Physical Science Practice Questions

1. What is 77°F in degrees Celsius?
   1. 25°C
   2. 32°C
   3. 37°C
   4. 5°C
2. Which of the following best explains the recoil action of a shooting gun?
   1. Newton’s first law of motion
   2. Newton’s second law of motion
   3. Newton’s third law of motion
   4. Newton’s law of universal gravitation
3. The weight of a pendulum clock transforms potential energy to usable mechanical work. Assuming no energy loss, approximately how much work will be done if a 200 g weight descends 0.5 m?
   1. 0.1 J
   2. 1 J
   3. 100 J
   4. 1000 J
4. Which of the following waves on the electromagnetic spectrum has the highest frequency?
   1. microwaves
   2. X-rays
   3. visible light
   4. radio waves
5. Pure water has a pH of
   1. 1
   2. 7
   3. 0
   4. 14
6. During a game of baseball, two players both attempt to catch the same ball. The 50 kg Player A is traveling west at 12 m/s, while the 60 kg Player B is traveling east along the same line at 10 m/s. What will happen when they collide?
   1. Player A will continue forward at reduced velocity, knocking back Player B.
   2. Player B will continue forward at reduced velocity, knocking back Player A.
   3. Player B will continue forward without any decrease in velocity, knocking back Player B.
   4. Player A and Player B will both come to a complete stop.