Question 1

Which of the following properties is the same for all electromagnetic waves in a vacuum?

Accepted Answer

A) amplitude 
B) frequency 
C) speed 
D) wavelength 
A) amplitude 
B) frequency 
C) speed 
D) wavelength

Question 2

Which of the following describes the mechanical energy of a cart at rest at the top of a steep hill?

Accepted Answer

A) The cart has no mechanical energy. 
B) The cart's mechanical energy is all kinetic. 
C) The cart's mechanical energy is all potential. 
D) The cart's mechanical energy is half potential and half kinetic. 
A) The cart has no mechanical energy. 
B) The cart's mechanical energy is all kinetic. 
C) The cart's mechanical energy is all potential. 
D) The cart's mechanical energy is half potential and half kinetic.

Question 3

In an electromagnetic wave, an electric field exists perpendicular to a magnetic field, and both fields are perpendicular to the direction of travel of the wave. These characteristics indicate that an electromagnetic wave is which of the following wave types?

Accepted Answer

A) gravitational 
B) longitudinal 
C) mechanical 
D) transverse 
A) gravitational 
B) longitudinal 
C) mechanical 
D) transverse

Question 4

Jessica places 1000 g of water at 20.0°C in an insulated cup. The speciic heat capacity of water is 4.20 J/g • °C. What is the inal temperature of the water if 5000 J of energy is added to the water in the insulated cup?

Accepted Answer

A) 20.1°C 
B) 20.5°C 
C) 21.2°C 
D) 25.0°C 
A) 20.1°C 
B) 20.5°C 
C) 21.2°C 
D) 25.0°C

Question 5

To calculate the momentum of a pickup truck with a velocity of 25 m/s east, it is also necessary to know which of the following?

Accepted Answer

A) time elapsed 
B) drive force of the motor 
C) mass of the pickup truck 
D) distance that the pickup travels 
A) time elapsed 
B) drive force of the motor 
C) mass of the pickup truck 
D) distance that the pickup travels

Question 6

Which of the following has the greatest momentum?

Accepted Answer

A) a 60 kg deer moving west at a speed of 16.4 m/s 
B) a 6300 kg elephant moving east at a speed of 0.11 m/ 
C) a 0.42 kg soccer ball moving downfield at a speed of 12 m/s 
D) a 0.03 kg arrow moving toward a target at a speed of 150 m/s 
A) a 60 kg deer moving west at a speed of 16.4 m/s 
B) a 6300 kg elephant moving east at a speed of 0.11 m/ 
C) a 0.42 kg soccer ball moving downfield at a speed of 12 m/s 
D) a 0.03 kg arrow moving toward a target at a speed of 150 m/s

Question 7

0 kg bowling ball is lifted to a storage shelf 1.0 m above the ? oor. A second 7.0 kg ball is lifted to a storage shelf 2.0 m above the ? oor. Which of the following best explains why the measured force of gravity on each ball is nearly identical?

Accepted Answer

A) The ?nal potential energy of each ball increased. 
B) The amount of work required to lift each ball is identical. 
C) The distance of each ball from Earth's center of mass is almost identical. 
D) The gravitational force of each ball on the other cancels out the force of Earth's gravity. 
A) The ?nal potential energy of each ball increased. 
B) The amount of work required to lift each ball is identical. 
C) The distance of each ball from Earth's center of mass is almost identical. 
D) The gravitational force of each ball on the other cancels out the force of Earth's gravity.

Question 8

Some campers are sitting around a camp?re outside their tent. Which product of the ?re is in the form of electromagnetic waves?

Accepted Answer

A) light 
B) smoke 
C) sound 
D) water vapor 
A) light 
B) smoke 
C) sound 
D) water vapor

Question 9

Which of the following statements best explains why drops of liquid form on the outside of a glass of ice water on a hot day?

Accepted Answer

A) Water molecules in the air are attracted to the surface of the glass. 
B) Water molecules in the ice water lose energy as they transfer heat to the air. 
C) Water molecules in the air lose energy as they transfer heat to the cold glass. 
D) Water molecules in the ice water move through the glass pores to the outside of the glass. 
A) Water molecules in the air are attracted to the surface of the glass. 
B) Water molecules in the ice water lose energy as they transfer heat to the air. 
C) Water molecules in the air lose energy as they transfer heat to the cold glass. 
D) Water molecules in the ice water move through the glass pores to the outside of the glass.

