Question 1

What would be the frequency of a string wave if it travels at a speed of 67 m/s and has a wavelength of 7.2 meters?

Accepted Answer

A) 9.31 Hz 
B) 6.72 Hz 
C) 10 Hz 
D) 0.11 Hz 
A) 9.31 Hz 
B) 6.72 Hz 
C) 10 Hz 
D) 0.11 Hz

Question 2

A 2 kg cannon ball attached to a rope is rotated about a 1.25 meter radius. If the rope broke when it has a centripetal acceleration of 20, how fast was the cannon ball moving?

Accepted Answer

A) 2.5 m/s 
B) 5 m/s 
C) 12.5 m/s 
D) 25 m/s 
A) 2.5 m/s 
B) 5 m/s 
C) 12.5 m/s 
D) 25 m/s

Question 3

A man jumps out of an airplane with a parachute. When he opens his parachute, he is plummeting to the ground at a rate of 100 mph. When he touches the ground 5 minutes later, he lands at a comfortable 10mph. What is his average acceleration during this time?

Accepted Answer

A) 18 miles/hour 
B) -18 miles/hour 
C) 1080 miles/hour 
D) -1080 miles/hour 
A) 18 miles/hour 
B) -18 miles/hour 
C) 1080 miles/hour 
D) -1080 miles/hour

Question 4

What would be the magnitude and direction of a force that is acting on a charge of - 35 μC if an electric field of magnitude 150,000 N/C points due West at a certain spot?

Accepted Answer

A) 5.25 N to the East 
B) 52.5 N to the East 
C) 52.5 N to the West 
D) 5.25 N to the West 
A) 5.25 N to the East 
B) 52.5 N to the East 
C) 52.5 N to the West 
D) 5.25 N to the West

Question 5

A hockey puck comes to a slow stop on the ice. The mass of the puck is 0.5 kg and the force of friction between the puck and the ice is 2.3 N. What is the acceleration of the puck?

Accepted Answer

A) -4.2 m/s² 
B) 4.6 m/s² 
C) -4.6 m/s² 
D) 4.2 m/s² 
A) -4.2 m/s² 
B) 4.6 m/s² 
C) -4.6 m/s² 
D) 4.2 m/s²

Question 6

A 200 g stone attached to a string is rotated about a 2 meter radius. If the string broke when it was at 18 N of tension, how fast was the ball moving?

Accepted Answer

A) 21.10 m/s 
B) 19.28 m/s 
C) 17.45 m/s 
D) 13.42 m/s 
A) 21.10 m/s 
B) 19.28 m/s 
C) 17.45 m/s 
D) 13.42 m/s

Question 7

A concrete slab is moved across a room with a force of 250 N, while friction acts on the slab with a force of 15 N. What is the net force acting on the slab?

Accepted Answer

A) 250 N 
B) 265 N 
C) 235 N 
D) 15 N 
A) 250 N 
B) 265 N 
C) 235 N 
D) 15 N

Question 8

The point at which the rays of light converge after passing through a lens is called what?

Accepted Answer

A) Focal length 
B) Image distance 
C) Focal point 
D) Divergence point 
A) Focal length 
B) Image distance 
C) Focal point 
D) Divergence point

Question 9

A car of 900 kg mass is driven around a circular race track of 600 m radius at a constant velocity of 220 km/h. What is the centripetal force acting on the car?

Accepted Answer

A) 91. 67 N 
B) 85.75 N 
C) 69. 82 N 
D) 70.54 N 
A) 91. 67 N 
B) 85.75 N 
C) 69. 82 N 
D) 70.54 N

Question 10

The rate of gravity, the acceleration of an object in freefall, is approximately 10 m/s2 A ball takes 5 seconds to reach the ground when dropped off a building. If the ball begins the fall with 0 velocity, how fast is the ball moving when it reaches the ground?

Accepted Answer

A) -50 m/s 
B) 50 m/s 
C) -2 m/s 
D) 2 m/s 
A) -50 m/s 
B) 50 m/s 
C) -2 m/s 
D) 2 m/s

Question 11

A basket of oranges sits on a table. The basket has 58.6 J of gravitational Potential Energy and the table is 1.25 m high. What is the mass of the basket?

Accepted Answer

A) 4.98 kg 
B) 4.78 kg 
C) 4.65 kg 
D) 4.32 kg 
A) 4.98 kg 
B) 4.78 kg 
C) 4.65 kg 
D) 4.32 kg

Question 12

When a ball is rolled across a flat floor with a force of 40 N, friction acts against it with a force of 10 N. What is the total force acting on the ball?

