermodynamics

Heat Transfer and Change of Phase

Static and Current Electricity

Magnetism and Electromagnetic Induction

Waves and Sound

Light Waves

Properties of Light

Quantum Theory

The Atomic Nucleus and Radioactivity

Filters