Question 10

A large spring is stretched horizontally between two people. One person wiggles the spring up and down at one end. The up-and-down vibration then moves along the spring to the other person. Which of the following types of wave is created in the spring?

Accepted Answer

A) pressure wave 
B) transverse wave 
C) longitudinal wave 
D) nonmechanical wave 
A) pressure wave 
B) transverse wave 
C) longitudinal wave 
D) nonmechanical wave

Question 11

What is the mass of an object weighing 63 N on Earth?

Accepted Answer

A)  0.1 kg 
B)  6.3 kg 
C)  73 kg 
D)  617 kg 
A)  0.1 kg 
B)  6.3 kg 
C)  73 kg 
D)  617 kg

Question 12

To make ice, water must irst be cooled. The speciic heat of water is 4,186 J/kg • °C. Approximately how much heat must be removed from 0.50 kg of water to change its temperature from 24°C to 5°C?

Accepted Answer

A) 0 J 
B) 19,900 J 
C) 39,800 J 
D) 79,500 J 
A) 0 J 
B) 19,900 J 
C) 39,800 J 
D) 79,500 J

Question 13

People perceive sound differently in air than they do under water. Which of the following correctly compares the motion of sound waves in air and in water?

Accepted Answer

A) Sound waves travel faster in air than in water. 
B) Sound waves travel slower in air than in water. 
C) Sound waves travel in air but do not travel in water. 
D) Sound waves travel at the same speed in air and in water. 
A) Sound waves travel faster in air than in water. 
B) Sound waves travel slower in air than in water. 
C) Sound waves travel in air but do not travel in water. 
D) Sound waves travel at the same speed in air and in water.

Question 14

In a television set with a cathode ray tube display, a beam of negatively charged particles called cathode rays passes by a positively charged plate. The beam is deflected before it hits the television screen to produce an image. Which of the following changes would result in the greatest increase in the attraction between the negatively charged particles in the beam and the positively charged plate?

Accepted Answer

A) increasing the distance between the plate and the particles and increasing the charge on the plate 
B) increasing the distance between the plate and the particles and decreasing the charge on the plate 
C) decreasing the distance between the plate and the particles and increasing the charge on the plate 
D) decreasing the distance between the plate and the particles and decreasing the charge on the plate 
A) increasing the distance between the plate and the particles and increasing the charge on the plate 
B) increasing the distance between the plate and the particles and decreasing the charge on the plate 
C) decreasing the distance between the plate and the particles and increasing the charge on the plate 
D) decreasing the distance between the plate and the particles and decreasing the charge on the plate

Question 15

A balloon is rubbed against a sweater. Which of the following occurs because of the rubbing?

Accepted Answer

A) destruction of charged particles on the balloon 
B) release of charged particles from the air in the balloon 
C) movement of negatively charged particles from one material to the other 
D) movement of positively charged particles from one material to the other 
A) destruction of charged particles on the balloon 
B) release of charged particles from the air in the balloon 
C) movement of negatively charged particles from one material to the other 
D) movement of positively charged particles from one material to the other

Question 16

A meteoroid with a mass of 1,000 kg enters Earth's atmosphere with a locity of 4,400 m/s. What is the magnitude of the meteoroid's momentum at that instant?

Accepted Answer

A) 44 kg • m/s 
B) 2,200,000 kg • m/s 
C) 4,400,000 kg • m/s 
D) 9,680,000,000 kg • m/s 
A) 44 kg • m/s 
B) 2,200,000 kg • m/s 
C) 4,400,000 kg • m/s 
D) 9,680,000,000 kg • m/s

Question 17

Which of the following statements describes a result of Earth's gravitational pull on the Moon?

Accepted Answer

A) The Moon has craters. 
B) The Moon orbits around Earth. 
C) The Moon lacks an atmosphere. 
D) The Moon has less gravity than Earth. 
A) The Moon has craters. 
B) The Moon orbits around Earth. 
C) The Moon lacks an atmosphere. 
D) The Moon has less gravity than Earth.

Question 18

Three different boxes are lifted to different heights.
Box X weighs 115 N and is lifted to 15 m.
Box Y weighs 210 N and is lifted to 10 m.
Box Z weighs 305 N and is lifted to 5 m.
Which of the following statements best describes the boxes' change in mechanical energy?