Accepted Answer

A) 10 N 
B) 50 N 
C) 40 N 
D) 30 N 
A) 10 N 
B) 50 N 
C) 40 N 
D) 30 N

Question 13

In an amusement park, a 21 kg girl is riding on the merry-go-round that has a radius of 6 m. When it reaches its full speed, the velocity of the girl is 7 m/s. What would be the centripetal force acting on the girl?

Accepted Answer

A) 310 N 
B) 89 N 
C) 217 N 
D) 171.5 N 
A) 310 N 
B) 89 N 
C) 217 N 
D) 171.5 N

Question 14

A plane has a maximum acceleration of 250 mph/minute. How long will it take the plane to reach the 175 mph needed to lift off?

Accepted Answer

A) 0.7 seconds 
B) 54 seconds 
C) 33 seconds 
D) 42 seconds 
A) 0.7 seconds 
B) 54 seconds 
C) 33 seconds 
D) 42 seconds

Question 15

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

Accepted Answer

A) The displacement of the wave from its rest position 
B) The highest point of a transverse wave 
C) The lowest point of a transverse wave 
D) The number of times per second that the wave cycles 
A) The displacement of the wave from its rest position 
B) The highest point of a transverse wave 
C) The lowest point of a transverse wave 
D) The number of times per second that the wave cycles

Question 16

Which of the following is velocity, not speed?

Accepted Answer

A) 16 blocks to the right 
B) 16 m/s north 
C) 16 m forward 
D) 16 mph 
A) 16 blocks to the right 
B) 16 m/s north 
C) 16 m forward 
D) 16 mph

Question 17

A group of students wants to measure the speed of sound. They have a computer program with which they can produce sound and flash a light while producing it. A couple of students stand at a distance of 800 meters, and they measure the time gap between seeing the light and hearing the sound by using a chronometer. They measured the time as 2.34 s. So, at what is the speed of the sound wave?

Accepted Answer

A) 349.4 m/s 
B) 341.9 m/s 
C) 319.2 m/s 
D) 345 m/s 
A) 349.4 m/s 
B) 341.9 m/s 
C) 319.2 m/s 
D) 345 m/s

Question 18

A ball rolls 12 meters to the right in 5 seconds. What is the average velocity of the ball?

Accepted Answer

A) 2.2 m/s to the right 
B) 1.9 m/s to the left 
C) 2.7 m/s to the right 
D) 2.4 m/s to the right 
A) 2.2 m/s to the right 
B) 1.9 m/s to the left 
C) 2.7 m/s to the right 
D) 2.4 m/s to the right

Question 19

A circuit consists of a 4 Ohm resistor, an 8 Ohm resistor, and a 12 Ohm resistor. If the resistors are placed in a series and then wired to a 120 V power supply, what would be the current flowing in the circuit?

Accepted Answer

A) 2.5 A 
B) 4 A 
C) 0.25 A 
D) 0.4 A 
A) 2.5 A 
B) 4 A 
C) 0.25 A 
D) 0.4 A

Question 20

What does Newton's First Law state?

Accepted Answer

A) Forces are equal and opposite. 
B) A body at rest tends to remain in motion while a body in motion will slowly come to a stop 
C) A body at rest will remain at rest and a body in motion will remain in motion unless forces are acting on the body 
D) A body in motion will come to a stop 
A) Forces are equal and opposite. 
B) A body at rest tends to remain in motion while a body in motion will slowly come to a stop 
C) A body at rest will remain at rest and a body in motion will remain in motion unless forces are acting on the body 
D) A body in motion will come to a stop

What would be the frequency of a string wave if it travels at a speed of 67 m/s and has a wavelength of 7.2 meters?

A 2 kg cannon ball attached to a rope is rotated about a 1.25 meter radius. If the rope broke when it has a centripetal acceleration of 20, how fast was the cannon ball moving?

A man jumps out of an airplane with a parachute. When he opens his parachute, he is plummeting to the ground at a rate of 100 mph. When he touches the ground 5 minutes later, he lands at a comfortable 10mph. What is his average acceleration during this time?

What would be the magnitude and direction of a force that is acting on a charge of - 35 μC if an electric field of magnitude 150,000 N/C points due West at a certain spot?

A hockey puck comes to a slow stop on the ice. The mass of the puck is 0.5 kg and the force of friction between the puck and the ice is 2.3 N. What is the acceleration of the puck?

