Question 1

A Mack truck and a Volkswagen traveling at the same speed have a head-on collision. The vehicle that undergoes the greatest change in velocity will be the

Accepted Answer

A)  Mack truck. 
B)  Volkswagen. 
C)  same for both. 
A)  Mack truck. 
B)  Volkswagen. 
C)  same for both.

Question 2

A 10.0 N force is pulling up on the ring of spring scale that weighs 2.0 N. If an 8.0 N mass is attached to the bottom hook of the scale, the scale reading would be

Accepted Answer

A)  8.0 N. 
B)  2.0 N. 
C)  10.0 N 
D)  0 N. 
E)  12.0 N 
A)  8.0 N. 
B)  2.0 N. 
C)  10.0 N 
D)  0 N. 
E)  12.0 N

Question 3

A 1-kg rock that weighs 9.8 N is thrown straight upward at 20 m/s. Neglecting air resistance, the net force that acts on it when it is half way to the top of its path is

Accepted Answer

A)  more than 9.8 N. 
B)  9.8 N. 
C)  less than 9.8 N. 
A)  more than 9.8 N. 
B)  9.8 N. 
C)  less than 9.8 N.

Question 4

A pair of tennis balls fall through the air from a tall building. One of them is filled with lead pellets. The ball to reach the ground first is the

Accepted Answer

A)  lead-filled ball. 
B)  regular ball. 
C)  same for both. 
A)  lead-filled ball. 
B)  regular ball. 
C)  same for both.

Question 5

The mass of a pet turtle that weighs 10 N is

Accepted Answer

A)  about 1000 kg. 
B)  about 100 kg. 
C)  about 1 kg. 
D)  about 10 kg. 
E)  none of these 
A)  about 1000 kg. 
B)  about 100 kg. 
C)  about 1 kg. 
D)  about 10 kg. 
E)  none of these

Question 6

A heavy rock and a light rock of the same size are falling through the air from a tall building. The one that encounters the greatest air resistance is the

Accepted Answer

A)  light rock. 
B)  heavy rock. 
C)  same for both. 
A)  light rock. 
B)  heavy rock. 
C)  same for both.

Question 7

Your weight is

Accepted Answer

A)  a property of mechanical equilibrium. 
B)  equal to your mass. 
C)  the gravitational attraction force between you and the Earth. 
D)  all of these 
A)  a property of mechanical equilibrium. 
B)  equal to your mass. 
C)  the gravitational attraction force between you and the Earth. 
D)  all of these

Question 8

An object is pulled northward by a force of 10 N and at the same time another force of 15N pulls it southward. The magnitude of the resultant force on the object is

Accepted Answer

A)  150 N. 
B)  5 N. 
C)  25 N. 
D)  0 N. 
A)  150 N. 
B)  5 N. 
C)  25 N. 
D)  0 N.

Question 9

If an object's mass is decreasing while a constant force is applied to the object, the acceleration

Accepted Answer

A)  decreases. 
B)  remains the same. 
C)  increases. 
A)  decreases. 
B)  remains the same. 
C)  increases.

Question 10

When a woman stands at rest with both feet on a scale, it reads 500 N. When she gently lifts one foot, the scale reads

Accepted Answer

A)  less than 500 N. 
B)  500 N. 
C)  more than 500 N. 
A)  less than 500 N. 
B)  500 N. 
C)  more than 500 N.

Question 11

A baseball player bats a ball with a force of 1000 N. The reaction force that the ball exerts against the bat is

Accepted Answer

A)  1000 N. 
B)  more than 1000 N. 
C)  less than 1000 N. 
D)  impossible to determine. 
A)  1000 N. 
B)  more than 1000 N. 
C)  less than 1000 N. 
D)  impossible to determine.

Question 12

A 500-N parachutist opens his chute and experiences an air resistance force of 800 N. The net force on the parachutist is

Accepted Answer

A)  300 N downward. 
B)  500 N downward. 
C)  800 N downward. 
D)  300 N upward. 
E)  500 N upward. 
A)  300 N downward. 
B)  500 N downward. 
C)  800 N downward. 
D)  300 N upward. 
E)  500 N upward.

Question 13

A ball thrown straight upward takes 10 seconds to go up and return to the ground. Because of air resistance, the time taken for the ball just to go up is

Accepted Answer

A)  5 s. 
B)  more than 5 s. 
C)  less than 5 s. 
A)  5 s. 
B)  more than 5 s. 
C)  less than 5 s.

