Question 1

Acceleration due to Earth's gravity is -9.8 m/s2. Which part of this number gives the information on direction, making it a vector quantity?

Accepted Answer

A) We know it is a vector quantity because the seconds are squared in the units. 
B) We know it is a vector quantity because the negative sign tells us the acceleration is upward. 
C) We know it is a vector quantity because the negative sign tells us the acceleration is downward. 
D) We know it is a vector quantity because the negative sign tells us the magnitude of the acceleration. 
A) We know it is a vector quantity because the seconds are squared in the units. 
B) We know it is a vector quantity because the negative sign tells us the acceleration is upward. 
C) We know it is a vector quantity because the negative sign tells us the acceleration is downward. 
D) We know it is a vector quantity because the negative sign tells us the magnitude of the acceleration.

Question 2

If a wave in a string travels at 52 m/s and has a wavelength of 0.65 m, what is the frequency?

Accepted Answer

A) 0)0125 Hz 
B) 80 Hz 
C) 12.5 Hz 
D) 65 Hz 
A) 0)0125 Hz 
B) 80 Hz 
C) 12.5 Hz 
D) 65 Hz

Question 3

Which one of the following is the definition of Frequency of a wave?

Accepted Answer

A) The displacement of the wave from its rest position 
B) Highest point of a transverse wave 
C) Measurement of time per a single wave to be created 
D) The number of waves created per second 
A) The displacement of the wave from its rest position 
B) Highest point of a transverse wave 
C) Measurement of time per a single wave to be created 
D) The number of waves created per second

Question 4

A 2.4 Volt beard trimmer has a 12 Ohm resistance. What current flows through the trimmer?

Accepted Answer

A) 0.02 A 
B) 0.2 A 
C) 2 A 
D) 20 A 
A) 0.02 A 
B) 0.2 A 
C) 2 A 
D) 20 A

Question 5

A 2 kg basketball is thrown through the air northward with a velocity of 2 m/s. What is its momentum?

Accepted Answer

A) 4 kg m/s north 
B) 8 kg m/s north 
C) 2 kg m/s north 
D) 40 kg m/s north 
A) 4 kg m/s north 
B) 8 kg m/s north 
C) 2 kg m/s north 
D) 40 kg m/s north

Question 6

A person jumps in the air. When they reach their peak height, they are 0.65m off of the ground. The person as a mass of 83 kg. What is their gravitational potential energy?

Accepted Answer

A) 515 J 
B) 530 J 
C) 545 J 
D) 560 J 
A) 515 J 
B) 530 J 
C) 545 J 
D) 560 J

Question 7

What is the force of attraction that exists between a car and a motorcycle if they are parked 1.4 m away from each other. The car weighs 1,375 kg and the motorcycle weighs 180 kg.

Accepted Answer

A) 4.2 x 10-6 N 
B) 8.4 x 10-6 N 
C) 1.1 x 10-5 N 
D) 1.6 x 10-5 N 
A) 4.2 x 10-6 N 
B) 8.4 x 10-6 N 
C) 1.1 x 10-5 N 
D) 1.6 x 10-5 N

Question 8

Energy, both Kinetic and Potential, are expressed in what units?

Accepted Answer

A) Kilograms 
B) Meters/second 
C) Joules 
D) Kilometers 
A) Kilograms 
B) Meters/second 
C) Joules 
D) Kilometers

Question 9

The gravitational acceleration constant for the moon is -1.62 m/s2. If a person has a mass of 76 kg on earth, what is their weight on the moon?

Accepted Answer

A) 76 N 
B) 7)75 N 
C) 12.55 N 
D) 123 N 
A) 76 N 
B) 7)75 N 
C) 12.55 N 
D) 123 N

Question 10

Which of the following is a scalar quantity?

Accepted Answer

A) 10 steps up 
B) 10 miles north 
C) 10 paces 
D) 10 yards to the right 
A) 10 steps up 
B) 10 miles north 
C) 10 paces 
D) 10 yards to the right

Question 11

A 20 kg bicycle is accelerated from 3 m/s to 4 m/s. What is its change in momentum?