Accepted Answer

A) Box X had the greatest change in mechanical energy. 
B) Box Z had the smallest change in mechanical energy. 
C) Boxes X and Y had the same change in mechanical energy. 
D) Boxes Y and Z had the same change in mechanical energy. 
A) Box X had the greatest change in mechanical energy. 
B) Box Z had the smallest change in mechanical energy. 
C) Boxes X and Y had the same change in mechanical energy. 
D) Boxes Y and Z had the same change in mechanical energy.

Question 19

Two oppositely charged objects are separated by a small distance. The objects are then moved three times farther apart from each other. Which of the following statements best describes what happens to the electrical force between the objects?

Accepted Answer

A) The force of attraction increases. 
B) The force of attraction decreases. 
C) The force of attraction becomes zero. 
D) The force of attraction stays the same. 
A) The force of attraction increases. 
B) The force of attraction decreases. 
C) The force of attraction becomes zero. 
D) The force of attraction stays the same.

Question 20

Which of the following statements best explains why there is no change in temperature once thermal equilibrium between two objects in contact is reached?

Accepted Answer

A) Heat can flow between two objects in contact. 
B) Heat does not flow between objects in contact at the same temperature. 
C) Heat does not flow spontaneously from a cooler object to a warmer object. 
D) Heat flows by conduction, convection, and radiation when the temperatures are the same. 
A) Heat can flow between two objects in contact. 
B) Heat does not flow between objects in contact at the same temperature. 
C) Heat does not flow spontaneously from a cooler object to a warmer object. 
D) Heat flows by conduction, convection, and radiation when the temperatures are the same.

Exam 32: (AP) Physics: Introductory Physics

Which of the following properties is the same for all electromagnetic waves in a vacuum?

Which of the following describes the mechanical energy of a cart at rest at the top of a steep hill?

In an electromagnetic wave, an electric field exists perpendicular to a magnetic field, and both fields are perpendicular to the direction of travel of the wave. These characteristics indicate that an electromagnetic wave is which of the following wave types?

Jessica places 1000 g of water at 20.0°C in an insulated cup. The speciic heat capacity of water is 4.20 J/g • °C. What is the inal temperature of the water if 5000 J of energy is added to the water in the insulated cup?

To calculate the momentum of a pickup truck with a velocity of 25 m/s east, it is also necessary to know which of the following?

Which of the following has the greatest momentum?

0 kg bowling ball is lifted to a storage shelf 1.0 m above the ? oor. A second 7.0 kg ball is lifted to a storage shelf 2.0 m above the ? oor. Which of the following best explains why the measured force of gravity on each ball is nearly identical?

Some campers are sitting around a camp?re outside their tent. Which product of the ?re is in the form of electromagnetic waves?

Which of the following statements best explains why drops of liquid form on the outside of a glass of ice water on a hot day?

A large spring is stretched horizontally between two people. One person wiggles the spring up and down at one end. The up-and-down vibration then moves along the spring to the other person. Which of the following types of wave is created in the spring?

What is the mass of an object weighing 63 N on Earth?

To make ice, water must irst be cooled. The speciic heat of water is 4,186 J/kg • °C. Approximately how much heat must be removed from 0.50 kg of water to change its temperature from 24°C to 5°C?

People perceive sound differently in air than they do under water. Which of the following correctly compares the motion of sound waves in air and in water?

A balloon is rubbed against a sweater. Which of the following occurs because of the rubbing?

A meteoroid with a mass of 1,000 kg enters Earth's atmosphere with a locity of 4,400 m/s. What is the magnitude of the meteoroid's momentum at that instant?

Which of the following statements describes a result of Earth's gravitational pull on the Moon?

Three different boxes are lifted to different heights. Box X weighs 115 N and is lifted to 15 m. Box Y weighs 210 N and is lifted to 10 m. Box Z weighs 305 N and is lifted to 5 m. Which of the following statements best describes the boxes' change in mechanical energy?

Two oppositely charged objects are separated by a small distance. The objects are then moved three times farther apart from each other. Which of the following statements best describes what happens to the electrical force between the objects?

Which of the following statements best explains why there is no change in temperature once thermal equilibrium between two objects in contact is reached?

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