Across
- 7. Amperes and volts both measures of what?
- 8. Which of the following devices is used to measure wind speed?
- 12. A region in a fluid in which the flow revolves around an axis line is known as a ___.
- 14. The letter “m” typically represents which concept in physics?
- 16. What are sounds below 20 Hz known as?
- 19. In which of the following environments can sound travel fastest?
- 22. As an ambulance drives past, you notice the pitch of its siren changing. This is caused by the ___ effect.
- 24. If we reduce the length of a pendulum, what happens to its time of oscillation?
- 25. What kind of lens might be used in reading glasses?
- 26. The sun is mainly composed of which elements?
Down
- 1. The antinode is the point of maximum ____.
- 2. Protons, neutrons and elections all orbit the ____.
- 3. Lubrication can be used to limit the ____ between two objects.
- 4. In 1901, Wilhelm Conrad Röntgen won the first Nobel Prize for physics. What did he discover to earn him this prestigious award?
- 5. A convex lens is ___ at the centre than it is at the ends.
- 6. In the equation for Newton’s Second Law of Motion, F=ma, what does a represent?
- 9. What is the property of an object that can return to its original shape after deformation?
- 10. What is the most common unit for measuring pressure?
- 11. Decibel or Db is the unit of measurement for what?
- 13. Which of the following is the most electrically conductive?
- 15. If two wave sources have an identical frequency and waveform, they are ___.
- 17. What does a vector quantity have that a scalar quantity lacks?
- 18. After nitrogen and oxygen, what is the third most abundant gas in the Earth’s atmosphere?
- 20. In the formula s=d/t, what does s stand for?
- 21. In the formula KE = 0.5 x mv2, what does v stand for?
- 23. What is the heaviest stable element in the periodic table?