A 200 g stone attached to a string is rotated about a 2 meter radius. If the string broke when it was at 18 N of tension, how fast was the ball moving?

A concrete slab is moved across a room with a force of 250 N, while friction acts on the slab with a force of 15 N. What is the net force acting on the slab?

The point at which the rays of light converge after passing through a lens is called what?

A car of 900 kg mass is driven around a circular race track of 600 m radius at a constant velocity of 220 km/h. What is the centripetal force acting on the car?

The rate of gravity, the acceleration of an object in freefall, is approximately 10 m/s² A ball takes 5 seconds to reach the ground when dropped off a building. If the ball begins the fall with 0 velocity, how fast is the ball moving when it reaches the ground?

A basket of oranges sits on a table. The basket has 58.6 J of gravitational Potential Energy and the table is 1.25 m high. What is the mass of the basket?

When a ball is rolled across a flat floor with a force of 40 N, friction acts against it with a force of 10 N. What is the total force acting on the ball?

In an amusement park, a 21 kg girl is riding on the merry-go-round that has a radius of 6 m. When it reaches its full speed, the velocity of the girl is 7 m/s. What would be the centripetal force acting on the girl?

A plane has a maximum acceleration of 250 mph/minute. How long will it take the plane to reach the 175 mph needed to lift off?

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

Which of the following is velocity, not speed?

A ball rolls 12 meters to the right in 5 seconds. What is the average velocity of the ball?

A circuit consists of a 4 Ohm resistor, an 8 Ohm resistor, and a 12 Ohm resistor. If the resistors are placed in a series and then wired to a 120 V power supply, what would be the current flowing in the circuit?

What does Newton's First Law state?

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Exam 7: HESI-A2-Physics

What would be the frequency of a string wave if it travels at a speed of 67 m/s and has a wavelength of 7.2 meters?

A 2 kg cannon ball attached to a rope is rotated about a 1.25 meter radius. If the rope broke when it has a centripetal acceleration of 20, how fast was the cannon ball moving?

A man jumps out of an airplane with a parachute. When he opens his parachute, he is plummeting to the ground at a rate of 100 mph. When he touches the ground 5 minutes later, he lands at a comfortable 10mph. What is his average acceleration during this time?

What would be the magnitude and direction of a force that is acting on a charge of - 35 μC if an electric field of magnitude 150,000 N/C points due West at a certain spot?

A hockey puck comes to a slow stop on the ice. The mass of the puck is 0.5 kg and the force of friction between the puck and the ice is 2.3 N. What is the acceleration of the puck?

A 200 g stone attached to a string is rotated about a 2 meter radius. If the string broke when it was at 18 N of tension, how fast was the ball moving?

A concrete slab is moved across a room with a force of 250 N, while friction acts on the slab with a force of 15 N. What is the net force acting on the slab?

The point at which the rays of light converge after passing through a lens is called what?

A car of 900 kg mass is driven around a circular race track of 600 m radius at a constant velocity of 220 km/h. What is the centripetal force acting on the car?

The rate of gravity, the acceleration of an object in freefall, is approximately 10 m/s2 A ball takes 5 seconds to reach the ground when dropped off a building. If the ball begins the fall with 0 velocity, how fast is the ball moving when it reaches the ground?

A basket of oranges sits on a table. The basket has 58.6 J of gravitational Potential Energy and the table is 1.25 m high. What is the mass of the basket?

When a ball is rolled across a flat floor with a force of 40 N, friction acts against it with a force of 10 N. What is the total force acting on the ball?

In an amusement park, a 21 kg girl is riding on the merry-go-round that has a radius of 6 m. When it reaches its full speed, the velocity of the girl is 7 m/s. What would be the centripetal force acting on the girl?

A plane has a maximum acceleration of 250 mph/minute. How long will it take the plane to reach the 175 mph needed to lift off?

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

Which of the following is velocity, not speed?

A ball rolls 12 meters to the right in 5 seconds. What is the average velocity of the ball?

A circuit consists of a 4 Ohm resistor, an 8 Ohm resistor, and a 12 Ohm resistor. If the resistors are placed in a series and then wired to a 120 V power supply, what would be the current flowing in the circuit?

What does Newton's First Law state?

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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The rate of gravity, the acceleration of an object in freefall, is approximately 10 m/s² A ball takes 5 seconds to reach the ground when dropped off a building. If the ball begins the fall with 0 velocity, how fast is the ball moving when it reaches the ground?