Question 1

Which of the following statements best describes the force of Earth's gravity on a rocket moving upward?

Accepted Answer

A) The gravitational force is constant for all altitudes. 
B) The gravitational force is weaker when the rocket is higher. 
C) The gravitational force is stronger when the rocket is higher. 
D) The gravitational force is zero when the altitude is greater than 10,000 miles. 
A) The gravitational force is constant for all altitudes. 
B) The gravitational force is weaker when the rocket is higher. 
C) The gravitational force is stronger when the rocket is higher. 
D) The gravitational force is zero when the altitude is greater than 10,000 miles.

Question 2

A rise in the temperature inside a kitchen means there is an increase in the

Accepted Answer

A) density of the air molecules. 
B) number of the air molecules. 
C) average size of the air molecules. 
D) average kinetic energy of the air molecules. 
A) density of the air molecules. 
B) number of the air molecules. 
C) average size of the air molecules. 
D) average kinetic energy of the air molecules.

Question 3

A bicycle rider is traveling at 7 m/s. During an 8 s period, the bicycle rider then slows down with a constant acceleration to a speed of 3 m/s.How far does the bicycle rider travel during the 8 s?

Accepted Answer

A) 19 m 
B) 32 m 
C) 40 m 
D) 80 m 
A) 19 m 
B) 32 m 
C) 40 m 
D) 80 m

Question 4

A rock climber weighs 550 N and is carrying a backpack that weighs 50 N. How much total work has been done after she climbs 12 m?

Accepted Answer

A) 50 J 
B) 600 J 
C) 6000 J 
D) 7200 J 
A) 50 J 
B) 600 J 
C) 6000 J 
D) 7200 J

Question 5

The water contained in a geyser system gains energy from the underground material surrounding it. The water molecules gain kinetic energy and this results in an increase in the pressure of the water. Eventually the geyser erupts and expels water into the air above ground. Which of the following types of energy is the source for the initial energy gain of the water?

Accepted Answer

A) electrical 
B) magnetic 
C) mechanical 
D) thermal 
A) electrical 
B) magnetic 
C) mechanical 
D) thermal

Question 6

Which of the following changes occurs as a solid is heated?

Accepted Answer

A) The kinetic energy of the solid decreases. 
B) The average density of the solid increases. 
C) The speci?c heat capacity of the solid decreases. 
D) The average molecular speed in the solid increases. 
A) The kinetic energy of the solid decreases. 
B) The average density of the solid increases. 
C) The speci?c heat capacity of the solid decreases. 
D) The average molecular speed in the solid increases.

Question 7

Which of the following statements identifies the main difference between vector and scalar quantities?

Accepted Answer

A) Only vectors have direction. 
B) Only scalars have magnitude. 
C) Only scalars have units associated with them. 
D) Only vectors have units associated with them. 
A) Only vectors have direction. 
B) Only scalars have magnitude. 
C) Only scalars have units associated with them. 
D) Only vectors have units associated with them.

Exam 32: (AP) Physics: Introductory Physics

Which of the following statements best describes the force of Earth's gravity on a rocket moving upward?

A rise in the temperature inside a kitchen means there is an increase in the

A bicycle rider is traveling at 7 m/s. During an 8 s period, the bicycle rider then slows down with a constant acceleration to a speed of 3 m/s.How far does the bicycle rider travel during the 8 s?

A rock climber weighs 550 N and is carrying a backpack that weighs 50 N. How much total work has been done after she climbs 12 m?

Which of the following changes occurs as a solid is heated?

Which of the following statements identifies the main difference between vector and scalar quantities?

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