HESI A2: Physics (Quiz 3) Welcome to your HESI A2 Practice Quizzes. Note: We designed FIVE (5) sets of practice quizzes for this Domain. Each set has 30 questions. Domain 6 (quiz 3): Physics. (30 questions) Please click NEXT to start your Free HESI Practice Quizzes right away. Best of Luck! 1. 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? 1.5 x 10^-13 N 3.0 x 10^-13 N 4.6 x 10^-13 N 1.5 x 10^-11 N None 2. Three hockey pucks collide on the ice. Hockey puck A hits hockey puck B with a force of 9N to the right. Hockey puck B hits hockey puck C at the same moment and in the same direction with a force of 4 N, not including the force from puck A. What is the resulting force on hockey puck A? 13 N to the right 9 N to the left 5 N to the right 4 N to the left None 3. An ice skater, who has a mass of 70 kg has 1500 J of Kinetic Energy. What is the velocity of the skater? 42.85 m/s 171.38 m/s 6.54 m/s 13.09 m/s None 4. A pendulum makes 26 vibrations every 13 seconds. What is the frequency? 0.5 Hz 0.077 Hz 5 Hz 2 Hz None 5. 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? 0.25 A 0.4 A 2.5 A 4 A None 6. Which two quantities are needed to determine the momentum of an object? Velocity and direction Mass and direction Mass and velocity Mass and acceleration None 7. Object 1 has a charge of 25 μC and is placed 35 cm from Object 2 that has a charge of 40 μC. What is the magnitude of the resulting force between the two objects? 55.01 N 60.18 N 73.47 N 53.88 N None 8. 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) 0.05 Hz 0.34 Hz 20 Hz 25 Hz None 9. Marsha goes cliff jumping. She has a mass of 72 kilograms and is accelerating at almost 10 m/s2. What is the Force she experiences when she hits the water? 75 N down 72 N up 720 N down 720 N up None 10. What is the general rule for magnetic charges? Like charges repel and opposites attract. Like charges attract and opposites repel. Like charges attract and opposites also attract. Like charges repel and opposites also repel None 11. Three hockey pucks collide on the ice. Hockey puck A hits hockey puck B with a force of 9N to the right. Hockey puck B hits hockey puck C at the same moment and in the same direction with a force of 4 N. What is the resultant force on hockey puck C? 13 N to the right 5 N to the left 4 N to the right 9 N to the left None 12. A ball is thrown downward with a force of 34 N. The Force of gravity acting on the ball is an additional 10 N. What is the net force on the ball? 44 N down 24 N up 24 N down 44 N up None 13. If a particular substance has a refractive index of 2.25, how fast does light travel through it? 1.23 x 10^8 m/s 1.78 x 10^8 m/s 1.33 x 10^8 m/s 5.33 x 10^8 m/s None 14. A certain material has an index of refraction of 1.33. What is the speed of light in this material? 3.56 x 10^8 m/s 2.26 x 10^8 m/s 1.26 x 10^8 m/s 2.9 x 10^8 m/s None 15. Amelia drives her car at with an average speed of 35 mph for 15 minutes. How far did she travel? 8.75 miles 5 miles 2.33 miles 10 miles None 16. A ship is traveling from Italy to Santorini. It travels a distance of 56 km in 7,200 seconds. What is the average speed of the ship? 8.87 m/s 7.78 m/s 16.5 m/s 15.6 m/s None 17. A car travels 1,600 meters in 3 minutes. What is the average speed of the car? 53.33 m/s 0.12 m/a 8.89 m/s 3,200 m/s None 18. A train moves from rest to a speed of 36 km/h in 30 minutes. What is its acceleration? 0.06 m/s² 0.03 m/s² 0.0056 m/s² 0.04 m/s² None 19. An object with an initial velocity of 5 m/s uniformly accelerates until it reaches a final velocity of 23 m/s in half an hour. What is the acceleration of that object? 0.04 m/s² 0.03 m/s² 0.02 m/s² 0.01 m/s² None 20. A toy rocket is launched with an initial speed of 48 m/s at an angle of 50°. How far does the projectile travel horizontally after 42 seconds? 1290 m 1480 m 2010 m 1000 m None 21. A motorcyclist accelerates his bike over a period of 3 seconds, and the motorcycle wheel increases from 23 revolutions per minute to 34 revolutions per minute. What is the angular acceleration of the wheel? 3.7 rev/s² 102 rev/s² -3.7 rev/s² 33 rev/s² None 22. 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? 217 N 89 N 310 N 171.5 N None 23. A 2 kg basketball is thrown through the air northward with a velocity of 2 m/s. What is its momentum? 2 kg m/s north 40 kg m/s north 4 kg m/s north 8 kg m/s north None 24. 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. 1.1 x 10^-5 N 8.4 x 10^-6 N 4.2 x 10^-6 N 1.6 x 10^-5 N None 25. Two unlike charges are placed near each other. What will happen? They will oscillate They will orbit each other They will repel each other They will attract None 26. A bowling ball and pin collide. The ball hits the pin and experiences a force of 20 N. What is the force on the bowling pin during the collision? -20 N 20 N 0 N 10 N None 27. Which law is best described by the equation F= ka (where F is force measured in N, a is acceleration in m/s2, and k is the proportionality constant in kg) Newton’s First Law Newton’s Third Law Newton’s Second Law None 28. The equation for force, given by Newton’s Second Law, is F=ma. M (mass) is measured in kilograms and acceleration is measured in m/s2. What is force measured in? Naughts Coulombs Newtons Meters/kilogram None 29. A car comes to a gentle stop at a stoplight. The car was traveling at 35 mph and comes to a full stop in 45 seconds. What is the acceleration during this time in mph/minute? -0.7778 mph/minute 0.7778 mph/minute -0.013 mph/minute 0.013 mph/minute None 30. Two bumper cars ram into a third bumper car from opposite sides. The first hits the third with a force of 51N to the right. The second hits the third with a force of 43 N to the left. What is the net force on the third bumper car assuming that it was not accelerating during the collision? (The right direction is negative and the left is positive) -94 N 94 N -8N 8 N None 1 out of 30 Time is Up! Time's up
