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HESI Exam Questions: Physics
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HESI Exam Questions: Physics
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25 Questions

1. A car, starting from rest, accelerates at 10 m/s2 for 5 seconds. What is the velocity of the car after 5 seconds?
2. An astronaut's mass on Earth is 85 kg. What is his mass on Jupiter, where the force of gravity is about 2.53 times that of gravity on Earth?
3. A CD spins in a CD player at a constant rate. There is a speck of dust on the edge of the CD and a second speck halfway in toward the spindle. Which speck has the greater magnitude of acceleration?
4. As a batter hits a ball, the acceleration of the bat is _____ the acceleration of the ball.
5. The speed of light would be slowest in which substance?
6. As a batter hits a ball, the force of the ball on the bat is _____ the force of the bat on the ball.
7. Heat energy uses only conduction to travel through _____.
8. To calculate average speed, you must know distance and _____.
9. A force of 12 kg stretches a spring 3 cm. How far will the spring stretch given a force of 30 kg?
10. What happens when you polarize light?
11. According to Charles's Law, when the pressure on a sample of gas is constant, the Kelvin temperature is proportional to the _____.
12. If the force on an object is doubled, how does its acceleration change?
13. A baby slides an empty box across the floor. If the baby puts her wooden blocks into the box and continues to slide the box, what happens to the force of kinetic friction between the box and the floor?
14. As an object falls with no air resistance, what happens?
15. What is the kinetic energy of a 500-kg wagon moving at 10 m/s?
16. Which of the following describes a vector quantity?
17. If a 5.5-kg ball is moving at 4.5 m/s, what is its momentum?
18. What is the function of a transformer?
19. Which one has the lowest density?
20. Jack stands in front of a plane mirror. If he is 2.5 feet away from the mirror, how far away from Jack is his image?
21. Picture a lever with distance from one end to the fulcrum 10 cm and from the other end to the fulcrum 20 cm. If an input force is applied to the end of the lever farther from the fulcrum, what is the mechanical advantage of the lever?
22. A 1,000-kg car drives at 10 m/s around a circle with a radius of 50 m. What is the centripetal acceleration of the car?
23. Mixing red, blue, and green light in equal amounts leads to which result?
24. A candle viewed in a plane mirror will be _____.
25. An ampere is the amount of electric current existing when one _____ flows past a point on a circuit in one second.