Question 14

A girl pulls on a 10-kg wagon with a constant horizontal force of 30 N. If there are no other horizontal forces, what is the wagon's acceleration in meters per second per second?

Accepted Answer

A)  10 
B)  0.3 
C)  30 
D)  3.0 
E)  300 
A)  10 
B)  0.3 
C)  30 
D)  3.0 
E)  300

Question 15

An astronaut on another planet drops a 1-kg rock from rest. The astronaut notices that the rock falls 2 meters straight down in one second. On this planet, how much does the rock weigh?

Accepted Answer

A)  5 N 
B)  1 N 
C)  4 N 
D)  4.9 N 
A)  5 N 
B)  1 N 
C)  4 N 
D)  4.9 N

A Mack truck and a Volkswagen traveling at the same speed have a head-on collision. The vehicle that undergoes the greatest change in velocity will be the

A 10.0 N force is pulling up on the ring of spring scale that weighs 2.0 N. If an 8.0 N mass is attached to the bottom hook of the scale, the scale reading would be

A 1-kg rock that weighs 9.8 N is thrown straight upward at 20 m/s. Neglecting air resistance, the net force that acts on it when it is half way to the top of its path is

A pair of tennis balls fall through the air from a tall building. One of them is filled with lead pellets. The ball to reach the ground first is the

The mass of a pet turtle that weighs 10 N is

A heavy rock and a light rock of the same size are falling through the air from a tall building. The one that encounters the greatest air resistance is the

Your weight is

An object is pulled northward by a force of 10 N and at the same time another force of 15N pulls it southward. The magnitude of the resultant force on the object is

If an object's mass is decreasing while a constant force is applied to the object, the acceleration

When a woman stands at rest with both feet on a scale, it reads 500 N. When she gently lifts one foot, the scale reads

A baseball player bats a ball with a force of 1000 N. The reaction force that the ball exerts against the bat is

A 500-N parachutist opens his chute and experiences an air resistance force of 800 N. The net force on the parachutist is

A ball thrown straight upward takes 10 seconds to go up and return to the ground. Because of air resistance, the time taken for the ball just to go up is

A girl pulls on a 10-kg wagon with a constant horizontal force of 30 N. If there are no other horizontal forces, what is the wagon's acceleration in meters per second per second?

An astronaut on another planet drops a 1-kg rock from rest. The astronaut notices that the rock falls 2 meters straight down in one second. On this planet, how much does the rock weigh?

About Science

Atoms

Equilibrium and Linear 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

Physics of Rotation and Equilibrium

Filters

Exam 4: Newtons Laws of Motion

A Mack truck and a Volkswagen traveling at the same speed have a head-on collision. The vehicle that undergoes the greatest change in velocity will be the

A 10.0 N force is pulling up on the ring of spring scale that weighs 2.0 N. If an 8.0 N mass is attached to the bottom hook of the scale, the scale reading would be

A 1-kg rock that weighs 9.8 N is thrown straight upward at 20 m/s. Neglecting air resistance, the net force that acts on it when it is half way to the top of its path is

A pair of tennis balls fall through the air from a tall building. One of them is filled with lead pellets. The ball to reach the ground first is the

The mass of a pet turtle that weighs 10 N is

A heavy rock and a light rock of the same size are falling through the air from a tall building. The one that encounters the greatest air resistance is the

Your weight is

An object is pulled northward by a force of 10 N and at the same time another force of 15N pulls it southward. The magnitude of the resultant force on the object is

If an object's mass is decreasing while a constant force is applied to the object, the acceleration

When a woman stands at rest with both feet on a scale, it reads 500 N. When she gently lifts one foot, the scale reads

A baseball player bats a ball with a force of 1000 N. The reaction force that the ball exerts against the bat is

A 500-N parachutist opens his chute and experiences an air resistance force of 800 N. The net force on the parachutist is

A ball thrown straight upward takes 10 seconds to go up and return to the ground. Because of air resistance, the time taken for the ball just to go up is

A girl pulls on a 10-kg wagon with a constant horizontal force of 30 N. If there are no other horizontal forces, what is the wagon's acceleration in meters per second per second?

An astronaut on another planet drops a 1-kg rock from rest. The astronaut notices that the rock falls 2 meters straight down in one second. On this planet, how much does the rock weigh?

About Science

Atoms

Equilibrium and Linear 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

Physics of Rotation and Equilibrium

Filters