Science ACT Practice
Flashcard
•
Science
•
10th - 12th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What are solar cycles?
Back
Solar cycles are periodic variations in the Sun's brightness, often associated with the number of sunspots.
2.
FLASHCARD QUESTION
Front
What is the relationship between sunspots and the Sun's brightness?
Back
The number of sunspots is highest when the Sun is near its maximum brightness.
3.
FLASHCARD QUESTION
Front
What is sound energy?
Back
Sound energy is the energy carried by sound waves as they travel through a medium.
4.
FLASHCARD QUESTION
Front
What is the speed of sound (V_s)?
Back
The speed of sound (V_s) is the speed at which sound waves move through a medium.
5.
FLASHCARD QUESTION
Front
How does density (d) affect the speed of sound in metals?
Back
The speed of sound in metals may vary with density, but it does not consistently increase with density.
6.
FLASHCARD QUESTION
Front
What is the hypothesis regarding density and speed of sound in metals?
Back
The hypothesis suggests that as density (d) for metals increases, the speed of sound (V_s) for metals increases.
7.
FLASHCARD QUESTION
Front
What does a higher density in metals imply about the speed of sound?
Back
A higher density does not necessarily imply a higher speed of sound, as shown by the data.
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