What type of wave is sound?
Answer and explanation
Correct answer: A. A mechanical wave that needs a medium
- Step 1: Sound travels by vibrating particles of a material. Answer: A mechanical wave that needs a medium. Why not the others: Electromagnetic and light waves can cross a vacuum.
Practise more Physical Science.
Free questions with an explanation for every one, and full timed GED Test (High School Equivalency) mock tests.
More Physical Science questions
- What is the unit of force?
- An object has a mass of 10 kilograms and a volume of 2 cubic meters. What is its density?
- Which element is the most abundant gas in Earth's atmosphere?
- Which state of matter has a definite volume but no definite shape?
- In a circuit, which unit measures electric current?
- Two magnets are placed with their north poles facing each other. What happens?