Accepted Answer

A) 20 kg m/s 
B) 2 kg m/s 
C) 200 kg m/s 
D) 20 m/s 
A) 20 kg m/s 
B) 2 kg m/s 
C) 200 kg m/s 
D) 20 m/s

Question 12

A 9 Volt flashlight uses a bulb with 30 Ohm resistance. What current flows through the flashlight?

Accepted Answer

A) 0.03 A 
B) 0.3 A 
C) 3 A 
D) 3.33 A 
A) 0.03 A 
B) 0.3 A 
C) 3 A 
D) 3.33 A

Question 13

How many amperes does a 220 Volt hair drier draw when it delivers 2200 Watts of power?

Accepted Answer

A) 0.1 A 
B) 1 A 
C) 10 A 
D) 100 A 
A) 0.1 A 
B) 1 A 
C) 10 A 
D) 100 A

Question 14

A 5 kg ball rolls down a hill at a velocity of 1.5 m/s. By the time it reaches the bottom of the hill, it is traveling with a velocity of 2 m/s. What is the change in the ball's momentum?

Accepted Answer

A) 25 kg m/s 
B) 2.5 m/s 
C) 2.5 kg m/s 
D) 0.25 kg m/s 
A) 25 kg m/s 
B) 2.5 m/s 
C) 2.5 kg m/s 
D) 0.25 kg m/s

Question 15

Which variable is replaced with g = - 9.8 m/s2 in the equation F=ma when the force is gravity?

Accepted Answer

A) F 
B) m 
C) a 
D) None of the above 
A) F 
B) m 
C) a 
D) None of the above

Question 16

A ball is dropped from a building onto a scale below. The scale reads 92.5 N at the moment of impact. What is the mass of the ball?

Accepted Answer

A) 9.2 kg 
B) -9.2 kg 
C) -9.4 kg 
D) 9.4 kg 
A) 9.2 kg 
B) -9.2 kg 
C) -9.4 kg 
D) 9.4 kg

Question 17

Experiments have shown that the maximum wavelength of a sound wave that a healthy person can hear is 17 meters. What would be the frequency of this sound? (The speed of sound is 340 m/s)

Accepted Answer

A) 0.05 Hz 
B) 0.34 Hz 
C) 20 Hz 
D) 25 Hz 
A) 0.05 Hz 
B) 0.34 Hz 
C) 20 Hz 
D) 25 Hz

Question 18

A car that has a mass of 800 kg slows down. The brakes exert a force of -2780 N. What is the acceleration of the car?

Accepted Answer

A) 2.7 m/s² 
B) -2.7 m/s² 
C) 3.5 m/s² 
D) -3.5 m/s² 
A) 2.7 m/s² 
B) -2.7 m/s² 
C) 3.5 m/s² 
D) -3.5 m/s²

Question 19

What is the force that an object exerts on the ground due to gravity called?

Accepted Answer

A) Mass 
B) Heaviness 
C) Density 
D) Weight 
A) Mass 
B) Heaviness 
C) Density 
D) Weight

Question 20

Two objects are placed 75 m apart. If the two objects have masses of 3.6 kg and 3.5 kg, what is the force of attraction between the objects?

Accepted Answer

A) 3.0 x 10-13 N 
B) 4.6 x 10-13 N 
C) 1.5 x 10-11 N 
D) 1.5 x 10-13 N 
A) 3.0 x 10-13 N 
B) 4.6 x 10-13 N 
C) 1.5 x 10-11 N 
D) 1.5 x 10-13 N

Acceleration due to Earth's gravity is -9.8 m/s². Which part of this number gives the information on direction, making it a vector quantity?

If a wave in a string travels at 52 m/s and has a wavelength of 0.65 m, what is the frequency?

Which one of the following is the definition of Frequency of a wave?

A 2.4 Volt beard trimmer has a 12 Ohm resistance. What current flows through the trimmer?

A 2 kg basketball is thrown through the air northward with a velocity of 2 m/s. What is its momentum?

A person jumps in the air. When they reach their peak height, they are 0.65m off of the ground. The person as a mass of 83 kg. What is their gravitational potential energy?

What is the force of attraction that exists between a car and a motorcycle if they are parked 1.4 m away from each other. The car weighs 1,375 kg and the motorcycle weighs 180 kg.

