
Unit 4 Waves & EM Spectrum

Flashcard
•
Science
•
9th Grade
•
Hard
James Barber
FREE Resource
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48 questions
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1.
FLASHCARD QUESTION
Front
What affects the speed of a wave?
Back
The medium it travels through.
2.
FLASHCARD QUESTION
Front
Electromagnetic radiation from the sun bombards our atmosphere constantly. The Earth's atmosphere protects us from exposure to a range of higher energy waves that can be harmful to life. Gamma rays, x-rays, and some ultraviolet waves are ionizing which means they have a higher energy that can knock electrons out of atoms. Exposure to these types of waves can cause damage to cells in living tissue. Which of the following statements is correct according to the reading passage?
Back
The higher the frequency of the wave, the greater the likelihood it will cause damage to living tissue.
3.
FLASHCARD QUESTION
Front
What do waves transfer?
Back
energy
4.
FLASHCARD QUESTION
Front
What is the primary difference between transverse and longitudinal waves?
Back
The direction of particle movement relative to wave propagation
5.
FLASHCARD QUESTION
Front
If the mass of the object was doubled and the force remained the same, what would happen to the acceleration? Hint: a=f/m
Back
It would be halved
6.
FLASHCARD QUESTION
Front
A heavyweight boxer winds up and punches a punching bag. Which of the following is true?
Back
The force acting on the bag is equal and opposite to the force acting on the fist.
7.
FLASHCARD QUESTION
Front
The diagram below shows two balls of equal mass. Ball X is moving toward Ball Y at 2 m/s and Ball Y is at rest. What is the initial velocity of Ball X?
Back
2 m/s
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