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Flashcards in Science Exam Deck (41)
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1

Define Wave

Spreading of disturbance from one place to another

2

What do waves carry?

Energy

3

Crest

points of maximum displacement on a wave

4

Trough

Points of minimum displacement on a wave

5

Maximum displacement from the rest to the top of the crest and trough to the wave's resting position

Amplitude

6

Frequency

The number of completed waves generated in a certain amount of time

7

The distance between 2 successive points of the same phase

Wavelength

8

How does frequency change the sound we hear?

High frequency: High pitch

Low frequency:Low pitch

9

Ho does amplitude change the sound we hear?

High amplitude:Loud sound

Low amplitude:Soft sound

10

What causes an echo?

The reflection of sound waves off a hard smooth surface

11

What media do sound waves pass through and why?

Solids/Hot substances because the molecules are tightly packed and close together.

12

On a hot day, what color shirt would you wear?

White

13

What is the difference between mechanical and electromagnetic waves?

Mechanical waves need a medium to travel through and an electromagnetic does not.

14

An increase or decrease in the frequency of sound waves (pitch) as an object making sound waves moves toward or away from a person.

Doppler Effect

15

How is EMS organized?

Frequency, Wavelength, &a Energy

16

What part of the EMS can be seen by humans?

Visible light

17

List the colors of the light spectrum from highest to lowest

Violet, Indigo, Blue, Green, Yellow, Orange, Red

18

When a wave bounces back after striking a barrier

Reflection

19

Examples of reflection

Echo and Mirror

20

bending of a wave as it passes from one medium to another

Refraction

21

Example of refraction

1)Talking to a friend who is under water
2) Pencil in a glass of water

22

The disappearance of EM wave into a medium

Absorption

23

Examples of Absorption

Soft pillow (pillow), Black

24

bending, spreading, and interference of waves when they go through a narrow opening

Diffraction

25

Examples of diffraction

Hearing a sound around a corner, reflection on a rippled wave

26

What causes waves to refract?

It bends as it enters a new medium

27

Why does an apple appear red?

Red is being reflected while the rest of the colors are being absorbed (OYGBIV)

28

What causes sound?

Vibrations

29

How are wavelength and frequency related?

Short wavelength: High frequency

Long wavelength: Low frequency

30

The amount of matter in an object

Mass