Energy, both Kinetic and Potential, are expressed in what units?

The gravitational acceleration constant for the moon is -1.62 m/s². If a person has a mass of 76 kg on earth, what is their weight on the moon?

Which of the following is a scalar quantity?

A 20 kg bicycle is accelerated from 3 m/s to 4 m/s. What is its change in momentum?

A 9 Volt flashlight uses a bulb with 30 Ohm resistance. What current flows through the flashlight?

How many amperes does a 220 Volt hair drier draw when it delivers 2200 Watts of power?

A 5 kg ball rolls down a hill at a velocity of 1.5 m/s. By the time it reaches the bottom of the hill, it is traveling with a velocity of 2 m/s. What is the change in the ball's momentum?

Which variable is replaced with g = - 9.8 m/s² in the equation F=ma when the force is gravity?

A ball is dropped from a building onto a scale below. The scale reads 92.5 N at the moment of impact. What is the mass of the ball?

Experiments have shown that the maximum wavelength of a sound wave that a healthy person can hear is 17 meters. What would be the frequency of this sound? (The speed of sound is 340 m/s)

A car that has a mass of 800 kg slows down. The brakes exert a force of -2780 N. What is the acceleration of the car?

What is the force that an object exerts on the ground due to gravity called?

Two objects are placed 75 m apart. If the two objects have masses of 3.6 kg and 3.5 kg, what is the force of attraction between the objects?

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Exam 7: HESI-A2-Physics

Acceleration due to Earth's gravity is -9.8 m/s2. Which part of this number gives the information on direction, making it a vector quantity?

If a wave in a string travels at 52 m/s and has a wavelength of 0.65 m, what is the frequency?

Which one of the following is the definition of Frequency of a wave?

A 2.4 Volt beard trimmer has a 12 Ohm resistance. What current flows through the trimmer?

A 2 kg basketball is thrown through the air northward with a velocity of 2 m/s. What is its momentum?

A person jumps in the air. When they reach their peak height, they are 0.65m off of the ground. The person as a mass of 83 kg. What is their gravitational potential energy?

What is the force of attraction that exists between a car and a motorcycle if they are parked 1.4 m away from each other. The car weighs 1,375 kg and the motorcycle weighs 180 kg.

Energy, both Kinetic and Potential, are expressed in what units?

The gravitational acceleration constant for the moon is -1.62 m/s2. If a person has a mass of 76 kg on earth, what is their weight on the moon?

Which of the following is a scalar quantity?

A 20 kg bicycle is accelerated from 3 m/s to 4 m/s. What is its change in momentum?

A 9 Volt flashlight uses a bulb with 30 Ohm resistance. What current flows through the flashlight?

How many amperes does a 220 Volt hair drier draw when it delivers 2200 Watts of power?

A 5 kg ball rolls down a hill at a velocity of 1.5 m/s. By the time it reaches the bottom of the hill, it is traveling with a velocity of 2 m/s. What is the change in the ball's momentum?

Which variable is replaced with g = - 9.8 m/s2 in the equation F=ma when the force is gravity?

A ball is dropped from a building onto a scale below. The scale reads 92.5 N at the moment of impact. What is the mass of the ball?

Experiments have shown that the maximum wavelength of a sound wave that a healthy person can hear is 17 meters. What would be the frequency of this sound? (The speed of sound is 340 m/s)

A car that has a mass of 800 kg slows down. The brakes exert a force of -2780 N. What is the acceleration of the car?

What is the force that an object exerts on the ground due to gravity called?

Two objects are placed 75 m apart. If the two objects have masses of 3.6 kg and 3.5 kg, what is the force of attraction between the objects?

HESI-A2-Chemistry

HESI-A2-Math

HESI-A2-Vocabulary

HESI-A2-Reading

HESI-A2-Grammar

HESI-A2-Biology

HESI-A2-Anatomy & Physiology

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Acceleration due to Earth's gravity is -9.8 m/s². Which part of this number gives the information on direction, making it a vector quantity?

The gravitational acceleration constant for the moon is -1.62 m/s². If a person has a mass of 76 kg on earth, what is their weight on the moon?

Which variable is replaced with g = - 9.8 m/s² in the equation F=ma when the force is gravity?